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Wagay SA, Ali R. The Hamilton Receptor in Supramolecular Polymer Sciences. Top Curr Chem (Cham) 2024; 382:27. [PMID: 39033235 DOI: 10.1007/s41061-024-00471-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Accepted: 07/01/2024] [Indexed: 07/23/2024]
Abstract
Supramolecular polymers are polymeric materials of monomeric fragments, held jointly by reversible and directional non-covalent interactions such as multiple hydrogen-bonding, charge transfer effects, host-guest interactions, metal coordination, and aromatic stacking. This review article on the Hamilton-based supramolecular polymers aims to shed light on the molecular recognition achievements by the Hamilton-based polymeric systems, evaluate Hamilton receptor's future prospects, and capitalize its potential applications in supramolecular chemistry. To the best of our knowledge, this is the first elaborative and sole manuscript in which polymeric Hamilton receptors are being exposed in detail. The first portion of this manuscript is related to the importance and urgency of polymers along with the historic background of Hamilton receptors. The middle section discloses the potential applications of Hamilton-type receptors in various fields, e.g., dendrimers, mechanically polymeric rotaxanes, and self-assemblies. The final section of the manuscript discloses the future aspects and the importance of novel polymer-based Hamilton-type receptors in the modern era. We believe that this first review in this emerging yet immature field will be useful to inspire scientists around the world to find the unseen future prospects, thereby boosting the field related to this valued artificial receptor in the province of supramolecular chemistry and also in other domains of scientific fields and technology, as well.
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Affiliation(s)
- Shafieq Ahmad Wagay
- Organic and Supramolecular Functional Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, Okhla, New Delhi, 110025, India
| | - Rashid Ali
- Organic and Supramolecular Functional Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, Okhla, New Delhi, 110025, India.
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2
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Haino T, Nitta N. Supramolecular Synthesis of Star Polymers. Chempluschem 2024; 89:e202400014. [PMID: 38407573 DOI: 10.1002/cplu.202400014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 02/25/2024] [Accepted: 02/26/2024] [Indexed: 02/27/2024]
Abstract
Supramolecular polymers, in which monomers are assembled via intermolecular interactions, have been extensively studied. The fusion of supramolecular polymers with conventional polymers has attracted the attention of many researchers. In this review article, the recent progress in the construction of supramolecular star polymers, including regular star polymers and miktoarm star polymers, is discussed. The initial sections briefly provide an overview of the conventional classification and synthesis methods for star polymers. Coordination-driven self-assembly was investigated for the supramolecular synthesis of star polymers. Star polymers with multiple polymer chains radiating from metal-organic polyhedra (MOPs) have also been described. Particular focus has been placed on the synthesis of star polymers featuring supramolecular cores formed through hydrogen-bonding-directed self-assembly. After describing the synthesis of star polymers based on host-guest complexes, the construction of miktoarm star polymers based on the molecular recognition of coordination capsules is detailed.
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Affiliation(s)
- Takeharu Haino
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Higashi-Hiroshima, 739-8526, Japan
- International Institute for Sustainability with Knotted Chiral Meta Matter (WPI-SKCM2), Hiroshima University, 2-313 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8527, Japan
| | - Natsumi Nitta
- Pritzker School of Molecular Engineering, The University of Chicago, 5640 South Elise Avenue, Chicago, Illinois, 60637, United States
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3
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Rubert L, Islam MF, Greytak AB, Prakash R, Smith MD, Gomila RM, Frontera A, Shimizu LS, Soberats B. Two-Dimensional Supramolecular Polymerization of a Bis-Urea Macrocycle into a Brick-Like Hydrogen-Bonded Network. Angew Chem Int Ed Engl 2023; 62:e202312223. [PMID: 37750233 DOI: 10.1002/anie.202312223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/20/2023] [Accepted: 09/25/2023] [Indexed: 09/27/2023]
Abstract
We report on a dendronized bis-urea macrocycle 1 self-assembling via a cooperative mechanism into two-dimensional (2D) nanosheets formed solely by alternated urea-urea hydrogen bonding interactions. The pure macrocycle self-assembles in bulk into one-dimensional liquid-crystalline columnar phases. In contrast, its self-assembly mode drastically changes in CHCl3 or tetrachloroethane, leading to 2D hydrogen-bonded networks. Theoretical calculations, complemented by previously reported crystalline structures, indicate that the 2D assembly is formed by a brick-like hydrogen bonding pattern between bis-urea macrocycles. This assembly is promoted by the swelling of the trisdodecyloxyphenyl groups upon solvation, which frustrates, due to steric effects, the formation of the thermodynamically more stable columnar macrocycle stacks. This work proposes a new design strategy to access 2D supramolecular polymers by means of a single non-covalent interaction motif, which is of great interest for materials development.
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Affiliation(s)
- Llorenç Rubert
- Department of Chemistry, Universitat de les Illes Balears, Cra. Valldemossa, Km. 7.5, 07122, Palma de Mallorca, Spain
| | - Md Faizul Islam
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC-29208, USA
| | - Andrew B Greytak
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC-29208, USA
| | - Rahul Prakash
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC-29208, USA
| | - Mark D Smith
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC-29208, USA
| | - Rosa Maria Gomila
- Department of Chemistry, Universitat de les Illes Balears, Cra. Valldemossa, Km. 7.5, 07122, Palma de Mallorca, Spain
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Cra. Valldemossa, Km. 7.5, 07122, Palma de Mallorca, Spain
| | - Linda S Shimizu
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC-29208, USA
| | - Bartolome Soberats
- Department of Chemistry, Universitat de les Illes Balears, Cra. Valldemossa, Km. 7.5, 07122, Palma de Mallorca, Spain
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Assembling Complex Macromolecules and Self-Organizations of Biological Relevance with Cu(I)-Catalyzed Azide-Alkyne, Thio-Bromo, and TERMINI Double "Click" Reactions. Polymers (Basel) 2023; 15:polym15051075. [PMID: 36904317 PMCID: PMC10007166 DOI: 10.3390/polym15051075] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 02/17/2023] [Accepted: 02/17/2023] [Indexed: 02/24/2023] Open
Abstract
In 2022, the Nobel Prize in Chemistry was awarded to Bertozzi, Meldal, and Sharpless "for the development of click chemistry and biorthogonal chemistry". Since 2001, when the concept of click chemistry was advanced by Sharpless laboratory, synthetic chemists started to envision click reactions as the preferred choice of synthetic methodology employed to create new functions. This brief perspective will summarize research performed in our laboratories with the classic Cu(I)-catalyzed azide-alkyne click (CuAAC) reaction elaborated by Meldal and Sharpless, with the thio-bromo click (TBC) and with the less-used, irreversible TERminator Multifunctional INItiator (TERMINI) dual click (TBC) reactions, the last two elaborated in our laboratory. These click reactions will be used to assemble, by accelerated modular-orthogonal methodologies, complex macromolecules and self-organizations of biological relevance. Self-assembling amphiphilic Janus dendrimers and Janus glycodendrimers together with their biological membrane mimics known as dendrimersomes and glycodendrimersomes as well as simple methodologies to assemble macromolecules with perfect and complex architecture such as dendrimers from commercial monomers and building blocks will be discussed. This perspective is dedicated to the 75th anniversary of Professor Bogdan C. Simionescu, the son of my (VP) Ph.D. mentor, Professor Cristofor I. Simionescu, who as his father, took both science and science administration in his hands, and dedicated his life to handling them in a tandem way, to their best.
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5
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Li C, Hilgeroth P, Hasan N, Ströhl D, Kressler J, Binder WH. Comparing C2=O and C2=S Barbiturates: Different Hydrogen-Bonding Patterns of Thiobarbiturates in Solution and the Solid State. Int J Mol Sci 2021; 22:12679. [PMID: 34884482 PMCID: PMC8657569 DOI: 10.3390/ijms222312679] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/18/2021] [Accepted: 11/20/2021] [Indexed: 12/17/2022] Open
Abstract
Carbonyl-centered hydrogen bonds with various strength and geometries are often exploited in materials to embed dynamic and adaptive properties, with the use of thiocarbonyl groups as hydrogen-bonding acceptors remaining only scarcely investigated. We herein report a comparative study of C2=O and C2=S barbiturates in view of their differing hydrogen bonds, using the 5,5-disubstituted barbiturate B and the thiobarbiturate TB as model compounds. Owing to the different hydrogen-bonding strength and geometries of C2=O vs. C2=S, we postulate the formation of different hydrogen-bonding patterns in C2=S in comparison to the C2=O in conventional barbiturates. To study differences in their association in solution, we conducted concentration- and temperature-dependent NMR experiments to compare their association constants, Gibbs free energy of association ∆Gassn., and the coalescence behavior of the N-H‧‧‧S=C bonded assemblies. In Langmuir films, the introduction of C2=S suppressed 2D crystallization when comparing B and TB using Brewster angle microscopy, also revealing a significant deviation in morphology. When embedded into a hydrophobic polymer such as polyisobutylene, a largely different rheological behavior was observed for the barbiturate-bearing PB compared to the thiobarbiturate-bearing PTB polymers, indicative of a stronger hydrogen bonding in the thioanalogue PTB. We therefore prove that H-bonds, when affixed to a polymer, here the thiobarbiturate moieties in PTB, can reinforce the nonpolar PIB matrix even better, thus indicating the formation of stronger H-bonds among the thiobarbiturates in polymers in contrast to the effects observed in solution.
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Affiliation(s)
- Chenming Li
- Macromolecular Chemistry, Institute of Chemistry, Martin-Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany; (C.L.); (P.H.)
| | - Philipp Hilgeroth
- Macromolecular Chemistry, Institute of Chemistry, Martin-Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany; (C.L.); (P.H.)
| | - Nazmul Hasan
- Physical Chemistry, Institute of Chemistry, Martin-Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany; (N.H.); (J.K.)
| | - Dieter Ströhl
- Organic Chemistry, Institute of Chemistry, Martin-Luther University Halle-Wittenberg, Kurt-Mothes-Str. 2, 06120 Halle (Saale), Germany;
| | - Jörg Kressler
- Physical Chemistry, Institute of Chemistry, Martin-Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany; (N.H.); (J.K.)
| | - Wolfgang H. Binder
- Macromolecular Chemistry, Institute of Chemistry, Martin-Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany; (C.L.); (P.H.)
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6
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Milton M, Deng R, Mann A, Wang C, Tang D, Weck M. Secondary Structure in Nonpeptidic Supramolecular Block Copolymers. Acc Chem Res 2021; 54:2397-2408. [PMID: 33914498 DOI: 10.1021/acs.accounts.1c00028] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Proteins contain a level of complexity-secondary and tertiary structures-that polymer chemists aim to imitate. The bottom-up synthesis of protein-mimicking polymers mastering sequence variability and dispersity remains challenging. Incorporating polymers with predefined secondary structures, such as helices and π-π stacking sheets, into block copolymers circumvents the issue of designing and predicting one facet of their 3D architecture. Block copolymers with well-defined secondary-structure elements formed by covalent chain extension or supramolecular self-assembly may be considered for localized tertiary structures.In this Account, we describe a strategy toward block copolymers composed of units bearing well-defined secondary structures mixed in a "plug-and-play" manner that approaches a modicum of the versatility seen in nature. Our early efforts focused on the concept of single-chain collapse to achieve folded secondary structures through either hydrogen bonding or quadrupole attractive forces. These cases, however, required high dilution. Therefore, we turned to the ring-opening metathesis polymerization (ROMP) of [2.2]paracyclophane-1,9-dienes (pCpd), which forms conjugated, fluorescent poly(p-phenylenevinylene)s (PPVs) evocative of β-sheets. Helical building blocks arise from polymers such as poly(isocyanide)s (PICs) or poly(methacrylamide)s (PMAcs) containing bulky, chiral side groups while the coil motif can be represented by any flexible chain; we frequently chose poly(styrene) (PS) or poly(norbornene) (PNB). We installed moieties for supramolecular assembly at the chain ends of our "sheets" to combine them with complementary helical or coil-shaped polymeric building blocks.Assembling hierarchical materials tantamount to the complexity of proteins requires directional interactions with high specificity, covalent chain extension, or a combination of both chemistries. Our design is based on functionalized reversible addition-fragmentation chain-transfer (RAFT) agents that allowed for the introduction of recognition motifs at the terminus of building blocks and chain-terminating agents (CTAs) that enabled the macroinitiation of helical polymers from the chain end of ROMP-generated sheets and/or coils. To achieve triblock copolymers with a heterotelechelic helix, we relied on supramolecular assembly with helix and coil-shaped building blocks. Our most diverse structures to date comprised a middle block of PPV sheets, parallel or antiparallel, and supramolecularly or covalently linked, respectively, end-functionalized with molecular recognition units (MRUs) for orthogonal supramolecular assembly. We explored PPV sheets with multiple folds achieved by chain extension using alternating pCpd and phenyl-pentafluorophenyl β-hairpin turns. Using single-molecule polarization spectroscopy, we showed that folding occurs preferentially in multistranded over double-stranded PPV sheets. Our strategy toward protein-mimicking and foldable polymers demonstrates an efficient route toward higher ordered, well-characterized materials by taking advantage of polymers that naturally manifest secondary structures. Our studies demonstrate the retention of distinct architectures after complex assembly, a paradigm that we believe may extend to other polymeric folding systems.
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Affiliation(s)
- Margarita Milton
- Molecular Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Ru Deng
- Molecular Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Arielle Mann
- Molecular Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Chengyuan Wang
- Molecular Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Danni Tang
- Molecular Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Marcus Weck
- Molecular Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
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7
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Chen S, Wu Y, Wang H, Zhu B, Xiong B, Binder WH, Zhu J. Synthesis and self-aggregated nanostructures of hydrogen-bonding polydimethylsiloxane. Polym Chem 2021. [DOI: 10.1039/d1py00513h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Reversible lamellae (LAM), hexagonally packed cylinders (HPC), body-centered cubic spheres (BCC) and disordered micelles (DIM), are realized by tuning the nature of H-bonding moieties (Ba, TAP, HW), the molecular weight of PDMS, and the temperature.
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Affiliation(s)
- Senbin Chen
- Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education (HUST)
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
- Wuhan 430074
- China
| | - Yanggui Wu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education (HUST)
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
- Wuhan 430074
- China
| | - Huiying Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education (HUST)
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
- Wuhan 430074
- China
| | - Bengao Zhu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education (HUST)
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
- Wuhan 430074
- China
| | - Bijing Xiong
- Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education (HUST)
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
- Wuhan 430074
- China
| | - Wolfgang H. Binder
- Chair of Macromolecular Chemistry
- Faculty of Natural Science II (Chemistry
- Physics and Mathematics)
- Martin Luther University Halle-Wittenberg
- Halle (Saale)
| | - Jintao Zhu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education (HUST)
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
- Wuhan 430074
- China
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8
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Dai Y, Hu Z, Wang X, Liu X, Li Y, Shi Y, Chen Y. Synthesis of fully degradable cationic polymers with various topological structures via postpolymerization modification by using thio-bromo “click” reaction. Polym Chem 2021. [DOI: 10.1039/d1py00106j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Poly(ε-caprolactone) (PCL) based and fully degradable cationic polymers with various topological structures and tunable charge densities were prepared via postpolymerization modification using thio-bromo “click” chemistry.
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Affiliation(s)
- Yunkai Dai
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Guangdong Functional Biomaterials Engineering Technology Research Center
- Sun Yat-Sen University
- Guangzhou 510006
| | - Zhitao Hu
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Guangdong Functional Biomaterials Engineering Technology Research Center
- Sun Yat-Sen University
- Guangzhou 510006
| | - Xiaoying Wang
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Guangdong Functional Biomaterials Engineering Technology Research Center
- Sun Yat-Sen University
- Guangzhou 510006
| | - Xingliang Liu
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Guangdong Functional Biomaterials Engineering Technology Research Center
- Sun Yat-Sen University
- Guangzhou 510006
| | - Yuanchao Li
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Guangdong Functional Biomaterials Engineering Technology Research Center
- Sun Yat-Sen University
- Guangzhou 510006
| | - Yi Shi
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Guangdong Functional Biomaterials Engineering Technology Research Center
- Sun Yat-Sen University
- Guangzhou 510006
| | - Yongming Chen
- School of Materials Science and Engineering
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- Guangdong Functional Biomaterials Engineering Technology Research Center
- Sun Yat-Sen University
- Guangzhou 510006
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9
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Deng R, Milton M, Pomarico SK, Weck M. Synthesis of a Heterotelechelic Helical Poly(methacrylamide) and its Incorporation into a Supramolecular Triblock Copolymer. Polym Chem 2019; 10:5087-5093. [PMID: 33312233 PMCID: PMC7730060 DOI: 10.1039/c9py01047e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report the first heterotelechelic helical poly(methacrylamide) (PMAc) bearing orthogonal supramolecular binding sites on its chain-ends synthesized through a combination of reversible addition-fragmentation chain-transfer (RAFT) polymerization and thiol-bromo "click" chemistry. The heterotelechelic PMAc was assembled with two monotelechelic polymers featuring different secondary structures, namely a coil-like poly(styrene) and a helical poly(isocyanide), resulting in the formation of a coil-helix-helix supramolecular triblock copolymer through orthogonal metal coordination and hydrogen bonding interactions. Triblock assembly was confirmed through 1H NMR spectroscopy, isothermal titration calorimetry (ITC) and viscometry. The individual polymer blocks retained their secondary structures in the final triblock copolymer, as evidenced by circular dichroism (CD) spectroscopy. Our synthetic strategy expands the toolbox of triblock copolymers featuring structural motifs similar to the ones found in proteins and provides the potential for the development of other complex multifunctional polymeric ensembles.
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Affiliation(s)
- Ru Deng
- Department of Chemistry and Molecular Design Institute, New York University, New York, NY, USA
| | - Margarita Milton
- Department of Chemistry and Molecular Design Institute, New York University, New York, NY, USA
| | - Scott K Pomarico
- Department of Chemistry and Molecular Design Institute, New York University, New York, NY, USA
| | - Marcus Weck
- Department of Chemistry and Molecular Design Institute, New York University, New York, NY, USA
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Chen W, Kretzschmann A, Tian W, Wu S. Nonlinear Supramolecular Polymers for Therapeutic Applications. ADVANCED THERAPEUTICS 2018. [DOI: 10.1002/adtp.201800103] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Wenzhuo Chen
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions; Shanxi Key Laboratory of Macromolecular Science and Technology; School of Science; Northwestern Polytechnical University; Xi'an 710072 P. R. China
| | - Annika Kretzschmann
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Wei Tian
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions; Shanxi Key Laboratory of Macromolecular Science and Technology; School of Science; Northwestern Polytechnical University; Xi'an 710072 P. R. China
| | - Si Wu
- Hefei National Laboratory for Physical Sciences at the Microscale; CAS Key Laboratory of Soft Matter Chemistry; Anhui Key Laboratory of Optoelectronic Science and Technology; Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei 230026 China
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11
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Limacher PA, Klopper W. Computational Study of the Molecular Structure and Hydrogen Bonding in the Hamilton Wedge/Cyanuric Acid Binding Motif. Chemphyschem 2017; 18:3352-3359. [PMID: 28834117 DOI: 10.1002/cphc.201700767] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 08/21/2017] [Indexed: 11/09/2022]
Abstract
Intermolecular binding between a Hamilton wedge and cyanuric acid, a frequently employed binding motif to achieve self-assembly of single-chain polymer nanoparticles, is studied by means of ab initio quantum-chemical and DFT calculations. A conformational analysis of the isolated compounds and the hydrogen-bonded complex reveals several low-energy structures, which are characterized based on their nonplanarity and binding energy. New hypothetical binding motifs are proposed and proven to possess a superior binding energy, upon becoming planar. Comparison to experimentally measured NMR spectroscopy data is made and cases of disagreement are traced back to solvent effects for isolated substituents or to thermally stretched intermolecular bonds for hydrogen-bonded species. Strong linear correlations between NMR chemical shifts and hydrogen-bond lengths are established for all compounds investigated.
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Affiliation(s)
- Peter A Limacher
- Institute of Physical Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 2, 76131, Karlsruhe, Germany
| | - Wim Klopper
- Institute of Physical Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 2, 76131, Karlsruhe, Germany
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12
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Kumar S, Deike S, Binder WH. One-Pot Synthesis of Thermoresponsive Amyloidogenic Peptide-Polymer Conjugates via Thio-Bromo "Click" Reaction of RAFT Polymers. Macromol Rapid Commun 2017; 39. [PMID: 29076195 DOI: 10.1002/marc.201700507] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 09/13/2017] [Indexed: 11/09/2022]
Abstract
A synthetic strategy to efficiently prepare main-chain peptide-polymer conjugates probing their aggregation in solution is described. An in situ tandem reaction based on aminolysis/thio-bromo "click" reaction is performed to tether an amyloidogenic peptide fragment amyloid-β17-20 (Leu-Val-Phe-Phe (LVFF)) to the ω-chain end of poly(diethylene glycol methyl ether acrylate) (PDEGA), prepared via reversible addition fragmentation chain transfer polymerization. Structural confirmation of the constructed conjugates PDEGA-LVFF (Mn,SEC = 5600, Ð = 1.21), (Mn,SEC = 7600, Ð = 1.16), and (Mn,SEC = 8900, Ð = 1.15) is successfully made by combined studies of 1 H NMR, size-exclusion chromatography, matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry, and electrospray ionization time-of-flight (ESI-TOF) mass spectrometry. The effect of the peptidic constituent on the thermoresponsive behavior of the polymer is examined by UV-vis spectroscopy, and the self-assembly behavior of the amphiphilic conjugate is further exploited, exhibiting micellar morphology in aqueous solution.
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Affiliation(s)
- Sonu Kumar
- Chair of Macromolecular Chemistry, Faculty of Natural Science II (Chemistry Physics and Mathematics), Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, Halle (Saale), D-06120, Germany
| | - Stefanie Deike
- Chair of Macromolecular Chemistry, Faculty of Natural Science II (Chemistry Physics and Mathematics), Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, Halle (Saale), D-06120, Germany
| | - Wolfgang H Binder
- Chair of Macromolecular Chemistry, Faculty of Natural Science II (Chemistry Physics and Mathematics), Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, Halle (Saale), D-06120, Germany
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13
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Döhler D, Kaiser J, Binder WH. Supramolecular H-bonded three-arm star polymers by efficient combination of RAFT polymerization and thio-bromo “click” reaction. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.06.067] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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14
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Chen S, Meister A, Binder WH. Supramolecular semifluorinated dendrons glued by weak hydrogen-bonds. Chem Commun (Camb) 2017; 53:8699-8702. [DOI: 10.1039/c7cc04683a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Uniform nanoparticles with a diameter of ∼50 nm were generated from supramolecular semifluorinated dendritic networks, driven by weak heterocomplementary hydrogen-bonding moieties.
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Affiliation(s)
- Senbin Chen
- Chair of Macromolecular Chemistry
- Faculty of Natural Science II (Chemistry
- Physics and Mathematics)
- Martin Luther University Halle-Wittenberg
- Halle (Saale) D-06120
| | - Annette Meister
- Center for Structure and Dynamics of Proteins
- Martin Luther University Halle-Wittenberg
- Biocenter
- Halle (Saale) D-06120
- Germany
| | - Wolfgang H. Binder
- Chair of Macromolecular Chemistry
- Faculty of Natural Science II (Chemistry
- Physics and Mathematics)
- Martin Luther University Halle-Wittenberg
- Halle (Saale) D-06120
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15
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Chen S, Döhler D, Binder WH. Rheology of hydrogen-bonded dendritic supramolecular polymer networks in the melt state. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.08.046] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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16
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Affiliation(s)
- Anna Croom
- Molecular Design Institute
and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Kylie B. Manning
- Molecular Design Institute
and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Marcus Weck
- Molecular Design Institute
and Department of Chemistry, New York University, New York, New York 10003, United States
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17
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Abstract
Hydrogen bonds (H-bonds) constitute highly relevant structural units of molecular self-assembly. They bridge biological and synthetic sciences, implementing dynamic properties into materials and molecules, not achieved via purely covalent bonds. Phase segregation on the other hand represents another important assembly principle, responsible for, e.g., cell compartimentation, membrane-formation, and microphase segregation in polymers. Yet, despite the expanding elegant synthetic strategies of supramolecular polymers, the investigation of phase behavior of macromolecules driven by H-bonding forces still remains in its infancy. Compared to phase segregation arising from covalently linked block copolymers, the generation of phase segregated nanostructures via supramolecular polymers facilitates the design of novel functional materials, such as those with stimuli-responsive, self-healing, and erasable-material properties. We here discuss the phase segregation of H-bonding polymers in both the solution and solid state, wherein the molecular recognition elements are based on multiple H-bonding moieties, such as thymine/2,6-diamino-pyridine (THY/DAP), thymine/diamino triazine (THY/DAT), and barbiturate/Hamilton wedge (Ba/HW) elements. The specific aggregation of a series of different H-bonding polymers in solution, both linear and dendritic polymers, bearing heterocomplementary H-bonding moieties are described, in particular focusing on the issue of phase segregation. The exploitation of H-bonded supramolecular dendrons with segregating polymer chains leads to the formation of three-phase segregated hierarchical micelles in solution, purely linking the components via H-bonds, in turn displaying a versatile spectrum of segregated morphologies. We also focus on segregation effects of H-bonded amorphous and crystalline polymers: thus the formation of nanostructures, such as disordered micelles and well-ordered body centered cubic (BCC) packed spheres from telechelic polymers bearing H-bonding moieties at the chain ends is observed. Finally, we discuss the discovery of novel functional microphase separated self-healing supramolecular architectures, illustrating dynamic and self-healing properties with an almost complete recovery of the initial mechanical performances healing within 24h at 30 °C. Collectively, our studies prove that phase segregation in H-bonding polymers is an important principle, capable to generate nanostructures and dynamic properties not achieved in covalently linked polymers. The results discussed illustrate that a rational architectural design within H-bonding polymer systems in interplay with phase segregation in both the amorphous and crystalline state opens perspectives to develop artificial supramolecular systems approaching the level of complexities and properties present in nature's biomaterials.
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Affiliation(s)
- Senbin Chen
- Chair of Macromolecular Chemistry,
Faculty of Natural Science II (Chemistry, Physics and Mathematics), Martin-Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, Halle (Saale) D-06120, Germany
| | - Wolfgang H. Binder
- Chair of Macromolecular Chemistry,
Faculty of Natural Science II (Chemistry, Physics and Mathematics), Martin-Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, Halle (Saale) D-06120, Germany
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18
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Chen S, Lechner BD, Meister A, Binder WH. Hierarchical Micelles via Polyphilic Interactions: Hydrogen-Bonded Supramolecular Dendrons and Double Immiscible Polymers. NANO LETTERS 2016; 16:1491-1496. [PMID: 26789930 DOI: 10.1021/acs.nanolett.5b05203] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report a simple strategy to form three-phase segregated hierarchical micelles via a counterbalanced phase segregation/self-assembly process. Our methodology relies on a cooperative polyphilic phase segregation, paralleled by a self-assembly process induced by hydrogen-bonds to afford the generation of supramolecular multicompartment dendrons. The versatile preparation of such hierarchical morphologies is evidenced on the basis of a series of supramolecular dendrons, composed of semifluorinated copolymers, homopolymers, or nonfluorinated polymers. We do have designed and prepared mid- and α,ω-barbiturate (Ba) functionalized poly(n-butyl acrylates), Ba-(PnBuA-Ba)2, together with a series of heterocomplementary α,ω-Hamilton wedge (HW) functionalized polymers via reversible addition-fragmentation chain transfer (co)polymerization. To enable subtle phase segregation processes, the semifluorinated homo- and copolymers HW-P(nBuA-co-PFPA)-HW (prepared via copolymerization of nBuA with 2,2,3,3,3-pentafluoropropyl acrylate (PFPA)) and HW-PPFPA-HW, as well as the nonfluorinated polymer HW-PnBuA-HW and HW-PI-HW (PI, polyisoprene), have been generated. Selective intermolecular complexation between Ba-(PnBuA-Ba)2 and the complementary polymers (such as HW-P(nBuA-co-PFPA)-HW, HW-PPFPA-HW or HW-PI-HW) leads to the successful generation of supramolecular dendrons as evidenced by (1)H NMR and diffusion-ordered NMR spectroscopy, together with the formation of well-defined disc-like nano-objects as demonstrated by microscopy investigations. Transmission electron microscopy demonstrates a unique, uncommon phase behavior showing remarkable three-phase segregated hierarchical micelles, indicative of the desired micellar multicompartments.
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Affiliation(s)
- Senbin Chen
- Chair of Macromolecular Chemistry, Faculty of Natural Science II (Chemistry, Physics, and Mathematics) and ‡Physical Chemistry, Faculty of Natural Sciences II (Chemistry, Physics, and Mathematics), Martin Luther University Halle-Wittenberg , von-Danckelmann-Platz 4, Halle (Saale) D-06120, Germany
| | - Bob-Dan Lechner
- Chair of Macromolecular Chemistry, Faculty of Natural Science II (Chemistry, Physics, and Mathematics) and ‡Physical Chemistry, Faculty of Natural Sciences II (Chemistry, Physics, and Mathematics), Martin Luther University Halle-Wittenberg , von-Danckelmann-Platz 4, Halle (Saale) D-06120, Germany
| | - Annette Meister
- Chair of Macromolecular Chemistry, Faculty of Natural Science II (Chemistry, Physics, and Mathematics) and ‡Physical Chemistry, Faculty of Natural Sciences II (Chemistry, Physics, and Mathematics), Martin Luther University Halle-Wittenberg , von-Danckelmann-Platz 4, Halle (Saale) D-06120, Germany
| | - Wolfgang H Binder
- Chair of Macromolecular Chemistry, Faculty of Natural Science II (Chemistry, Physics, and Mathematics) and ‡Physical Chemistry, Faculty of Natural Sciences II (Chemistry, Physics, and Mathematics), Martin Luther University Halle-Wittenberg , von-Danckelmann-Platz 4, Halle (Saale) D-06120, Germany
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Pin JM, Sbirrazzuoli N, Sacarescu L, Mija A. Star-epoxy mesogen with 1,3,5-triazine core: a model of A4B3fractal polymerization in a liquid crystalline thermoset media. Polym Chem 2016. [DOI: 10.1039/c5py01884f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of a star-epoxy monomer and design of a hierarchically organized thermoset involving both fractal and discotic mesogen self-assembly.
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Affiliation(s)
- Jean-Mathieu Pin
- Laboratoire de Physique de la Matière Condensée (LPMC) CNRS – UMR 7336 Université Nice Sophia Antipolis
- 06108 Nice Cedex 2
- France
| | - Nicolas Sbirrazzuoli
- Laboratoire de Physique de la Matière Condensée (LPMC) CNRS – UMR 7336 Université Nice Sophia Antipolis
- 06108 Nice Cedex 2
- France
| | - Liviu Sacarescu
- Institutul de Chimie Macromoleculara “Petru Poni” Aleea Grigore Ghica Voda
- 700487 Iasi
- Romania
| | - Alice Mija
- Laboratoire de Physique de la Matière Condensée (LPMC) CNRS – UMR 7336 Université Nice Sophia Antipolis
- 06108 Nice Cedex 2
- France
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20
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Tarai A, Baruah JB. Anion assisted conformationally guided self-assemblies of multi-component cocrystals of dioxime. CrystEngComm 2016. [DOI: 10.1039/c6ce01157h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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