1
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LIU X, GALLAVARDIN T, BUREL F, VULUGA D. Influence of quadruple hydrogen bonding on polyvinyl butyral resin properties. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.110243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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2
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Phase-locked constructing dynamic supramolecular ionic conductive elastomers with superior toughness, autonomous self-healing and recyclability. Nat Commun 2022; 13:4868. [PMID: 35982044 PMCID: PMC9388535 DOI: 10.1038/s41467-022-32517-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 08/03/2022] [Indexed: 11/16/2022] Open
Abstract
Stretchable ionic conductors are considerable to be the most attractive candidate for next-generation flexible ionotronic devices. Nevertheless, high ionic conductivity, excellent mechanical properties, good self-healing capacity and recyclability are necessary but can be rarely satisfied in one material. Herein, we propose an ionic conductor design, dynamic supramolecular ionic conductive elastomers (DSICE), via phase-locked strategy, wherein locking soft phase polyether backbone conducts lithium-ion (Li+) transport and the combination of dynamic disulfide metathesis and stronger supramolecular quadruple hydrogen bonds in the hard domains contributes to the self-healing capacity and mechanical versatility. The dual-phase design performs its own functions and the conflict among ionic conductivity, self-healing capability, and mechanical compatibility can be thus defeated. The well-designed DSICE exhibits high ionic conductivity (3.77 × 10−3 S m−1 at 30 °C), high transparency (92.3%), superior stretchability (2615.17% elongation), strength (27.83 MPa) and toughness (164.36 MJ m−3), excellent self-healing capability (~99% at room temperature) and favorable recyclability. This work provides an interesting strategy for designing the advanced ionic conductors and offers promise for flexible ionotronic devices or solid-state batteries. Stretchable ionic conductors are attractive candidates for flexible ionotronics but combining high conductivity with excellent mechanical properties is challenging. Herein, the authors combine these properties in a dynamic supramolecular ionic conductive elastomer enabling lithium-ion transport in the soft phase and dynamic disulfide and supramolecular hydrogen bonding in the hard segments.
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3
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Yang L, Lou J, Yuan J, Deng J. A review of shape memory polymers based on the intrinsic structures of their responsive switches. RSC Adv 2021; 11:28838-28850. [PMID: 35478574 PMCID: PMC9038180 DOI: 10.1039/d1ra04434f] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/23/2021] [Indexed: 12/30/2022] Open
Abstract
Shape memory polymers (SMPs), as stimuli-responsive materials, have attracted worldwide attention. Based on the history and development of SMPs, a variety of reports about SMPs in recent years are summarized in this paper. The responsive switches are analyzed and divided into two kinds according to their intrinsic structures: physical switch and chemical one. Then, detailed classification and comprehensive discussion of SMPs are further elaborated, based on the intrinsic structures of responsive switches and stimulation types. Finally, the development and prospect of SMPs are objectively predicted and forecasted.
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Affiliation(s)
- Lide Yang
- College of Materials Science and Engineering, Hunan University Changsha 410082 P. R. China
| | - Jiankun Lou
- College of Materials Science and Engineering, Hunan University Changsha 410082 P. R. China
| | - Jianmin Yuan
- College of Materials Science and Engineering, Hunan University Changsha 410082 P. R. China
| | - Jianru Deng
- College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
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4
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5
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Li Z, Zhu YL, Niu W, Yang X, Jiang Z, Lu ZY, Liu X, Sun J. Healable and Recyclable Elastomers with Record-High Mechanical Robustness, Unprecedented Crack Tolerance, and Superhigh Elastic Restorability. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2101498. [PMID: 34062022 DOI: 10.1002/adma.202101498] [Citation(s) in RCA: 110] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/02/2021] [Indexed: 06/12/2023]
Abstract
Spider silk is one of the most robust natural materials, which has extremely high strength in combination with great toughness and good elasticity. Inspired by spider silk but beyond it, a healable and recyclable supramolecular elastomer, possessing superhigh true stress at break (1.21 GPa) and ultrahigh toughness (390.2 MJ m-3 ), which are, respectively, comparable to and ≈2.4 times higher than those of typical spider silk, is developed. The elastomer has the highest tensile strength (ultimate engineering stress, 75.6 MPa) ever recorded for polymeric elastomers, rendering it the strongest and toughest healable elastomer thus far. The hyper-robust elastomer exhibits superb crack tolerance with unprecedentedly high fracture energy (215.2 kJ m-2 ) that even exceeds that of metals and alloys, and superhigh elastic restorability allowing dimensional recovery from elongation over 12 times. These extraordinary mechanical performances mainly originate from the meticulously engineered hydrogen-bonding segments, consisting of multiple acylsemicarbazide and urethane moieties linked with flexible alicyclic hexatomic spacers. Such hydrogen-bonding segments, incorporated between extensible polymer chains, aggregate to form geometrically confined hydrogen-bond arrays resembling those in spider silk. The hydrogen-bond arrays act as firm but reversible crosslinks and sacrificial bonds for enormous energy dissipation, conferring exceptional mechanical robustness, healability, and recyclability on the elastomer.
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Affiliation(s)
- Zequan Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
| | - You-Liang Zhu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Wenwen Niu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Xiao Yang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Zhiyong Jiang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Zhong-Yuan Lu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin university, Changchun, 130023, China
| | - Xiaokong Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Junqi Sun
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
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6
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Traeger H, Sagara Y, Kiebala DJ, Schrettl S, Weder C. Folded Perylene Diimide Loops as Mechanoresponsive Motifs. Angew Chem Int Ed Engl 2021; 60:16191-16199. [PMID: 33961723 DOI: 10.1002/anie.202105219] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Indexed: 01/09/2023]
Abstract
A supramolecular mechanophore that can be integrated into polymers and indicates deformation by a fluorescence color change is reported. Two perylene diimides (PDIs) were connected by a short spacer and equipped with peripheral atom transfer polymerization initiators. In the idle state, the motif folds into a loop and its emission is excimer dominated. Poly(methyl acrylate) (PMA) chains were grown from the motif and the mechanophore-containing polymer was blended with unmodified PMA to afford materials that display a visually discernible fluorescence color change upon deformation, which causes the loops to unfold. The response is instant, and correlates linearly with the applied strain. Experiments with a reference polymer containing only one PDI moiety show that looped mechanophores that display intramolecular excimer formation offer considerable advantages over intermolecular dye aggregates, including a concentration-independent response, direct signaling of mechanical processes, and a more pronounced optical change.
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Affiliation(s)
- Hanna Traeger
- Adolphe Merkle Institute (AMI), University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Yoshimitsu Sagara
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Derek J Kiebala
- Adolphe Merkle Institute (AMI), University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Stephen Schrettl
- Adolphe Merkle Institute (AMI), University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Christoph Weder
- Adolphe Merkle Institute (AMI), University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
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7
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Wang F, Yang Z, Li J, Zhang C, Sun P. Bioinspired Polyurethane Using Multifunctional Block Modules with Synergistic Dynamic Bonds. ACS Macro Lett 2021; 10:510-517. [PMID: 35570774 DOI: 10.1021/acsmacrolett.1c00054] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Nature embraces an intriguing strategy to create high-performance biomaterials, such as spider silk which presents an unparalleled combination of stiffness, tensile strength, and toughness via hierarchical structures. However, to fabricate synthetic polymers with such excellent properties remains a challenging task. Inspired by the integration of multiblock backbone and densely H-bonding assemblies in spider silk as well as the delicate iron-catecholate complexes in mussel byssus, we proposed a novel molecular design with multifunctional block modules to obtain polymer materials that exhibit excellent mechanical property, self-healing ability, and reprocessability. It was achieved by introducing reversible iron-catechol (DOPA-Fe3+) cross-links and quadruple H-bonds bearing 2-ureido-4-[1H]-pyrimidinone (UPy) dimers as multifunctional blocks into a segmented polyurethane backbone with urethane blocks and semicrystalline polycaprolactone (PCL) blocks. These two types of dynamic cross-linking knots served as the sacrificial bonds to dissipate energy efficiently under external stress burden, endowing the dual physical cross-linked networks with increased toughness and breaking elongation. Moreover, the DOPA-Fe3+ complexes could increase the crystallization of PCL, leading to remarkably enhanced Young's modulus and tensile strength. Solid-state NMR revealed the formation of quadruple H-bonds in UPy dimers and the presence of DOPA-Fe3+ complexes, which restricted the mobility of the mobile phase and enhanced the crystallinity of the PCL domain. This work provides a feasible way to develop bioinspired materials with self-healable and reprocessable features, in addition to balanced enhancement of both stiffness and toughness.
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Affiliation(s)
- Fenfen Wang
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhijun Yang
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jian Li
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry, Nankai University, Tianjin 300071, China
| | - Chi Zhang
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry, Nankai University, Tianjin 300071, China
| | - Pingchuan Sun
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry, Nankai University, Tianjin 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
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8
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Bowser BH, Wang S, Kouznetsova TB, Beech HK, Olsen BD, Rubinstein M, Craig SL. Single-Event Spectroscopy and Unravelling Kinetics of Covalent Domains Based on Cyclobutane Mechanophores. J Am Chem Soc 2021; 143:5269-5276. [PMID: 33783187 DOI: 10.1021/jacs.1c02149] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mechanochemical reactions that lead to an increase in polymer contour length have the potential to serve as covalent synthetic mimics of the mechanical unfolding of noncovalent "stored length" domains in structural proteins. Here we report the force-dependent kinetics of stored length release in a family of covalent domain polymers based on cis-1,2-substituted cyclobutane mechanophores. The stored length is determined by the size (n) of a fused ring in an [n.2.0] bicyclic architecture, and it can be made sufficiently large (>3 nm per event) that individual unravelling events are resolved in both constant-velocity and constant-force single-molecule force spectroscopy (SMFS) experiments. Replacing a methylene in the pulling attachment with a phenyl group drops the force necessary to achieve rate constants of 1 s-1 from ca. 1970 pN (dialkyl handles) to 630 pN (diaryl handles), and the substituent effect is attributed to a combination of electronic stabilization and mechanical leverage effects. In contrast, the kinetics are negligibly perturbed by changes in the amount of stored length. The independent control of unravelling force and extension holds promise as a probe of molecular behavior in polymer networks and for optimizing the behaviors of materials made from covalent domain polymers.
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Affiliation(s)
- Brandon H Bowser
- NSF Center for the Chemistry of Molecularly Optimized Networks, Duke University, Durham, North Carolina 27708, United States.,Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Shu Wang
- NSF Center for the Chemistry of Molecularly Optimized Networks, Duke University, Durham, North Carolina 27708, United States.,Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Tatiana B Kouznetsova
- NSF Center for the Chemistry of Molecularly Optimized Networks, Duke University, Durham, North Carolina 27708, United States.,Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Haley K Beech
- NSF Center for the Chemistry of Molecularly Optimized Networks, Duke University, Durham, North Carolina 27708, United States.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Bradley D Olsen
- NSF Center for the Chemistry of Molecularly Optimized Networks, Duke University, Durham, North Carolina 27708, United States.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Michael Rubinstein
- NSF Center for the Chemistry of Molecularly Optimized Networks, Duke University, Durham, North Carolina 27708, United States.,Department of Chemistry, Duke University, Durham, North Carolina 27708, United States.,Departments of Physics, Mechanical Engineering and Materials Science, and Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States.,World Premier Institute for Chemical Reaction Design and Discovery, Hokkaido University, Sapporo, Japan
| | - Stephen L Craig
- NSF Center for the Chemistry of Molecularly Optimized Networks, Duke University, Durham, North Carolina 27708, United States.,Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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9
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Traeger H, Kiebala DJ, Weder C, Schrettl S. From Molecules to Polymers-Harnessing Inter- and Intramolecular Interactions to Create Mechanochromic Materials. Macromol Rapid Commun 2020; 42:e2000573. [PMID: 33191595 DOI: 10.1002/marc.202000573] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/16/2020] [Indexed: 12/30/2022]
Abstract
The development of mechanophores as building blocks that serve as predefined weak linkages has enabled the creation of mechanoresponsive and mechanochromic polymer materials, which are interesting for a range of applications including the study of biological specimens or advanced security features. In typical mechanophores, covalent bonds are broken when polymers that contain these chemical motifs are exposed to mechanical forces, and changes of the optical properties upon bond scission can be harnessed as a signal that enables the detection of applied mechanical stresses and strains. Similar chromic effects upon mechanical deformation of polymers can also be achieved without relying on the scission of covalent bonds. The dissociation of motifs that feature directional noncovalent interactions, the disruption of aggregated molecules, and conformational changes in molecules or polymers constitute an attractive element for the design of mechanoresponsive and mechanochromic materials. In this article, it is reviewed how such alterations of molecules and polymers can be exploited for the development of mechanochromic materials that signal deformation without breaking covalent bonds. Recent illustrative examples are highlighted that showcase how the use of such mechanoresponsive motifs enables the visual mapping of stresses and damage in a reversible and highly sensitive manner.
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Affiliation(s)
- Hanna Traeger
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, CH-1700, Switzerland
| | - Derek J Kiebala
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, CH-1700, Switzerland
| | - Christoph Weder
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, CH-1700, Switzerland
| | - Stephen Schrettl
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg, CH-1700, Switzerland
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10
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Lins L, Wianny F, Dehay C, Jestin J, Loh W. Adhesive Sponge Based on Supramolecular Dimer Interactions as Scaffolds for Neural Stem Cells. Biomacromolecules 2020; 21:3394-3410. [PMID: 32584556 DOI: 10.1021/acs.biomac.0c00825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Improving cell-material interactions of nonadhesive scaffolds is crucial for the success of biomaterials in tissue engineering. Due to their high surface area and open pore structure, sponges are widely reported as absorbent materials for biomedical engineering. The biocompatibility and biodegradability of polysaccharide sponges, coupled with the chemical functionalities of supramolecular dimers, make them promising combinations for the development of adhesive scaffolds. Here, a supramolecular tactic based on (UPy)-modified polysaccharide associated with three-dimensional structure of sponges was developed to reach enhanced cellular adhesion. For this purpose, three approaches were examined individually in order to accomplish this goal. In the first approach, the backbone polysaccharides with noncell adhesive properties were modified via a modular tactic using UPy-dimers. Hereupon, the physical-chemical characterizations of the supramolecular sponges were performed, showing that the presence of supramolecular dimers improved their mechanical properties and induced different architectures. In addition, small-angle neutron scattering (SANS) measurements and rheology experiments revealed that the UPy-dimers into agarose backbone are able to reorganize in thinning aggregates. It is also demonstrated that the resulted UPy-agarose (AGA-UPy) motifs in surfaces can promote cell adhesion. Finally, the last approach showed the great potential for use of this novel material in bioadhesive scaffolds indicating that neural stem cells show a spreading bias in soft materials and that cell adhesion was enhanced for all UPy-modified sponges compared to the reference, i.e. unmodified sponges. Therefore, by functionalizing sponge surfaces with UPy-dimers, an adhesive supramolecular scaffold is built which opens the opportunity its use neural tissues regeneration.
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Affiliation(s)
- Luanda Lins
- Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP 13083-970, Brazil
| | - Florence Wianny
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM, Stem Cell and Brain Research Institute U1208, 69500 Bron, France
| | - Colette Dehay
- Univ Lyon, Université Claude Bernard Lyon 1, INSERM, Stem Cell and Brain Research Institute U1208, 69500 Bron, France
| | - Jacques Jestin
- Laboratoire Léon Brillouin, UMR12, Bat 563 CEA Saclay, 91191 Gif sur Yvette Cedex, France
| | - Watson Loh
- Institute of Chemistry, University of Campinas (UNICAMP), Campinas, SP 13083-970, Brazil
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11
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Jiang N, Ruan SH, Liu XM, Zhu D, Li B, Bryce MR. Supramolecular Oligourethane Gel with Multicolor Luminescence Controlled by Mechanically Sensitive Hydrogen-Bonding. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2020; 32:5776-5784. [PMID: 32905361 PMCID: PMC7469221 DOI: 10.1021/acs.chemmater.0c01620] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/17/2020] [Indexed: 06/11/2023]
Abstract
We report a new type of mechanically sensitive multicolor luminescent oligourethane gel (OUA-gel). The conformation of the oligomeric chains can be controlled by changing the strength of hydrogen bonds. The optical properties of the oligomers are highly dependent on the conformations which vary in response to mechanical stresses and phase transitions. The design relies on the introduction of a single mechanical chromophore, aurintricarboxylic acid, with propeller-like, spatially crowded, and highly twisted conformations, and the presence of three carboxyl groups, which provide multidirectional hydrogen-bonding opportunities. Introducing dimethylsulfoxide (DMSO) as an additional H-bond acceptor molecule leads to a viscous OUA-gel which exhibits multiemission colors because of changes in the chain conformation within the matrix, which are induced by different strengths of H bonds. The conformation can be adjusted by mechanical force or temperature, both of which influence the H-bonding. The multifunctional and multicolored mechanochromism of the OUA-gel has great promise in sensing applications. The results represent a substantial step toward understanding the mechanism of polychromism in soft materials and the molecular design of advanced smart materials.
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Affiliation(s)
- Nan Jiang
- Key Laboratory of
Nanobiosensing and Nanobioanalysis at Universities of Jilin Province,
Faculty of Chemistry, Northeast Normal University, Renmin Street No. 5268, Changchun 130024, China
| | - Shi-Hao Ruan
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, P. R. China
| | - Xing-Man Liu
- Key Laboratory of
Nanobiosensing and Nanobioanalysis at Universities of Jilin Province,
Faculty of Chemistry, Northeast Normal University, Renmin Street No. 5268, Changchun 130024, China
| | - Dongxia Zhu
- Key Laboratory of
Nanobiosensing and Nanobioanalysis at Universities of Jilin Province,
Faculty of Chemistry, Northeast Normal University, Renmin Street No. 5268, Changchun 130024, China
| | - Bing Li
- College of Physics, Changchun
Normal University, Changchun 130032, China
| | - Martin R. Bryce
- Department
of Chemistry, Durham University, Durham DH1 3LE, U.K.
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12
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Biswas S, Yashin VV, Balazs AC. Harnessing biomimetic cryptic bonds to form self-reinforcing gels. SOFT MATTER 2020; 16:5120-5131. [PMID: 32373828 DOI: 10.1039/d0sm00145g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Cryptic sites, which lay hidden in folded biomolecules, become exposed by applied force and form new bonds that reinforce the biomaterial. While these binding interactions effectively inhibit mechanical deformation, there are few synthetic materials that harness mechano-responsive cryptic sites to forestall damage. Here, we develop a computational model to design polymer gels encompassing cryptic sites and a lower critical solution temperature (LCST). LCST gels swell with a decrease in temperature, thereby generating internal stresses within the sample. The gels also encompass loops held together by the cryptic sites, as well as dangling chains with chemically reactive ends. A decrease in temperature or an applied force causes the loops to unfold and expose the cryptic sites, which then bind to the dangling chains. We show that these binding interactions act as "struts" that reinforce the network, as indicated by a significant decrease in the volume of the gel (from 44% to 80%) and shifts in the volume phase transition temperature. Once the temperature is increased or the deformation is removed, the latter "cryptic bonds" are broken, allowing the loops to refold and the gel to return to its original state. These findings provide guidelines for designing polymer networks with reversible, mechano-responsive bonds, which allow gels to undergo a self-stiffening behavior in response to a temperature-induced internal stress or external force. When applied as a coating, these gels can prevent the underlying materials from undergoing damage and thus, extend the lifetime of the system.
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Affiliation(s)
- Santidan Biswas
- Chemical Engineering Department, University of Pittsburgh, Pittsburgh, PA 15261, USA.
| | - Victor V Yashin
- Chemical Engineering Department, University of Pittsburgh, Pittsburgh, PA 15261, USA.
| | - Anna C Balazs
- Chemical Engineering Department, University of Pittsburgh, Pittsburgh, PA 15261, USA.
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13
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Karanikolopoulos N, Choinopoulos I, Pitsikalis M. Poly{
dl
‐lactide‐
b
‐[oligo(ethylene glycol) methyl ether (meth)acrylate)]} block copolymers. Synthesis, characterization, micellization behavior in aqueous solutions and encapsulation of model hydrophobic compounds. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Nikos Karanikolopoulos
- Industrial Chemistry Laboratory, Department of Chemistry National and Kapodistrian University of Athens Athens Greece
| | - Ioannis Choinopoulos
- Industrial Chemistry Laboratory, Department of Chemistry National and Kapodistrian University of Athens Athens Greece
| | - Marinos Pitsikalis
- Industrial Chemistry Laboratory, Department of Chemistry National and Kapodistrian University of Athens Athens Greece
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14
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Song P, Wang H. High-Performance Polymeric Materials through Hydrogen-Bond Cross-Linking. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1901244. [PMID: 31215093 DOI: 10.1002/adma.201901244] [Citation(s) in RCA: 148] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 04/03/2019] [Indexed: 05/17/2023]
Abstract
It has always been critical to develop high-performance polymeric materials with exceptional mechanical strength and toughness, thermal stability, and even healable properties for meeting performance requirements in industry. Conventional chemical cross-linking leads to enhanced mechanical strength and thermostability at the expense of extensibility due to mutually exclusive mechanisms. Such major challenges have recently been addressed by using noncovalent cross-linking of reversible multiple hydrogen-bonds (H-bonds) that widely exist in biological materials, such as silk and muscle. Recent decades have witnessed the development of many tailor-made high-performance H-bond cross-linked polymeric materials. Here, recent advances in H-bond cross-linking strategies are reviewed for creating high-performance polymeric materials. H-bond cross-linking of polymers can be realized via i) self-association of interchain multiple H-bonding interactions or specific H-bond cross-linking motifs, such as 2-ureido-4-pyrimidone units with self-complementary quadruple H-bonds and ii) addition of external cross-linkers, including small molecules, nanoparticles, and polymer aggregates. The resultant cross-linked polymers normally exhibit tunable high strength, large extensibility, improved thermostability, and healable capability. Such performance portfolios enable these advanced polymers to find many significant cutting-edge applications. Major challenges facing existing H-bond cross-linking strategies are discussed, and some promising approaches for designing H-bond cross-linked polymeric materials in the future are also proposed.
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Affiliation(s)
- Pingan Song
- School of Engineering, Zhejiang A & F University, Hangzhou, 311300, China
- Centre for Future Materials, University of Southern Queensland, Springfield Campus, QLD, 4300, Australia
| | - Hao Wang
- Centre for Future Materials, University of Southern Queensland, Springfield Campus, QLD, 4300, Australia
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15
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Huang J, Kong S, Tang Z, Wu S, Guo B, Zhang L. Facile Strategy for the Biomimetic Heterogeneous Design of Elastomers with Mechanical Robustness, Malleability, and Functionality. ACS Macro Lett 2020; 9:49-55. [PMID: 35638670 DOI: 10.1021/acsmacrolett.9b00845] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
It remains challenging to simultaneously realize mechanical robustness, malleability, and functionality in elastomers via facile yet efficient methods. Herein, a simple strategy for the biomimetic heterogeneous design is proposed to achieve mechanically strong, malleable, and functionalized elastomers. We demonstrate the strategy by straightforward mechanical mixing of a highly cross-linked vitrimeric elastomer with a homogeneous gum and subsequent curing, resulting in heterogeneous vitrimeric elastomers (hetero-VEs). The hetero-VEs comprise two phases: a hard phase with dense cross-links and a soft matrix with few cross-links, with excellent interface between the two phases. The hard phases can be deformed upon loading, dissipating energy, which significantly improves the overall mechanical performance of the hetero-VEs. When conductive fillers are incorporated into the soft matrix, due to the volume exclusion effect of the hard phases, the resultant hetero-VEs exhibit high conductivity with a small fraction of fillers. In view of the facile and generic preparation process, this strategy should be a promising way to reinforce and functionalize many vitrimeric elastomer systems.
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Affiliation(s)
- Jing Huang
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Shaoxin Kong
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhenghai Tang
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Siwu Wu
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Baochun Guo
- Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Liqun Zhang
- State Key Laboratory of Organic/Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
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16
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Junali Handique, Saikia BJ, Dolui SK. Designing Microencapsulation Based Self-Healing Methylmethacrylate-Glycidyl Methacrylate Copolymer. POLYMER SCIENCE SERIES A 2019. [DOI: 10.1134/s0965545x19050079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Watts A, Hillmyer MA. Aliphatic Polyester Thermoplastic Elastomers Containing Hydrogen-Bonding Ureidopyrimidinone Endgroups. Biomacromolecules 2019; 20:2598-2609. [PMID: 31241922 DOI: 10.1021/acs.biomac.9b00411] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polylactide- block-poly(γ-methyl-ε-caprolactone)- block-polylactide (LML) is a sustainable thermoplastic elastomer (TPE) candidate that exhibits competitive mechanical properties as compared to traditional styrenic TPEs. The relatively low glass transition temperature of the polylactide endblocks, however, results in stress relaxation and low levels of elastic recovery. We report the synthesis and characterization of poly(γ-methyl-ε-caprolactone) (PMCL) and LML end-functionalized with ureidopyrimidinone (UPy) hydrogen-bonding moieties to improve the elastic performance of these polymers. Although UPy-functionalized PMCL shows dynamical mechanical behavior that is distinct from the unfunctionalized homopolymer, it does not exhibit elastomeric behavior at room temperature. The addition of UPy endgroups to LML increases the ultimate tensile strength, elongation at break, and tensile toughness compared to unfunctionalized LML. Stress relaxation studies at a fixed strain show reduced levels of stress relaxation in LML with UPy endgroups. The stress relaxation was further reduced by including semicrystalline poly(( S, S)-lactide) as endblocks with UPy endgroups.
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Affiliation(s)
- Annabelle Watts
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455-0431 , United States
| | - Marc A Hillmyer
- Department of Chemistry , University of Minnesota , Minneapolis , Minnesota 55455-0431 , United States
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18
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Levy A, Feinstein R, Diesendruck CE. Mechanical Unfolding and Thermal Refolding of Single-Chain Nanoparticles Using Ligand–Metal Bonds. J Am Chem Soc 2019; 141:7256-7260. [DOI: 10.1021/jacs.9b01960] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Avishai Levy
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Haifa 3200008, Israel
| | - Roi Feinstein
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Haifa 3200008, Israel
| | - Charles E. Diesendruck
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Haifa 3200008, Israel
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19
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Yang Z, Wang F, Zhang C, Li J, Zhang R, Wu Q, Chen T, Sun P. Bio-inspired self-healing polyurethanes with multiple stimulus responsiveness. Polym Chem 2019. [DOI: 10.1039/c9py00383e] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
High-performance stimuli-responsive polymers that exhibit spontaneous, sophisticated and reversible responses to a wide range of external stimuli are reported, adapting a stimuli-responsive dynamic covalent chemical crosslinker and a biomimetic modular polymer design.
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Affiliation(s)
- Zhijun Yang
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Fenfen Wang
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Chi Zhang
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Jian Li
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Rongchun Zhang
- South China Advanced Institute for Soft Matter Science and Technology (AISMST)
- South China University of Technology
- Guangzhou
- China
| | - Qiang Wu
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Tiehong Chen
- Institute of New Catalytic Material Science
- School of Materials Science and Engineering
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- Nankai University
- Tianjin
| | - Pingchuan Sun
- Key Laboratory of Functional Polymer Materials of Ministry of Education and College of Chemistry
- Nankai University
- Tianjin 300071
- China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
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20
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Microencapsulated self-healing polymers via controlled, surface initiated atom transfer radical polymerization from the surface of graphene oxide. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1603-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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21
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High-performance recyclable cross-linked polyurethane with orthogonal dynamic bonds: The molecular design, microstructures, and macroscopic properties. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.06.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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22
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Biswas S, Yashin VV, Balazs AC. "Patterning with loops" to dynamically reconfigure polymer gels. SOFT MATTER 2018; 14:3361-3371. [PMID: 29663002 DOI: 10.1039/c8sm00270c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The structural and mechanical properties of gels can be controlled by promoting the unfolding (and refolding) of loops (stored lengths) embedded within the networks. As a loop unfolds, the released chain length can increase the extensibility and reconfigurability of the gel. Here, we develop a theoretical model that couples the elasticity of the gel to the dynamic transitions occurring in loops that lie between the crosslinks. Using this model, we show that a thermally-induced swelling of the gel generates an internal strain, which unfolds the loops and thereby further increases the degree of gel swelling. We exploit this cooperative behavior to reconfigure the gel by patterning the location of the loops within the sample. Through this approach, we convert flat, two-dimensional layers into three-dimensional forms and introduce architectural features into uniform 3D slabs. At a fixed temperature, an applied force produces analogous structural transformations. The shape-changes are reversible: the systems return to their original structure when the temperature is reset or the force is removed. The findings provide guidelines for creating materials that interconvert thermal, chemical and mechanical energy to perform work. Such systems could be useful for designing soft robotic materials that convert environmental stimuli into useful functionality.
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Affiliation(s)
- Santidan Biswas
- Chemical Engineering Department, University of Pittsburgh, Pittsburgh, PA 15261, USA.
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23
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Yan X, Liu Z, Zhang Q, Lopez J, Wang H, Wu HC, Niu S, Yan H, Wang S, Lei T, Li J, Qi D, Huang P, Huang J, Zhang Y, Wang Y, Li G, Tok JBH, Chen X, Bao Z. Quadruple H-Bonding Cross-Linked Supramolecular Polymeric Materials as Substrates for Stretchable, Antitearing, and Self-Healable Thin Film Electrodes. J Am Chem Soc 2018; 140:5280-5289. [PMID: 29595956 DOI: 10.1021/jacs.8b01682] [Citation(s) in RCA: 268] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Herein, we report a de novo chemical design of supramolecular polymer materials (SPMs-1-3) by condensation polymerization, consisting of (i) soft polymeric chains (polytetramethylene glycol and tetraethylene glycol) and (ii) strong and reversible quadruple H-bonding cross-linkers (from 0 to 30 mol %). The former contributes to the formation of the soft domain of the SPMs, and the latter furnishes the SPMs with desirable mechanical properties, thereby producing soft, stretchable, yet tough elastomers. The resulting SPM-2 was observed to be highly stretchable (up to 17 000% strain), tough (fracture energy ∼30 000 J/m2), and self-healing, which are highly desirable properties and are superior to previously reported elastomers and tough hydrogels. Furthermore, a gold, thin film electrode deposited on this SPM substrate retains its conductivity and combines high stretchability (∼400%), fracture/notch insensitivity, self-healing, and good interfacial adhesion with the gold film. Again, these properties are all highly complementary to commonly used polydimethylsiloxane-based thin film metal electrodes. Last, we proceed to demonstrate the practical utility of our fabricated electrode via both in vivo and in vitro measurements of electromyography signals. This fundamental understanding obtained from the investigation of these SPMs will facilitate the progress of intelligent soft materials and flexible electronics.
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Affiliation(s)
- Xuzhou Yan
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States
| | - Zhiyuan Liu
- Innovative Center for Flexible Devices, School of Materials Science and Engineering , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | - Qiuhong Zhang
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States.,Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , People's Republic of China
| | - Jeffrey Lopez
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States
| | - Hui Wang
- CAS Key Lab of Human-Machine Intelligence-Synergy Systems, Shenzhen Institutes of Advanced Technology , Chinese Academy of Sciences (CAS) , Shenzhen 518055 , People's Republic of China.,Shenzhen College of Advanced Technology , University of Chinese Academy of Sciences , Shenzhen 518055 , People's Republic of China
| | - Hung-Chin Wu
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States
| | - Simiao Niu
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States
| | - Hongping Yan
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States
| | - Sihong Wang
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States
| | - Ting Lei
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States
| | - Junheng Li
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States
| | - Dianpeng Qi
- Innovative Center for Flexible Devices, School of Materials Science and Engineering , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | - Pingao Huang
- CAS Key Lab of Human-Machine Intelligence-Synergy Systems, Shenzhen Institutes of Advanced Technology , Chinese Academy of Sciences (CAS) , Shenzhen 518055 , People's Republic of China.,Shenzhen College of Advanced Technology , University of Chinese Academy of Sciences , Shenzhen 518055 , People's Republic of China
| | - Jianping Huang
- CAS Key Lab of Human-Machine Intelligence-Synergy Systems, Shenzhen Institutes of Advanced Technology , Chinese Academy of Sciences (CAS) , Shenzhen 518055 , People's Republic of China
| | - Yu Zhang
- CAS Key Lab of Human-Machine Intelligence-Synergy Systems, Shenzhen Institutes of Advanced Technology , Chinese Academy of Sciences (CAS) , Shenzhen 518055 , People's Republic of China
| | - Yuanyuan Wang
- CAS Key Lab of Human-Machine Intelligence-Synergy Systems, Shenzhen Institutes of Advanced Technology , Chinese Academy of Sciences (CAS) , Shenzhen 518055 , People's Republic of China
| | - Guanglin Li
- CAS Key Lab of Human-Machine Intelligence-Synergy Systems, Shenzhen Institutes of Advanced Technology , Chinese Academy of Sciences (CAS) , Shenzhen 518055 , People's Republic of China
| | - Jeffery B-H Tok
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States
| | - Xiaodong Chen
- Innovative Center for Flexible Devices, School of Materials Science and Engineering , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | - Zhenan Bao
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States
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24
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Zhou X, Guo B, Zhang L, Hu GH. Progress in bio-inspired sacrificial bonds in artificial polymeric materials. Chem Soc Rev 2018; 46:6301-6329. [PMID: 28868549 DOI: 10.1039/c7cs00276a] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Mimicking natural structures has been highly pursued in the fabrication of synthetic polymeric materials due to its potential in breaking the bottlenecks in mechanical properties and extending the applications of polymeric materials. Recently, it has been revealed that the energy dissipating mechanisms via sacrificial bonds are among the important factors which account for strong and tough attributes of natural materials. Great progress in synthesis of polymeric materials consisting of sacrificial bonds has been achieved. The present review aims at (1) summarizing progress in the mechanics and chemistry of sacrificial bond bearing polymers, (2) describing the mechanisms of sacrificial bonds in strengthening/toughening polymers based on studies by single-molecule force spectroscopy, chromophore incorporation and constitutive laws, (3) presenting synthesis methods for sacrificial bonding including dual-crosslink, dual/multiple-network, and sacrificial interfaces, (4) discussing the important advances in engineering sacrificial bonding into hydrogels, biomimetic structures and elastomers, and (5) suggesting future works on molecular simulation, viscoelasticity, construction of sacrificial interfaces and sacrificial bonds with high dissociative temperature. It is hoped that this review will provide guidance for further development of sacrificial bonding strategies in polymeric materials.
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Affiliation(s)
- Xinxin Zhou
- State Key Laboratory of Organic-inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
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25
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Cai C, Zhang Y, Li M, Chen Y, Zhang R, Wang X, Wu Q, Chen T, Sun P. Multiple-responsive shape memory polyacrylonitrile/graphene nanocomposites with rapid self-healing and recycling properties. RSC Adv 2018; 8:1225-1231. [PMID: 35540906 PMCID: PMC9076983 DOI: 10.1039/c7ra11484b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 12/19/2017] [Indexed: 11/21/2022] Open
Abstract
It still remains a great challenge to endow polymer materials with multiple superior material properties by precise molecular design. Herein, we report a Diels-Alder (DA) based crosslinked polyacrylonitrile/graphene nanocomposite (PAN-DA/GR), which has multiple-responsive properties of shape memory, self-healing, and reprocessing in addition to enhanced mechanical properties. The graphene sheets, which are well dispersed in the DA-based crosslinked PAN network, can act as intrinsic localized thermal sources by converting the absorbed external IR/microwave energies into heat, to trigger the glass transition for elasticity-based shape memory properties and retro-DA (rDA) reactions for healing. The incorporation of Diels-Alder bonds also gives the material solid state plasticity through topological network rearrangement, thus leading to versatile shape adaptability. Moreover, both regional shape control and targeted self-healing of the nanocomposites can be simply achieved by IR laser irradiation. Besides, the incorporation of a small amount of graphene can significantly improve the mechanical strength with respect to the DA-based crosslinked PAN. Both DSC and in situ variable temperature 13C solid-state NMR experiments were used to monitor the reversible DA reactions.
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Affiliation(s)
- Chenting Cai
- Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University Tianjin 300071 China
| | - Yue Zhang
- Department of Polymer Science and Engineering, Nanjing University Nanjing 210093 China
| | - Mei Li
- Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University Tianjin 300071 China
| | - Yan Chen
- Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University Tianjin 300071 China
| | - Rongchun Zhang
- State Key Laboratory of Medicinal Chemical Biology, Nankai University Tianjin 300071 P. R. China
| | - Xiaoliang Wang
- Department of Polymer Science and Engineering, Nanjing University Nanjing 210093 China
| | - Qiang Wu
- Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University Tianjin 300071 China
| | - Tiehong Chen
- Institute of New Catalytic Materials Science, School of Materials Science and Engineering, Key Laboratory of Advanced Energy Materials Chemistry (MOE), Nankai University Tianjin 300350 P. R. China
| | - Pingchuan Sun
- Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University Tianjin 300071 China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University Tianjin 300071 P. R. China
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26
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Feng Y, Zhang YY, Li K, Tian N, Wang WB, Zhou QX, Wang XS. Photocleavable antimicrobial peptide mimics for precluding antibiotic resistance. NEW J CHEM 2018. [DOI: 10.1039/c8nj00015h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
UV-cleavable antimicrobial peptide mimics were synthesized to address environmental accumulation issues.
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Affiliation(s)
- Yang Feng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Yang-Yang Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Ke Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Na Tian
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Wei-Bo Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Qian-Xiong Zhou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Xue-Song Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
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27
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Song P, Xu Z, Dargusch MS, Chen ZG, Wang H, Guo Q. Granular Nanostructure: A Facile Biomimetic Strategy for the Design of Supertough Polymeric Materials with High Ductility and Strength. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1704661. [PMID: 29068548 DOI: 10.1002/adma.201704661] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 09/13/2017] [Indexed: 05/26/2023]
Abstract
The realization of high strength, large ductility, and great toughness for polymeric materials is a vital factor for practical applications in industry. Unfortunately, until now this remains a huge challenge due to the common opposing trends that exist when promoting improvements in these properties using materials design strategies. In the natural world, the cuticle of mussel byssus exhibits a breaking strain as high as 100%, which is revealed to arise from an architectural granular microphase-separated structure within the protein matrix. Herein, a facile biomimetic designed granular nanostructured polymer film is reported. Such biomimetic nanostructured polymer films show a world-record toughness of 122 (± 6.1) J g-1 as compared with other polyvinyl alcohol films, with a breaking strain as high as 205% and a high tensile strength of 91.2 MPa, which is much superior to those of most engineering plastics. This portfolio of outstanding properties can be attributed to the unique nanoscale granular phase-separated structure of this material. These biomimetic designed polymer films are expected to find promising applications in tissue engineering and biomaterials fields, such as artificial skin and tendon, which opens up an innovative methodology for the design of robust polymer materials for a range of innovative future applications.
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Affiliation(s)
- Pingan Song
- Department of Materials, Zhejiang A&F University, Hangzhou, 311300, China
- Centre for Future Materials, The University of Southern Queensland, Springfield, QLD, 4300, Australia
| | - Zhiguang Xu
- China-Australia Institute for Advanced Materials and Manufacture, Jiaxing University, Jiaxing, 314000, China
| | - Matthew S Dargusch
- Materials Engineering, The University of Queensland, Brisbane, QLD, 4072, Australia
- Centre for Advanced Materials Processing and Manufacturing, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Zhi-Gang Chen
- Centre for Future Materials, The University of Southern Queensland, Springfield, QLD, 4300, Australia
- Materials Engineering, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Hao Wang
- Centre for Future Materials, The University of Southern Queensland, Springfield, QLD, 4300, Australia
| | - Qipeng Guo
- Polymers Research Group, Institute for Frontier Materials, Deakin University, Locked Bag 20000, Geelong, VIC, 3220, Australia
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28
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Deng G, Cavicchi KA. Tuning the Viscoelastic Properties of Poly(n-butyl acrylate) Ionomer Networks through the Use of Ion-Pair Comonomers. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01529] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Guodong Deng
- Department of Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Kevin A. Cavicchi
- Department of Polymer Engineering, University of Akron, Akron, Ohio 44325, United States
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29
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Zou X, Kui X, Zhang R, Zhang Y, Wang X, Wu Q, Chen T, Sun P. Viscoelasticity and Structures in Chemically and Physically Dual-Cross-Linked Hydrogels: Insights from Rheology and Proton Multiple-Quantum NMR Spectroscopy. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01854] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Xueting Zou
- Key
Laboratory of Functional Polymer Materials of Ministry of Education
and College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Xing Kui
- Department
of Polymer Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Rongchun Zhang
- State
Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, P. R. China
| | - Yue Zhang
- Department
of Polymer Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Xiaoliang Wang
- Department
of Polymer Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Qiang Wu
- Key
Laboratory of Functional Polymer Materials of Ministry of Education
and College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Tiehong Chen
- Institute
of New Catalytic Materials Science, School of Materials Science and
Engineering, Key Laboratory of Advanced Energy Materials Chemistry
(MOE), Nankai University, Tianjin 300350, P. R. China
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, P. R. China
| | - Pingchuan Sun
- Key
Laboratory of Functional Polymer Materials of Ministry of Education
and College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- State
Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, P. R. China
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, P. R. China
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30
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Montero de Espinosa L, Meesorn W, Moatsou D, Weder C. Bioinspired Polymer Systems with Stimuli-Responsive Mechanical Properties. Chem Rev 2017; 117:12851-12892. [DOI: 10.1021/acs.chemrev.7b00168] [Citation(s) in RCA: 228] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
| | - Worarin Meesorn
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Dafni Moatsou
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Christoph Weder
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
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31
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32
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Tian D, Li T, Zhang R, Wu Q, Chen T, Sun P, Ramamoorthy A. Conformations and Intermolecular Interactions in Cellulose/Silk Fibroin Blend Films: A Solid-State NMR Perspective. J Phys Chem B 2017; 121:6108-6116. [DOI: 10.1021/acs.jpcb.7b02838] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Donglin Tian
- Key
Laboratory of Functional Polymer Materials of Ministry of Education
and College of chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Tao Li
- Key
Laboratory of Functional Polymer Materials of Ministry of Education
and College of chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Rongchun Zhang
- State
Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, P. R. China
| | - Qiang Wu
- Key
Laboratory of Functional Polymer Materials of Ministry of Education
and College of chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Tiehong Chen
- Institute
of New Catalytic Materials Science, School of Materials Science and
Engineering, Key Laboratory of Advanced Energy Materials Chemistry
(MOE), Nankai University, Tianjin 300350, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, P. R. China
| | - Pingchuan Sun
- Key
Laboratory of Functional Polymer Materials of Ministry of Education
and College of chemistry, Nankai University, Tianjin 300071, P. R. China
- State
Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, P. R. China
| | - Ayyalusamy Ramamoorthy
- Biophysics
Program and Department of Chemistry, The University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, United States
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33
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Levy A, Wang F, Lang A, Galant O, Diesendruck CE. Intramolecular Cross-Linking: Addressing Mechanochemistry with a Bioinspired Approach. Angew Chem Int Ed Engl 2017; 56:6431-6434. [DOI: 10.1002/anie.201612242] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 03/30/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Avishai Levy
- Schulich Faculty of Chemistry and Russell-Berrie Nanotechnology Center; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Feng Wang
- Schulich Faculty of Chemistry and Russell-Berrie Nanotechnology Center; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Arad Lang
- Schulich Faculty of Chemistry and Russell-Berrie Nanotechnology Center; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Or Galant
- Schulich Faculty of Chemistry and Russell-Berrie Nanotechnology Center; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Charles E. Diesendruck
- Schulich Faculty of Chemistry and Russell-Berrie Nanotechnology Center; Technion-Israel Institute of Technology; Haifa 32000 Israel
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34
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Levy A, Wang F, Lang A, Galant O, Diesendruck CE. Intramolecular Cross-Linking: Addressing Mechanochemistry with a Bioinspired Approach. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612242] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Avishai Levy
- Schulich Faculty of Chemistry and Russell-Berrie Nanotechnology Center; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Feng Wang
- Schulich Faculty of Chemistry and Russell-Berrie Nanotechnology Center; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Arad Lang
- Schulich Faculty of Chemistry and Russell-Berrie Nanotechnology Center; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Or Galant
- Schulich Faculty of Chemistry and Russell-Berrie Nanotechnology Center; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Charles E. Diesendruck
- Schulich Faculty of Chemistry and Russell-Berrie Nanotechnology Center; Technion-Israel Institute of Technology; Haifa 32000 Israel
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35
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Zhu F, Cheng L, Wang ZJ, Hong W, Wu ZL, Yin J, Qian J, Zheng Q. 3D-Printed Ultratough Hydrogel Structures with Titin-like Domains. ACS APPLIED MATERIALS & INTERFACES 2017; 9:11363-11367. [PMID: 28317377 DOI: 10.1021/acsami.7b02007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Titin is composed of repeated modular domains which unfold and dissipate energy upon loading. Here we employed such molecular-level paradigm to fabricate macroscopic ultratough hydrogel structures with titin-like domains, enabled by three-dimensional printing with multiple nozzles. Under stretch, the relatively thin and weak gel fibers in the printed structures break first and the hidden lengths postpone the failure of the main structures, mimicking the toughening principle in titin. These titin-like folded domains have been incorporated into a synthetic spider-web, which shows significantly enhanced extensibility and toughness. This work provides a new avenue of topological design for materials/structures with desired properties.
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Affiliation(s)
- Fengbo Zhu
- Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Department of Engineering Mechanics, Zhejiang University , Hangzhou 310027, China
| | - Libo Cheng
- The State Key Laboratory of Fluid Power Transmission and Control Systems, Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University , Hangzhou 310028, China
| | - Zhi Jian Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou, 310027, China
| | - Wei Hong
- Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Department of Engineering Mechanics, Zhejiang University , Hangzhou 310027, China
- Department of Aerospace Engineering, Iowa State University , Ames, Iowa 50010, United States
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education, Hokkaido University , Sapporo 060-0810, Japan
| | - Zi Liang Wu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou, 310027, China
| | - Jun Yin
- The State Key Laboratory of Fluid Power Transmission and Control Systems, Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University , Hangzhou 310028, China
| | - Jin Qian
- Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province, Department of Engineering Mechanics, Zhejiang University , Hangzhou 310027, China
| | - Qiang Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University , Hangzhou, 310027, China
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36
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Xu G, Huang Z, Chen P, Cui T, Zhang X, Miao B, Yan LT. Optimal Reactivity and Improved Self-Healing Capability of Structurally Dynamic Polymers Grafted on Janus Nanoparticles Governed by Chain Stiffness and Spatial Organization. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1603155. [PMID: 28092430 DOI: 10.1002/smll.201603155] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 11/04/2016] [Indexed: 06/06/2023]
Abstract
Structurally dynamic polymers are recognized as a key potential to revolutionize technologies ranging from design of self-healing materials to numerous biomedical applications. Despite intense research in this area, optimizing reactivity and thereby improving self-healing ability at the most fundamental level pose urgent issue for wider applications of such emerging materials. Here, the authors report the first mechanistic investigation of the fundamental principle for the dependence of reactivity and self-healing capabilities on the properties inherent to dynamic polymers by combining large-scale computer simulation, theoretical analysis, and experimental discussion. The results allow to reveal how chain stiffness and spatial organization regulate reactivity of dynamic polymers grafted on Janus nanoparticles and mechanically mediated reaction in their reverse chemistry, and, particularly, identify that semiflexible dynamic polymers possess the optimal reactivity and self-healing ability. The authors also develop an analytical model of blob theory of polymer chains to complement the simulation results and reveal essential scaling laws for optimal reactivity. The findings offer new insights into the physical mechanism in various systems involving reverse/dynamic chemistry. These studies highlight molecular engineering of polymer architecture and intrinsic property as a versatile strategy in control over the structural responses and functionalities of emerging materials with optimized self-healing capabilities.
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Affiliation(s)
- Guoxi Xu
- Advanced Materials Laboratory, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Zihan Huang
- Advanced Materials Laboratory, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Pengyu Chen
- Advanced Materials Laboratory, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Tianqi Cui
- Advanced Materials Laboratory, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Xinghua Zhang
- School of Science, Beijing Jiaotong University, Beijing, 100044, China
| | - Bing Miao
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Li-Tang Yan
- Advanced Materials Laboratory, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
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37
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Myllymäki TTT, Lemetti L, Nonappa, Ikkala O. Hierarchical Supramolecular Cross-Linking of Polymers for Biomimetic Fracture Energy Dissipating Sacrificial Bonds and Defect Tolerance under Mechanical Loading. ACS Macro Lett 2017; 6:210-214. [PMID: 35650915 DOI: 10.1021/acsmacrolett.7b00011] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Biological structural materials offer fascinating models how to synergistically increase the solid-state defect tolerance, toughness, and strength using nanocomposite structures by incorporating different levels of supramolecular sacrificial bonds to dissipate fracture energy. Inspired thereof, we show how to turn a commodity acrylate polymer, characteristically showing a brittle solid state fracture, to become defect tolerant manifesting noncatastrophic crack propagation by incorporation of different levels of fracture energy dissipating supramolecular interactions. Therein, poly(2-hydroxyethyl methacrylate) (pHEMA) is a feasible model polymer showing brittle solid state fracture in spite of a high maximum strain and clear yielding, where the weak hydroxyl group mediated hydrogen bonds do not suffice to dissipate fracture energy. We provide the next level stronger supramolecular interactions toward solid-state networks by postfunctionalizing a minor part of the HEMA repeat units using 2-ureido-4[1H]-pyrimidinone (UPy), capable of forming four strong parallel hydrogen bonds. Interestingly, such a polymer, denoted here as p(HEMA-co-UPyMA), shows toughening by suppressed catastrophic crack propagation, even if the strength and stiffness are synergistically increased. At the still higher hierarchical level, colloidal level cross-linking using oxidized carbon nanotubes with hydrogen bonding surface decorations, including UPy, COOH, and OH groups, leads to further increased stiffness and ultimate strength, still leading to suppressed catastrophic crack propagation. The findings suggest to incorporate a hierarchy of supramolecular groups of different interactions strengths upon pursuing toward biomimetic toughening.
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Affiliation(s)
- Teemu T. T. Myllymäki
- Department
of Applied Physics, Aalto University, P.O. Box 15100, FI-00076 Aalto, Finland
| | - Laura Lemetti
- School
of Chemical Technology, Aalto University, P.O. Box 16100, FI-00076 Aalto, Finland
| | - Nonappa
- Department
of Applied Physics, Aalto University, P.O. Box 15100, FI-00076 Aalto, Finland
| | - Olli Ikkala
- Department
of Applied Physics, Aalto University, P.O. Box 15100, FI-00076 Aalto, Finland
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38
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Liu J, Tan CSY, Yu Z, Lan Y, Abell C, Scherman OA. Biomimetic Supramolecular Polymer Networks Exhibiting both Toughness and Self-Recovery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1604951. [PMID: 28092128 DOI: 10.1002/adma.201604951] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 11/17/2016] [Indexed: 05/27/2023]
Abstract
Biomimetic supramolecular dual networks: By mimicking the structure/function model of titin, integration of dynamic cucurbit[8]uril mediated host-guest interactions with a trace amount of covalent cross-linking leads to hierarchical dual networks with intriguing toughness, strength, elasticity, and energy dissipation properties. Dynamic host-guest interactions can be dissociated as sacrificial bonds and their facile reformation results in self-recovery of the dual network structure as well as its mechanical properties.
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Affiliation(s)
- Ji Liu
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Cindy Soo Yun Tan
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
- Faculty of Applied Sciences, Universiti Teknologi MARA, 94300, Kota Samarahan, Sarawak, Malaysia
| | - Ziyi Yu
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Yang Lan
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Chris Abell
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Oren A Scherman
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
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39
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Pill MF, Holz K, Preußke N, Berger F, Clausen-Schaumann H, Lüning U, Beyer MK. Mechanochemical Cycloreversion of Cyclobutane Observed at the Single Molecule Level. Chemistry 2016; 22:12034-9. [PMID: 27415146 DOI: 10.1002/chem.201600866] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Indexed: 11/12/2022]
Abstract
Mechanochemical cycloreversion of cyclobutane is known from ultrasound experiments. It is, however, not clear which forces are required to induce the cycloreversion. In atomic force microscopy (AFM) experiments, on the other hand, it is notoriously difficult to assign the ruptured bond. We have solved this problem through the synthesis of tailored macrocycles, in which the cyclobutane mechanophore is bypassed by an ethylene glycol chain of specific length. This macrocycle is covalently anchored between a glass substrate and an AFM cantilever by polyethylene glycol linkers. Upon mechanical stretching of the macrocycle, cycloreversion occurs, which is identified by a defined length increase of the stretched polymer. The measured length change agrees with the value calculated with the external force explicitly included (EFEI) method. By using two different lengths for the ethylene glycol safety line, the assignment becomes unambiguous. Mechanochemical cycloreversion of cyclobutane is observed at forces above 1.7 nN.
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Affiliation(s)
- Michael F Pill
- Department of Applied Natural Sciences and Mechatronics, Munich University of Applied Sciences, Lothstraße 34, 80335, Munich, Germany.,Center for Nanoscience (CeNS), Geschwister-Scholl-Platz 1, Munich, Germany
| | - Katharina Holz
- Otto-Diels-Institut für Organische Chemie, Christian-Albrechts-Universität zu Kiel, Olshausenstraße 40, 24098, Kiel, Germany
| | - Nils Preußke
- Otto-Diels-Institut für Organische Chemie, Christian-Albrechts-Universität zu Kiel, Olshausenstraße 40, 24098, Kiel, Germany
| | - Florian Berger
- Institut für Ionenphysik und Angewandte Physik, Leopold-Franzens-Universität Innsbruck, Technikerstraße 25, 6020, Innsbruck, Austria
| | - Hauke Clausen-Schaumann
- Department of Applied Natural Sciences and Mechatronics, Munich University of Applied Sciences, Lothstraße 34, 80335, Munich, Germany.,Center for Nanoscience (CeNS), Geschwister-Scholl-Platz 1, Munich, Germany
| | - Ulrich Lüning
- Otto-Diels-Institut für Organische Chemie, Christian-Albrechts-Universität zu Kiel, Olshausenstraße 40, 24098, Kiel, Germany.
| | - Martin K Beyer
- Institut für Ionenphysik und Angewandte Physik, Leopold-Franzens-Universität Innsbruck, Technikerstraße 25, 6020, Innsbruck, Austria.
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40
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Bao J, Chang X, Shan G, Bao Y, Pan P. Synthesis of end-functionalized hydrogen-bonding poly(lactic acid)s and preferential stereocomplex crystallization of their enantiomeric blends. Polym Chem 2016. [DOI: 10.1039/c6py00976j] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel UPy-functionalized alcohol was synthesized and used to initiate the solvent-free ROP of lactide to attain UPy-functionalized PLLA and PDLA. The crystallization rate and stereocomplexation ability of UPy-functionalized PLLA/PDLA blends were promoted.
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Affiliation(s)
- Jianna Bao
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiaohua Chang
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Guorong Shan
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Yongzhong Bao
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
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41
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Hendrich M, Lewerdomski L, Vana P. Biomimetic triblock and multiblock copolymers containing l
-Phenylalanine moieties showing healing and enhanced mechanical properties. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27753] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Michael Hendrich
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen; Tammannstr 6 D-37077 Göttingen Germany
| | - Lars Lewerdomski
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen; Tammannstr 6 D-37077 Göttingen Germany
| | - Philipp Vana
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen; Tammannstr 6 D-37077 Göttingen Germany
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42
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Hosono N, Kushner AM, Chung J, Palmans ARA, Guan Z, Meijer EW. Forced Unfolding of Single-Chain Polymeric Nanoparticles. J Am Chem Soc 2015; 137:6880-8. [DOI: 10.1021/jacs.5b02967] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nobuhiko Hosono
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Department
of Chemistry, University of California, 1102 Natural Sciences 2, Irvine, California 92697, United States
| | - Aaron M. Kushner
- Department
of Chemistry, University of California, 1102 Natural Sciences 2, Irvine, California 92697, United States
| | - Jaeyoon Chung
- Department
of Chemistry, University of California, 1102 Natural Sciences 2, Irvine, California 92697, United States
| | - Anja R. A. Palmans
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Zhibin Guan
- Department
of Chemistry, University of California, 1102 Natural Sciences 2, Irvine, California 92697, United States
| | - E. W. Meijer
- Institute
for Complex Molecular Systems and Laboratory of Macromolecular and
Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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43
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Haehnel AP, Sagara Y, Simon YC, Weder C. Mechanochemistry in Polymers with Supramolecular Mechanophores. Top Curr Chem (Cham) 2015; 369:345-75. [PMID: 26054388 DOI: 10.1007/128_2015_640] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Mechanochemistry is a burgeoning field of materials science. Inspired by nature, many scientists have looked at different ways to introduce weak bonds into polymeric materials to impart them with function and in particular mechano-responsiveness. In the following sections, the incorporation of some of the weakest bonds, i.e. non-covalent bonds, into polymeric solids is being surveyed. This review covers sequentially π-π interactions, H-bonding and metal-ligand coordination bonds and tries to highlight some of the advantages and limitations of such systems, while providing some key perspective of what may come next in this tantalizing field.
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Affiliation(s)
- Alexander P Haehnel
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Yoshimitsu Sagara
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland
| | - Yoan C Simon
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland.
| | - Christoph Weder
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland.
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44
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Schuetz JH, Wentao P, Vana P. Titin-mimicking polycyclic polymers with shape regeneration and healing properties. Polym Chem 2015. [DOI: 10.1039/c4py01458h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polycyclic polymers made from cyclic (ABC)n-multiblock-copolymers that may undergo self-complementary hydrogen bonds within the individual rings show extraordinary material properties.
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Affiliation(s)
- Jan-Hendrik Schuetz
- Institut für Physikalische Chemie
- Georg-August-Universität Göttingen
- D-37077 Göttingen
- Germany
| | - Peng Wentao
- Institut für Physikalische Chemie
- Georg-August-Universität Göttingen
- D-37077 Göttingen
- Germany
| | - Philipp Vana
- Institut für Physikalische Chemie
- Georg-August-Universität Göttingen
- D-37077 Göttingen
- Germany
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45
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Hydrogen Bonding in Supramolecular Polymer Networks: Glasses, Melts, and Elastomers. SUPRAMOLECULAR POLYMER NETWORKS AND GELS 2015. [DOI: 10.1007/978-3-319-15404-6_2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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46
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Saikia BJ, Dolui SK. Preparation and characterization of an azide–alkyne cycloaddition based self-healing system via a semiencapsulation method. RSC Adv 2015. [DOI: 10.1039/c5ra17666b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An azide–alkyne cycloaddition based self-healing system was designed by a semiencapsulation method.
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47
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Chung J, Kushner AM, Weisman AC, Guan Z. Direct correlation of single-molecule properties with bulk mechanical performance for the biomimetic design of polymers. NATURE MATERIALS 2014; 13:1055-1062. [PMID: 25262095 DOI: 10.1038/nmat4090] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 08/20/2014] [Indexed: 06/03/2023]
Abstract
For rational design of advanced polymeric materials, it is critical to establish a clear mechanistic link between the molecular structure of a polymer and the emergent bulk mechanical properties. Despite progress towards this goal, it remains a major challenge to directly correlate the bulk mechanical performance to the nanomechanical properties of individual constituent macromolecules. Here, we show a direct correlation between the single-molecule nanomechanical properties of a biomimetic modular polymer and the mechanical characteristics of the resulting bulk material. The multi-cyclic single-molecule force spectroscopy (SMFS) data enabled quantitative derivation of the asymmetric potential energy profile of individual module rupture and re-folding, in which a steep dissociative pathway accounted for the high plateau modulus, while a shallow associative well explained the energy-dissipative hysteresis and dynamic, adaptive recovery. These results demonstrate the potential for SMFS to serve as a guide for future rational design of advanced multifunctional materials.
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Affiliation(s)
- Jaeyoon Chung
- Department of Chemistry, 1102 Natural Sciences 2, University of California, Irvine, California 92697-2025, USA
| | - Aaron M Kushner
- Department of Chemistry, 1102 Natural Sciences 2, University of California, Irvine, California 92697-2025, USA
| | - Adam C Weisman
- Department of Chemistry, 1102 Natural Sciences 2, University of California, Irvine, California 92697-2025, USA
| | - Zhibin Guan
- Department of Chemistry, 1102 Natural Sciences 2, University of California, Irvine, California 92697-2025, USA
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48
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Zhang H, Chen Y, Lin Y, Fang X, Xu Y, Ruan Y, Weng W. Spiropyran as a Mechanochromic Probe in Dual Cross-Linked Elastomers. Macromolecules 2014. [DOI: 10.1021/ma500760p] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Huan Zhang
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Yinjun Chen
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Yangju Lin
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Xiuli Fang
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Yuanze Xu
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Yonghong Ruan
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Wengui Weng
- Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China
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49
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Monemian S, Jang KS, Ghassemi H, Korley LTJ. Probing the Interplay of Ultraviolet Cross-Linking and Noncovalent Interactions in Supramolecular Elastomers. Macromolecules 2014. [DOI: 10.1021/ma501183a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Seyedali Monemian
- Department of Macromolecular
Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, United States
| | - Keon-Soo Jang
- Department of Macromolecular
Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, United States
| | - Hossein Ghassemi
- Department of Macromolecular
Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, United States
| | - LaShanda T. J. Korley
- Department of Macromolecular
Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, United States
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50
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Chen Y, Zhang H, Fang X, Lin Y, Xu Y, Weng W. Mechanical Activation of Mechanophore Enhanced by Strong Hydrogen Bonding Interactions. ACS Macro Lett 2014; 3:141-145. [PMID: 35590494 DOI: 10.1021/mz400600r] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A mechanically active spiropyran (SP) mechanophore is incorporated into the backbone of prepolymer which is further end-capped with ureidopyrimidinone (UPy) or urethane. Strong mechanochromic reaction of SP arises in the bulk films of UPy containing materials whereas much weaker activation occurs in urethane containing counterparts, coincident with their stress-strain responses. The difference in the magnitudes of supramolecular interactions leads to different degrees of chain orientation and strain induced crystallization (SIC) in the bulk and consequently distinct capabilities to transfer the load to the mechanophores. This study may aid the design of novel mechanoresponsive materials whose mechanoresponsiveness can be tailored by tuning supramolecular interactions.
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Affiliation(s)
- Yinjun Chen
- Department
of Chemistry,
College of Chemistry and Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Huan Zhang
- Department
of Chemistry,
College of Chemistry and Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Xiuli Fang
- Department
of Chemistry,
College of Chemistry and Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Yangju Lin
- Department
of Chemistry,
College of Chemistry and Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Yuanze Xu
- Department
of Chemistry,
College of Chemistry and Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Wengui Weng
- Department
of Chemistry,
College of Chemistry and Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
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