1
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Lin YT, Liu S, Bhat B, Kuan KY, Zhou W, Cobos IJ, Kwon JSI, Akbulut MES. pH- and temperature-responsive supramolecular assemblies with highly adjustable viscoelasticity: a multi-stimuli binary system. SOFT MATTER 2023. [PMID: 37449660 DOI: 10.1039/d3sm00549f] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Stimuli-responsive materials are increasingly needed for the development of smart electronic, mechanical, and biological devices and systems relying on switchable, tunable, and adaptable properties. Herein, we report a novel pH- and temperature-responsive binary supramolecular assembly involving a long-chain hydroxyamino amide (HAA) and an inorganic hydrotrope, boric acid, with highly tunable viscous and viscoelastic properties. The system under investigation demonstrates a high degree of control over its viscosity, with the capacity to achieve over four orders of magnitude of control through the concomitant manipulation of pH and temperature. In addition, the transformation from non-Maxwellian to Maxwellian fluid behavior could also be induced by changing the pH and temperature. Switchable rheological properties were ascribed to the morphological transformation between spherical vesicles, aggregated/fused spherical vesicles, and bicontinuous gyroid structures revealed by cryo-TEM studies. The observed transitions are attributed to the modulation of the head group spacing between HAA molecules under different pH conditions. Specifically, acidic conditions induce electrostatic repulsion between the protonated amino head groups, leading to an increased spacing. Conversely, under basic conditions, the HAA head group spacing is reduced due to the intercalation of tetrahydroxyborate, facilitated by hydrogen bonding.
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Affiliation(s)
- Yu-Ting Lin
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA.
| | - Shuhao Liu
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA.
| | - Bhargavi Bhat
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA.
| | - Kai-Yuan Kuan
- Department of Chemistry, Texas A&M University, College Station, TX 77843, USA
| | - Wentao Zhou
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA.
| | - Ignacio Jose Cobos
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA.
| | - Joseph Sang-Il Kwon
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA.
- Texas A&M Energy Institute, College Station, TX 77843, USA
| | - Mustafa E S Akbulut
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA.
- Texas A&M Energy Institute, College Station, TX 77843, USA
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA
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2
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Brás AR, Arizaga A, Sokolova D, Agirre U, Viciosa MT, Radulescu A, Prévost SF, Kruteva M, Pyckhout-Hintzen W, Schmidt AM. Influence of Polymer Polarity and Association Strength on the Properties of Poly(alkyl ether)-Based Supramolecular Melts. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Ana Rita Brás
- Institute of Physical Chemistry, University of Cologne, 50939Cologne, Germany
| | - Ana Arizaga
- Institute of Physical Chemistry, University of Cologne, 50939Cologne, Germany
| | - Daria Sokolova
- Institute of Physical Chemistry, University of Cologne, 50939Cologne, Germany
- Chemistry Department, University of Basel, BPR 1096/4058Basel, Schweiz
| | - Uxue Agirre
- Institute of Physical Chemistry, University of Cologne, 50939Cologne, Germany
| | - Maria Teresa Viciosa
- IN − Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, University of Lisbon, Avenida Rovisco Pais, 1049-001Lisbon, Portugal
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, University of Lisbon, Avenida Rovisco Pais, 1049-001, Lisbon, Portugal
| | - Aurel Radulescu
- Jülich Centre for Neutron Science (JCNS-1), Forschungszentrum Jülich GmbH, 52428Jülich, Germany
| | | | - Margarita Kruteva
- Jülich Centre for Neutron Science (JCNS-1), Forschungszentrum Jülich GmbH, 52428Jülich, Germany
| | - Wim Pyckhout-Hintzen
- Jülich Centre for Neutron Science (JCNS-1), Forschungszentrum Jülich GmbH, 52428Jülich, Germany
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3
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Ouyang X, Luo J, Liu G. Effects of entanglement and dispersity on shear strain hardening. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Ahmadi M, Jangizehi A, Seiffert S. Backbone Polarity Tunes Sticker Clustering in Hydrogen-Bonded Supramolecular Polymer Networks. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00645] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mostafa Ahmadi
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Amir Jangizehi
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Sebastian Seiffert
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
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5
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Ge S, Samanta S, Li B, Carden GP, Cao PF, Sokolov AP. Unravelling the Mechanism of Viscoelasticity in Polymers with Phase-Separated Dynamic Bonds. ACS NANO 2022; 16:4746-4755. [PMID: 35234439 DOI: 10.1021/acsnano.2c00046] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Incorporation of dynamic (reversible) bonds within polymer structure enables properties such as self-healing, shape transformation, and recyclability. These dynamic bonds, sometimes refer as stickers, can form clusters by phase-segregation from the polymer matrix. These systems can exhibit interesting viscoelastic properties with an unusually high and extremely long rubbery plateau. Understanding how viscoelastic properties of these materials are controlled by the hierarchical structure is crucial for engineering of recyclable materials for various future applications. Here we studied such systems made from short telechelic polydimethylsiloxane chains by employing a broad range of experimental techniques. We demonstrate that formation of a percolated network of interfacial layers surrounding clusters enhances mechanical modulus in these phase-separated systems, whereas single chain hopping between the clusters results in macroscopic flow. On the basis of the results, we formulated a general scenario describing viscoelastic properties of phase-separated dynamic polymers, which will foster development of recyclable materials with tunable rheological properties.
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Affiliation(s)
- Sirui Ge
- Department of Material Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Subarna Samanta
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Bingrui Li
- The Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - G Peyton Carden
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Peng-Fei Cao
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Alexei P Sokolov
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
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6
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Hong W, Lin J, Tian X, Wang L. Linear and nonlinear viscoelasticity of self-associative hydrogen-bonded polymers. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Ghiassinejad S, Mortensen K, Rostamitabar M, Malineni J, Fustin CA, van Ruymbeke E. Dynamics and Structure of Metallo-supramolecular Polymers Based on Short Telechelic Precursors. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00373] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Sina Ghiassinejad
- Bio and Soft Matter Division, Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
| | - Kell Mortensen
- Niels Bohr Institute, University of Copenhagen, 1165 Copenhagen, Denmark
| | - Matin Rostamitabar
- Bio and Soft Matter Division, Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
| | - Jagadeesh Malineni
- Bio and Soft Matter Division, Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
| | - Charles-André Fustin
- Bio and Soft Matter Division, Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
| | - Evelyne van Ruymbeke
- Bio and Soft Matter Division, Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
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8
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Ge S, Samanta S, Tress M, Li B, Xing K, Dieudonné-George P, Genix AC, Cao PF, Dadmun M, Sokolov AP. Critical Role of the Interfacial Layer in Associating Polymers with Microphase Separation. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00275] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sirui Ge
- Department of Material Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Subarna Samanta
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Martin Tress
- Peter Debye Institute for Soft Matter Physics, Leipzig University, Leipzig 04103, Germany
| | - Bingrui Li
- The Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Kunyue Xing
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | | | - Anne-Caroline Genix
- Laboratoire Charles Coulomb (L2C), Université de Montpellier, CNRS, F-34095 Montpellier, France
| | - Peng-Fei Cao
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Mark Dadmun
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Alexei P. Sokolov
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
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9
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Soszka N, Hachuła B, Tarnacka M, Kaminska E, Pawlus S, Kaminski K, Paluch M. Is a Dissociation Process Underlying the Molecular Origin of the Debye Process in Monohydroxy Alcohols? J Phys Chem B 2021; 125:2960-2967. [PMID: 33691402 PMCID: PMC8041310 DOI: 10.1021/acs.jpcb.0c10970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/25/2021] [Indexed: 11/29/2022]
Abstract
Herein, we investigated the molecular dynamics as well as intramolecular interactions in two primary monohydroxy alcohols (MA), 2-ethyl-1-hexanol (2EHOH) and n-butanol (nBOH), by means of broad-band dielectric (BDS) and Fourier transform infrared (FTIR) spectroscopy. The modeling data obtained from dielectric studies within the Rubinstein approach [ Macromolecules 2013, 46, 7525-7541] originally developed to describe the dynamical properties of self-assembling macromolecules allowed us to calculate the energy barrier (Ea) of dissociation from the temperature dependences of relaxation times of Debye and structural processes. We found Ea ∼ 19.4 ± 0.8 and 5.3 ± 0.4 kJ/mol for the former and latter systems, respectively. On the other hand, FTIR data analyzed within the van't Hoff relationship yielded the energy barriers for dissociation Ea ∼ 20.3 ± 2.1 and 12.4 ± 1.6 kJ/mol for 2EHOH and nBOH, respectively. Hence, there was almost a perfect agreement between the values of Ea estimated from dielectric and FTIR studies for the 2EHOH, while some notable discrepancy was noted for the second alcohol. A quite significant difference in the activation barrier of dissociation indicates that there are probably supramolecular clusters of varying geometry or a ring-chain-like equilibrium is strongly affected in both alcohols. Nevertheless, our analysis showed that the association/dissociation processes undergoing within nanoassociates are one of the main factors underlying the molecular origin of the Debye process, supporting the transient chain model.
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Affiliation(s)
- N. Soszka
- Institute
of Chemistry, University of Silesia in Katowice, Szkolna 9, 40-006 Katowice, Poland
- August
Chełkowski Institute of Physics, University
of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
| | - B. Hachuła
- Institute
of Chemistry, University of Silesia in Katowice, Szkolna 9, 40-006 Katowice, Poland
- Silesian
Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - M. Tarnacka
- August
Chełkowski Institute of Physics, University
of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian
Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - E. Kaminska
- Department
of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences
in Sosnowiec, Medical University of Silesia
in Katowice, ul. Jagiellońska 4, 41-200 Sosnowiec, Poland
| | - S. Pawlus
- August
Chełkowski Institute of Physics, University
of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian
Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - K. Kaminski
- August
Chełkowski Institute of Physics, University
of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian
Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - M. Paluch
- August
Chełkowski Institute of Physics, University
of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland
- Silesian
Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
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10
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Lopez Hernandez H, Souza JW, Appel EA. A Quantitative Description for Designing the Extrudability of Shear-Thinning Physical Hydrogels. Macromol Biosci 2020; 21:e2000295. [PMID: 33164332 DOI: 10.1002/mabi.202000295] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/19/2020] [Indexed: 12/12/2022]
Abstract
Physically associated hydrogels (PHs) capable of reversible transitions between solid and liquid-like states have enabled novel strategies for 3D printing, therapeutic drug and cell delivery, and regenerative medicine. Among the many design criteria (e.g., viscoelasticity, cargo diffusivity, biocompatibility) for these applications, engineering PHs for extrudability is a necessary and critical design criterion for the successful application of these materials. As the development of many distinct PH material systems continues, a strategy to determine the extrudability of PHs a priori will be exceedingly useful for reducing costly and time-consuming trial-and-error experimentation. Here, a strategy to determine the property-function relationships for PHs in injectable drug delivery applications at clinically relevant flow rates is presented. This strategy-validated with two chemically and physically distinct PHs-reveals material design spaces in the form of Ashby-style plots that highlight acceptable, application-specific material properties. It is shown that the flow behavior of PHs does not obey a single shear-thinning power law and the implications for injectable drug delivery are discussed. This approach for generating design criteria has potential for streamlining the screening of PHs and their utility in applications with varying geometrical (i.e., needle diameter) and process (i.e., flow rate) constraints.
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Affiliation(s)
| | - Jason W Souza
- Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Eric A Appel
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA.,ChEM-H Institute, Stanford University, Stanford, CA, 94305, USA
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11
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Falco G, Griffiths P, Coutouly C, Fustin CA, Baeza GP. Supramolecular Superparamagnetic Nanocomposites Based on a Magnetite-Filled Unentangled Terpyridine-Functionalized Polymer. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00182] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guillaume Falco
- Univ Lyon, INSA-Lyon, CNRS, MATEIS, UMR 5510, 7 Avenue Jean Capelle, F-69621 Villeurbanne, France
| | - Pablo Griffiths
- Univ Lyon, INSA-Lyon, CNRS, MATEIS, UMR 5510, 7 Avenue Jean Capelle, F-69621 Villeurbanne, France
| | - Clément Coutouly
- Institute of Condensed Matter and Nanosciences (IMCN), Bio and Soft Matter Division (BSMA), Université catholique de Louvain, Place Louis
Pasteur 1, B-1348 Louvain-la-Neuve, Belgium
| | - Charles-André Fustin
- Institute of Condensed Matter and Nanosciences (IMCN), Bio and Soft Matter Division (BSMA), Université catholique de Louvain, Place Louis
Pasteur 1, B-1348 Louvain-la-Neuve, Belgium
| | - Guilhem P. Baeza
- Univ Lyon, INSA-Lyon, CNRS, MATEIS, UMR 5510, 7 Avenue Jean Capelle, F-69621 Villeurbanne, France
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12
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Ge S, Tress M, Xing K, Cao PF, Saito T, Sokolov AP. Viscoelasticity in associating oligomers and polymers: experimental test of the bond lifetime renormalization model. SOFT MATTER 2020; 16:390-401. [PMID: 31840152 DOI: 10.1039/c9sm01930h] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Recent findings that the association bond lifetimes τα* in associating polymers diverge from their supramolecular network relaxation times τc challenge past theories. The bond lifetime renormalization proposed by Rubinstein and coworkers [Stukalin et al., Macromolecules, 2013, 46, 7525] provides a promising explanation. To examine systematically its applicability, we employ shear rheology and dielectric spectroscopy to study telechelic associating polymers with different main chain (polypropylene glycol and polydimethylsiloxane), molecular weight (below entanglement molecular weight) and end groups (amide, and carboxylic acid) which form dimeric associations by hydrogen bonding. The separation between τc (probed by rheology) and τα* (probed by dielectric spectroscopy) strongly increases with chain length as qualitatively predicted by the model. However, to describe the increase quantitatively, a transition from Rouse to reptation dynamics must be assumed. This suggests that dynamics of super-chains must be considered to properly describe the transient network.
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Affiliation(s)
- Sirui Ge
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Knoxville, Tennessee 37996, USA
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13
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Golkaram M, Loos K. A Critical Approach to Polymer Dynamics in Supramolecular Polymers. Macromolecules 2019; 52:9427-9444. [PMID: 31894159 PMCID: PMC6933822 DOI: 10.1021/acs.macromol.9b02085] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/01/2019] [Indexed: 12/15/2022]
Abstract
Over the past few years, the concurrent (1) development of polymer synthesis and (2) introduction of new mathematical models for polymer dynamics have evolved the classical framework for polymer dynamics once established by Doi-Edwards/de Gennes. Although the analysis of supramolecular polymer dynamics based on linear rheology has improved a lot recently, there are a large number of insecurities behind the conclusions, which originate from the complexity of these novel systems. The interdependent effect of supramolecular entities (stickers) and chain dynamics can be overwhelming depending on the type and location of stickers as well as the architecture and chemistry of polymers. This Perspective illustrates these parameters and strives to determine what is still missing and has to be improved in the future works.
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Affiliation(s)
- Milad Golkaram
- Macromolecular Chemistry
and New Polymeric Materials, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| | - Katja Loos
- Macromolecular Chemistry
and New Polymeric Materials, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
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14
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Tress M, Xing K, Ge S, Cao P, Saito T, Sokolov A. What dielectric spectroscopy can tell us about supramolecular networks ⋆. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2019; 42:133. [PMID: 31624934 DOI: 10.1140/epje/i2019-11897-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 09/13/2019] [Indexed: 06/10/2023]
Abstract
Polymers which can form supramolecular networks are a promising class of materials to provide highly sought-after properties such as self-healing, enhanced mechanical strength, super-stretchability as well as easy recyclability. However, due to the vast range of possible chemical structures it is very demanding to optimize these materials for the desired performance. Consequently, a detailed understanding of the molecular processes that govern the macroscopic properties is paramount to their technological application. Here we discuss some telechelic model systems with hydrogen-bonding end groups and how dielectric spectroscopy in combination with linear oscillatory shear rheology helped to understand the association mechanism on a molecular scale, and verify the model of bond-lifetime renormalization. Furthermore, we analyze a limitation of these H-bonding polymers, namely that there is a trade-off between high plateau modulus and long terminal relaxation time --both cannot be maximized at the same time. Finally, we show how more complex end groups phase separate from the main chain melt and thus lead to a more sophisticated rheological behavior which can overcome that limitation.
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Affiliation(s)
- Martin Tress
- Department of Chemistry, University of Tennessee, Knoxville, 37996, Knoxville, TN, USA.
| | - Kunyue Xing
- Department of Chemistry, University of Tennessee, Knoxville, 37996, Knoxville, TN, USA
| | - Sirui Ge
- Department of Materials Science, University of Tennessee, Knoxville, 37996, Knoxville, TN, USA
| | - Pengfei Cao
- Oak Ridge National Laboratory, Chemical Sciences Division, 37831, Oak Ridge, TN, USA
| | - Tomonori Saito
- Oak Ridge National Laboratory, Chemical Sciences Division, 37831, Oak Ridge, TN, USA
| | - Alexei Sokolov
- Department of Chemistry, University of Tennessee, Knoxville, 37996, Knoxville, TN, USA.
- Oak Ridge National Laboratory, Chemical Sciences Division, 37831, Oak Ridge, TN, USA.
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15
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Boothroyd SC, Hoyle DM, McLeish TCB, Munch E, Schach R, Smith AJ, Thompson RL. Association and relaxation of supra-macromolecular polymers. SOFT MATTER 2019; 15:5296-5307. [PMID: 31225548 DOI: 10.1039/c8sm02580k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This paper describes the structures created by assembling functionalised entangled polymers and the effect these have on the rheology of the material. A polybutadiene (PBd) linear polymer precursor of sufficient molecular weight to be entangled is used. This is end functionalised with the self-associating group 2-ureido-4pyrimidinone (UPy). Interestingly, despite the relatively high molecular weight of the precursor diluting the UPy concentration, the effect on the material's properties is significant. To characterise the assembled microstructure we present linear rheology, extensional non-linear rheology and small angle X-ray scattering (SAXS). The linear rheology shows that the functionalised PBd assembles into large macro-structures where the terminal relaxation time is up to seven orders of magnitude larger than the precursor. The non-linear rheology shows strain-hardening over a broad range of strain-rates. We then show by both SAXS and modelling of the extensional data that there must exist clusters of UPy associations and hence assembled polymers with branched architecture. By modelling the supra-molecular structure as an effective linear polymer, we show that this would be insufficient in predicting the strain-hardening behaviour at lower extension-rates. Therefore, in this flow regime the strain-hardening is likely to be caused by branching. This is backed up by SAXS measurements which show that UPy clusters larger than pair-pair groups exist.
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Affiliation(s)
- Stephen C Boothroyd
- Department of Chemistry, Durham University, Lower Mountjoy, South Road, Durham DH1 3LE, UK.
| | - David M Hoyle
- Department of Chemistry, Durham University, Lower Mountjoy, South Road, Durham DH1 3LE, UK.
| | - Thomas C B McLeish
- Department of Physics, University of York, Heslington, York YO10 5DD, UK
| | - Etienne Munch
- Manufacture Française des Pneumatiques Michelin, Centre de Technologies, 63040 Clermont Ferrand Cedex 9, France
| | - Regis Schach
- Manufacture Française des Pneumatiques Michelin, Centre de Technologies, 63040 Clermont Ferrand Cedex 9, France
| | - Andrew J Smith
- Diamond Light Source Ltd., Diamond House, Harwell Science and Innovation Campus, Didcot, UK
| | - Richard L Thompson
- Department of Chemistry, Durham University, Lower Mountjoy, South Road, Durham DH1 3LE, UK.
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16
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Ahmadi M, Jangizehi A, van Ruymbeke E, Seiffert S. Deconvolution of the Effects of Binary Associations and Collective Assemblies on the Rheological Properties of Entangled Side-Chain Supramolecular Polymer Networks. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00323] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Mostafa Ahmadi
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, 15875-4413 Tehran, Iran
- Institute of Physical Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Amir Jangizehi
- Institute of Physical Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 18, D-76131 Karlsruhe, Germany
| | - Evelyne van Ruymbeke
- Bio and Soft Matter, Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Croix du Sud 1, B-1348 Louvain-la-Neuve, Belgium
| | - Sebastian Seiffert
- Institute of Physical Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
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17
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Mordvinkin A, Suckow M, Böhme F, Colby RH, Creton C, Saalwächter K. Hierarchical Sticker and Sticky Chain Dynamics in Self-Healing Butyl Rubber Ionomers. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00159] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Anton Mordvinkin
- Institut für Physik—NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Str. 7, 06120 Halle (Saale), Germany
| | - Marcus Suckow
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Frank Böhme
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Ralph H. Colby
- Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Costantino Creton
- Laboratoire de Sciences et Ingénierie de la Matière Molle, CNRS, ESPCI Paris, PSL Research University, 10 Rue Vauquelin, 75005 Paris, France
| | - Kay Saalwächter
- Institut für Physik—NMR, Martin-Luther-Universität Halle-Wittenberg, Betty-Heimann-Str. 7, 06120 Halle (Saale), Germany
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18
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Gârlea IC, Jaramillo-Cano D, Likos CN. Self-organization of gel networks formed by block copolymer stars. SOFT MATTER 2019; 15:3527-3540. [PMID: 30944917 DOI: 10.1039/c9sm00111e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The equilibrium properties of block copolymer star networks (BCS) are studied via computer simulations. We employ both molecular dynamics and multiparticle collisional dynamics simulations to investigate the self-organization of BCS with f = 9 functionalized arms close to their overlap concentrations under conditions of different fractions of functionalization and varying attraction strength. We find three distinct macroscopic self-organized states depending on fraction of attractive end-monomers and the strength of the attraction. At weak attractions, ergodic, diffusive liquids result, with short-lived bonds between the stars. As the attraction strength grows, the whole system forms a percolating cluster, while at the same time the individual molecules are diffusive. Finally, arrested gels emerge when the attractions become strong. The conformation of the BCS in these solutions is found to be strongly affected by the concentration, with the stars assuming typically spherical, open configurations in seeking to maximize inter-star associations as opposed to the inter-star collapse that results at infinite dilution, giving rise to strongly aspherical shapes and reduced sizes.
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Affiliation(s)
- Ioana C Gârlea
- Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria.
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19
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Goldansaz H, Jangizehi A, Nikravan G, Verkinderen O, Goderis B, Ghaffarian SR, van Ruymbeke E, Ahmadi M. Rheological modifiers based on supramolecular block copolymers: From weak associations to interconnected micelles. REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2019.01.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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20
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Hinton ZR, Shabbir A, Alvarez NJ. Dynamics of Supramolecular Self-Healing Recovery in Extension. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02423] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Zachary R. Hinton
- Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Aamir Shabbir
- Department of Chemical Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Nicolas J. Alvarez
- Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
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21
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Effect of a functional polymer on the rheology and microstructure of sodium alginate. Carbohydr Polym 2018; 199:58-67. [DOI: 10.1016/j.carbpol.2018.07.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/28/2018] [Accepted: 07/02/2018] [Indexed: 01/25/2023]
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22
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Callies X, Ressouche E, Fonteneau C, Ducouret G, Pensec S, Bouteiller L, Creton C. Effect of the Strength of Stickers on Rheology and Adhesion of Supramolecular Center-Functionalized Polyisobutenes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:12625-12634. [PMID: 30260654 DOI: 10.1021/acs.langmuir.8b02533] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In order to systematically investigate the effect of the strength of the supramolecular interactions on the debonding properties of associative polymers, a series of model systems have been characterized by probe-tack tests. These model materials, composed of linear and low dispersity poly(isobutylene) chains ( Mn ≈ 3 kg/mol) center-functionalized by a single bis-urea sticker, are able to self-assemble by four hydrogen bonds. Three types of stickers are used in the present study: a bis-urea with a methylene diphenyl (MDI) spacer, a bis-urea with a tolyl (TOL) spacer, and a bis-urea with a xylyl (XYL) spacer. In order to investigate the influence of stickers in depth, both the nanostructure of the materials and the linear rheology were investigated by small-angle X-ray scattering (SAXS) and oscillatory shear, respectively. For two types of stickers (TOL and XYL), the association of polymers via hydrogen bonds induces the formation of bundles of rodlike aggregates at room temperature and the behavior of a soft elastic material was observed. For bis-urea MDI, no structure is detected by SAXS and a Newtonian behavior is observed at room temperature. In probe-tack experiments, all these materials show a cohesive mode of failure, a signature of flowing materials as previously observed for tri-urea center-functionalized poly(butylacrylate) (PnBA3U). However, XYL center-functionalized polyisobutene shows much higher debonding energies than PnBA3U, revealing the importance of the strength of noncovalent bonds in the scission/recombination dynamics. On the basis of the analysis of the debonding images, this effect is discussed via the mechanical behavior at large deformation.
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Affiliation(s)
- X Callies
- Laboratoire de Sciences et Ingénierie de la Matière Molle, CNRS, ESPCI Paris, PSL Research University , 10 rue Vauquelin , 75005 Paris , France
- Laboratoire Sciences et Ingénierie de la Matière Molle , Sorbonne-Université , 10 rue Vauquelin , 75005 Paris , France
| | - E Ressouche
- Sorbonne Université, CNRS, IPCM, Chimie des Polymères , F-75005 Paris , France
| | - C Fonteneau
- Sorbonne Université, CNRS, IPCM, Chimie des Polymères , F-75005 Paris , France
| | - G Ducouret
- Laboratoire de Sciences et Ingénierie de la Matière Molle, CNRS, ESPCI Paris, PSL Research University , 10 rue Vauquelin , 75005 Paris , France
- Laboratoire Sciences et Ingénierie de la Matière Molle , Sorbonne-Université , 10 rue Vauquelin , 75005 Paris , France
| | - S Pensec
- Sorbonne Université, CNRS, IPCM, Chimie des Polymères , F-75005 Paris , France
| | - L Bouteiller
- Sorbonne Université, CNRS, IPCM, Chimie des Polymères , F-75005 Paris , France
| | - C Creton
- Laboratoire de Sciences et Ingénierie de la Matière Molle, CNRS, ESPCI Paris, PSL Research University , 10 rue Vauquelin , 75005 Paris , France
- Laboratoire Sciences et Ingénierie de la Matière Molle , Sorbonne-Université , 10 rue Vauquelin , 75005 Paris , France
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23
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Xing K, Tress M, Cao PF, Fan F, Cheng S, Saito T, Sokolov AP. The Role of Chain-End Association Lifetime in Segmental and Chain Dynamics of Telechelic Polymers. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01210] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Kunyue Xing
- Department of Chemistry, University of Tennessee, Knoxville, Knoxville, Tennessee 37996, United States
| | - Martin Tress
- Department of Chemistry, University of Tennessee, Knoxville, Knoxville, Tennessee 37996, United States
| | - Peng-Fei Cao
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Fei Fan
- Department of Chemistry, University of Tennessee, Knoxville, Knoxville, Tennessee 37996, United States
| | - Shiwang Cheng
- Department of Chemical Engineering and Material Science, Michigan State University, East Lansing, Michigan 48824, United States
| | - Tomonori Saito
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Alexei P. Sokolov
- Department of Chemistry, University of Tennessee, Knoxville, Knoxville, Tennessee 37996, United States
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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24
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Metri V, Louhichi A, Yan J, Baeza GP, Matyjaszewski K, Vlassopoulos D, Briels WJ. Physical Networks from Multifunctional Telechelic Star Polymers: A Rheological Study by Experiments and Simulations. Macromolecules 2018; 51:2872-2886. [PMID: 29910512 PMCID: PMC5997402 DOI: 10.1021/acs.macromol.7b02613] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 03/26/2018] [Indexed: 11/29/2022]
Abstract
The equilibrium mechanical properties of a cross-linked gel of telechelic star polymers are studied by rheology and Brownian dynamics simulations. The Brownian dynamics model consists of cores to which Rouse arms are attached. Forces between the cores are obtained from a potential of mean force model developed by Likos and co-workers. Both experimentally and in the simulations, networks were created by attaching sticker groups to the ends of the arms of the polymers, which were next allowed to form bonds among them in a one to one fashion. Simulations were sped up by solving the Rouse dynamics exactly. Moreover, the Rouse model was extended to allow for different frictions on different beads. In order to describe the rheology of the non-cross-linked polymers, it had to be assumed that bead frictions increase with increasing bead number along the arms. This friction model could be transferred to describe the rheology of the network without any adjustments other than an overall increase of the frictions due to the formation of bonds. The slowing down at intermediate times of the network rheology compared to that of the non-cross-linked polymers is well described by the model. The percentage of stickers involved in forming inter-star bonds in the system was determined to be 25%, both from simulations and from an application of the Green-Tobolsky relation to the experimental plateau value of the shear relaxation modulus. Simulations with increasing cross-link percentages revealed that on approaching the gel transition the shear relaxation modulus develops an algebraic tail, which gets frozen at a percentage of maximum cross-linking of about 11%.
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Affiliation(s)
- Vishal Metri
- Computational Chemical Physics, Faculty of Science
and Technology, and MESA+ Institute
for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
| | - Ameur Louhichi
- Institute
of Electronic Structure & Laser, FORTH, P.O. Box 1527, 70013 Heraklion, Crete Greece
- Department
of Materials Science & Technology, University
of Crete, Voutes Campus, 70013 Heraklion, Crete Greece
| | - Jiajun Yan
- Department
of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Guilhem P. Baeza
- CNRS,
MATEIS, University of Lyon, INSA-Lyon, UMR5510-7 avenue Jean Capelle, F-69621 Villeurbanne, France
| | - Krzysztof Matyjaszewski
- Department
of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Dimitris Vlassopoulos
- Institute
of Electronic Structure & Laser, FORTH, P.O. Box 1527, 70013 Heraklion, Crete Greece
- Department
of Materials Science & Technology, University
of Crete, Voutes Campus, 70013 Heraklion, Crete Greece
| | - Wim J. Briels
- Computational Chemical Physics, Faculty of Science
and Technology, and MESA+ Institute
for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
- ICS 3, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
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25
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Jangizehi A, Ghaffarian SR, Schmolke W, Seiffert S. Dominance of Chain Entanglement over Transient Sticking on Chain Dynamics in Hydrogen-Bonded Supramolecular Polymer Networks in the Melt. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02180] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Amir Jangizehi
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, No. 424, Hafez Avenue, Tehran 15875-4413, Iran
- Institute of Physical Chemistry, Johannes Gutenberg-University of Mainz, Duesbergweg 10-14, Mainz D-55128, Germany
| | - S. Reza Ghaffarian
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, No. 424, Hafez Avenue, Tehran 15875-4413, Iran
| | - Willi Schmolke
- Institute of Physical Chemistry, Johannes Gutenberg-University of Mainz, Duesbergweg 10-14, Mainz D-55128, Germany
| | - Sebastian Seiffert
- Institute of Physical Chemistry, Johannes Gutenberg-University of Mainz, Duesbergweg 10-14, Mainz D-55128, Germany
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26
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Xing K, Tress M, Cao P, Cheng S, Saito T, Novikov VN, Sokolov AP. Hydrogen-bond strength changes network dynamics in associating telechelic PDMS. SOFT MATTER 2018; 14:1235-1246. [PMID: 29355867 DOI: 10.1039/c7sm01805c] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Associating polymers are a class of materials with widely tunable macroscopic properties. Here, we investigate telechelic poly(dimethylsiloxanes) of several molecular weights (MW) with different hydrogen bonding end groups. Besides the well-established increase of the glass transition temperature Tg with decreasing MW, Tg remains unchanged as the end group varies from NH2 over OH to COOH. For the latter system, a 2nd Tg is found which indicates a segregated phase. In contrast, rheological measurements reveal a qualitative difference in the viscoelastic response of NH2-terminated and COOH-terminated chains. Both systems show clear signs of end group association, but only the latter exhibits an extended rubbery plateau. All features observed in the rheology experiments have corresponding processes in the dielectric measurements. This provides insight into the underlying molecular mechanisms, and especially reveals that many end groups of the COOH-terminated chains phase segregate while a certain fraction forms binary associates and remains non-segregated. In contrast, the NH2-terminated systems form only binary associates increasing the effective chain length, whereas the COOH-terminated system consists of two types of associates forming a crosslinked network. Remarkably, a single species of end group forms two qualitatively different types of associates: transient bonds which allow stress release by a bond-partner exchange mechanism, and effectively permanent bonds formed by a phase segregated fraction of end groups which are stable on the timescale of the transient mechanism.
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Affiliation(s)
- Kunyue Xing
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, USA.
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27
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Jurjiu A, Turcu F, Galiceanu M. Dynamics of a Complex Multilayer Polymer Network: Mechanical Relaxation and Energy Transfer. Polymers (Basel) 2018; 10:E164. [PMID: 30966200 PMCID: PMC6415159 DOI: 10.3390/polym10020164] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Revised: 02/04/2018] [Accepted: 02/06/2018] [Indexed: 01/12/2023] Open
Abstract
In this paper, we focus on the mechanical relaxation of a multilayer polymer network built by connecting identical layers that have, as underlying topologies, the dual Sierpinski gasket and the regular dendrimer. Additionally, we analyze the dynamics of dipolar energy transfer over a system of chromophores arranged in the form of a multilayer network. Both dynamical processes are studied in the framework of the generalized Gaussian structure (GSS) model. We develop a method whereby the whole eigenvalue spectrum of the connectivity matrix of the multilayer network can be determined iteratively, thereby rendering possible the analysis of the dynamics of networks consisting of a large number of layers. This fact allows us to study in detail the crossover from layer-like behavior to chain-like behavior. Remarkably, we highlight the existence of two bulk-like behaviors. The theoretical findings with respect to the decomposition of the intermediate domain of the relaxation quantities, as well as the chain-like behavior, are well supported by experimental results.
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Affiliation(s)
- Aurel Jurjiu
- Faculty of Physics, Babes-Bolyai University, Street Mihail Kogalniceanu 1, 400084 Cluj-Napoca, Romania.
| | - Flaviu Turcu
- Faculty of Physics, Babes-Bolyai University, Street Mihail Kogalniceanu 1, 400084 Cluj-Napoca, Romania.
| | - Mircea Galiceanu
- Department of Physics, Federal University of Amazonas, 69077-000 Manaus, Brazil.
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28
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Callies X, Véchambre C, Fonteneau C, Herbst F, Chenal JM, Pensec S, Chazeau L, Binder WH, Bouteiller L, Creton C. Effects of multifunctional cross-linkers on rheology and adhesion of soft nanostructured materials. SOFT MATTER 2017; 13:7979-7990. [PMID: 29051953 DOI: 10.1039/c7sm01304c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We investigate the nanostructure, the rheology and the adhesion of soft supramolecular materials elaborated by blending monofunctional and multifunctional poly(isobutene) (PIB) chains. Monofunctional PIB chains (PIBUT) are linear and unentangled polymer chains (Mn ≈ 3 kg mol-1) functionalized in the middle by a bis-urea interacting moiety, able to self-associate by four hydrogen bonds. Covalent coupling of monofunctional PIB allows us to synthesize longer chains bearing two or three interacting moieties. These chains are then added to monofunctional PIB to prepare blends containing up to 10% of multifunctional PIB (M-PIBUT). The influence of M-PIBUT on the supramolecular nanostructure, which results from the self-assembly of stickers, is studied by Atomic Force Microscopy and Small Angle X-ray Scattering at room temperature. Multifunctional and monofunctional chains are shown to interact with each other to form bundles of rod-like aggregates. The consequences of these interactions on the rheology of the blends were studied by shear tests in the linear and non linear regimes, below and above the order-disorder transition temperature. A pronounced strengthening effect of M-PIBUT is observed at room temperature: the supramolecular blends become more elastic and are more resistant to creep with increasing concentration of M-PIBUT. The effects of M-PIBUT on the nanostructure and the rheology suggest that M-PIBUT, which can link with more than one supramolecular aggregate, plays the role of a physical cross-linker. The impact of these supramolecular cross-linkers on the adhesion of the blends is studied by probe-tack tests and discussed by analyzing the in situ deformation through the debonding images.
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Affiliation(s)
- X Callies
- Laboratoire de Sciences et Ingénierie de la Matière Molle, CNRS, ESPCI Paris, PSL Research University, 10 Rue Vauquelin, 75005 Paris, France.
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29
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Jangizehi A, Ghaffarian SR, Ahmadi M. Dynamics of entangled supramolecular polymer networks in presence of high-order associations of strong hydrogen bonding groups. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4178] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Amir Jangizehi
- Department of Polymer Engineering and Color Technology; Amirkabir University of Technology; 15875-4413 Tehran Iran
- Institute of Physical Chemistry; Johannes Gutenberg-University of Mainz; Duesbergweg 10-14 Mainz D-55128 Germany
| | - Seyed Reza Ghaffarian
- Department of Polymer Engineering and Color Technology; Amirkabir University of Technology; 15875-4413 Tehran Iran
| | - Mostafa Ahmadi
- Department of Polymer Engineering and Color Technology; Amirkabir University of Technology; 15875-4413 Tehran Iran
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30
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Lillie LM, Tolman WB, Reineke TM. Structure/property relationships in copolymers comprising renewable isosorbide, glucarodilactone, and 2,5-bis(hydroxymethyl)furan subunits. Polym Chem 2017. [DOI: 10.1039/c7py00575j] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Carbohydrates and their derivatives have great potential as building blocks for the development of renewable materials that are cost and performance competitive with conventional petroleum-based materials.
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Affiliation(s)
- Leon M. Lillie
- Department of Chemistry and Center for Sustainable Polymers
- University of Minnesota
- Minneapolis
- USA
| | - William B. Tolman
- Department of Chemistry and Center for Sustainable Polymers
- University of Minnesota
- Minneapolis
- USA
| | - Theresa M. Reineke
- Department of Chemistry and Center for Sustainable Polymers
- University of Minnesota
- Minneapolis
- USA
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31
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Callies X, Herscher O, Fonteneau C, Robert A, Pensec S, Bouteiller L, Ducouret G, Creton C. Combined Effect of Chain Extension and Supramolecular Interactions on Rheological and Adhesive Properties of Acrylic Pressure-Sensitive Adhesives. ACS APPLIED MATERIALS & INTERFACES 2016; 8:33307-33315. [PMID: 27934152 DOI: 10.1021/acsami.6b11045] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A new approach for the elaboration of low molecular weight pressure-sensitive adhesives based on supramolecular chemistry is explored. The synthesis of model systems coupled with probe-tack tests and rheological experiments highlights the influence of the transient network formed by supramolecular bonds on the adhesion energy. The first step of our approach consists of synthesizing poly(butyl acrylate-co-glycidyl methacrylate) copolymers from a difunctional initiator able to self-associate by four hydrogen bonds between urea groups. Linear copolymers with a low dispersity (Mn = 10 kg/mol, Ip < 1.4) have been synthesized via atom transfer radical polymerization. Films of the copolymers were then partially cross-linked through reaction of the epoxy functions with a diamine. The systematic variation of the average ratio of glycidyl methacrylate and diamine per copolymer shed light on the respective role played by the supramolecular interactions (between bis-urea groups and with the side chains) and by the chain extension and branching induced by the diamine/epoxy reaction. In this strategy, the adhesive performance can be optimized by modifying the strength of "stickers" (via the structure of the supramolecular initiator, for instance) and the polymer network (e.g., via the length and level of branching of the copolymer chains) in order to approach commercial PSA-like properties (high debonding energy and clean removal).
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Affiliation(s)
- Xavier Callies
- Laboratoire Sciences et Ingénierie de la Matière Molle, CNRS, ESPCI Paris, PSL Research University , 10 Rue Vauquelin, Paris, France
- Laboratoire Sciences et Ingénierie de la Matière Molle, Université Pierre et Marie Curie, Sorbonne-Universités , 10 Rue Vauquelin, Paris, France
| | - Olivier Herscher
- UPMC Univ Paris 06, CNRS, IPCM, Chimie des Polymères, Sorbonne Universités , F-75005 Paris, France
| | - Cécile Fonteneau
- UPMC Univ Paris 06, CNRS, IPCM, Chimie des Polymères, Sorbonne Universités , F-75005 Paris, France
| | - Alexis Robert
- Laboratoire Sciences et Ingénierie de la Matière Molle, CNRS, ESPCI Paris, PSL Research University , 10 Rue Vauquelin, Paris, France
- Laboratoire Sciences et Ingénierie de la Matière Molle, Université Pierre et Marie Curie, Sorbonne-Universités , 10 Rue Vauquelin, Paris, France
| | - Sandrine Pensec
- UPMC Univ Paris 06, CNRS, IPCM, Chimie des Polymères, Sorbonne Universités , F-75005 Paris, France
| | - Laurent Bouteiller
- UPMC Univ Paris 06, CNRS, IPCM, Chimie des Polymères, Sorbonne Universités , F-75005 Paris, France
| | - Guylaine Ducouret
- Laboratoire Sciences et Ingénierie de la Matière Molle, CNRS, ESPCI Paris, PSL Research University , 10 Rue Vauquelin, Paris, France
- Laboratoire Sciences et Ingénierie de la Matière Molle, Université Pierre et Marie Curie, Sorbonne-Universités , 10 Rue Vauquelin, Paris, France
| | - Costantino Creton
- Laboratoire Sciences et Ingénierie de la Matière Molle, CNRS, ESPCI Paris, PSL Research University , 10 Rue Vauquelin, Paris, France
- Laboratoire Sciences et Ingénierie de la Matière Molle, Université Pierre et Marie Curie, Sorbonne-Universités , 10 Rue Vauquelin, Paris, France
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32
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Zhang Z, Liu C, Cao X, Gao L, Chen Q. Linear Viscoelastic and Dielectric Properties of Strongly Hydrogen-Bonded Polymers near the Sol–Gel Transition. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02017] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Zhijie Zhang
- State Key Laboratory
of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Chang Liu
- State Key Laboratory
of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Xiao Cao
- State Key Laboratory
of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Longcheng Gao
- Key Laboratory of Bio-inspired Smart Interfacial Science
and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing 100191, China
| | - Quan Chen
- State Key Laboratory
of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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33
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Galiceanu M, Jurjiu A. Relaxation dynamics of multilayer triangular Husimi cacti. J Chem Phys 2016; 145:104901. [DOI: 10.1063/1.4962196] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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34
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Callies X, Fonteneau C, Pensec S, Bouteiller L, Ducouret G, Creton C. Adhesion and non-linear rheology of adhesives with supramolecular crosslinking points. SOFT MATTER 2016; 12:7174-7185. [PMID: 27498899 DOI: 10.1039/c6sm01154c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Soft supramolecular materials are promising for the design of innovative and highly tunable adhesives. These materials are composed of polymer chains functionalized by strongly interacting moieties, sometimes called "stickers". In order to systematically investigate the effect of the presence of associative groups on the debonding properties of a supramolecular adhesive, a series of supramolecular model systems has been characterized by probe-tack tests. These model materials, composed of linear and low dispersity poly(butylacrylate) chains functionalized in the middle by a single tri-urea sticker, are able to self-associate by six hydrogen bonds and range in molecular weight (Mn) between 5 and 85 kg mol(-1). The linear rheology and the nanostructure of the same materials (called "PnBA3U") were the object of a previous study. At room temperature, the association of polymers via hydrogen bonds induces the formation of rod-like aggregates structured into bundles for Mn < 40 kg mol(-1) and the behavior of a soft elastic material was observed (G'≪G'' and G'∼ω(0)). For higher Mn materials, the filaments were randomly oriented and the polymers displayed a crossover towards viscous behavior although terminal relaxation was not reached in the experimental frequency window. All these materials show, however, similar adhesive properties characterized by a cohesive mode of failure and low debonding energies (Wadh < 40 J m(-2) for a debonding speed of 100 μm s(-1)). The debonding mechanisms observed during the adhesion tests have been investigated in detail with an Image tools analysis developed by our group. The measure of the projected area covered by cavities growing in the adhesive layer during debonding can be used to estimate the true stress in the walls of the cavities and thus to characterize the in situ large strain deformation of the thin layer during the adhesion test itself. This analysis revealed in particular that the PnBA3U materials with Mn < 40 kg mol(-1) soften very markedly at large deformation like yield stress fluids, explaining the low adhesion energies measured for these viscoelastic gels.
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Affiliation(s)
- X Callies
- Sciences et Ingénierie de la Matière Molle, CNRS UMR 7615, ESPCI Paris, PSL Research University, 10 rue Vauquelin, F-75231 Paris cedex 05, France.
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Xu H, Hua G, Odelius K, Hakkarainen M. Stereocontrolled Entanglement-Directed Self-Alignment of Poly(lactic acid) Cylindrites. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600364] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Huan Xu
- Department of Fibre and Polymer Technology; KTH Royal Institute of Technology; Stockholm 100 44 Sweden
- College of Polymer Science and Engineering; State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu 610065 China
| | - Geng Hua
- Department of Fibre and Polymer Technology; KTH Royal Institute of Technology; Stockholm 100 44 Sweden
| | - Karin Odelius
- Department of Fibre and Polymer Technology; KTH Royal Institute of Technology; Stockholm 100 44 Sweden
| | - Minna Hakkarainen
- Department of Fibre and Polymer Technology; KTH Royal Institute of Technology; Stockholm 100 44 Sweden
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Zhang L, Qiu B, Song Y, Zheng Q. Molecular relaxation and dynamic rheology of “cluster phase”-free ionomers based on lanthanum(iii)-neutralized low-carboxylated poly(methyl methacrylate). RSC Adv 2016. [DOI: 10.1039/c6ra10135f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
La(iii)-neutralized low-carboxylated poly(methyl methacrylate)-based ionomers free of cluster phase exhibit a fluid-to-solid transition assigned to an interconnected multiplets network.
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Affiliation(s)
- Lina Zhang
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Biwei Qiu
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Yihu Song
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
| | - Qiang Zheng
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
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