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Chen Y, Ishiwari F, Fukui T, Kajitani T, Liu H, Liang X, Nakajima K, Tokita M, Fukushima T. Overcoming the entropy of polymer chains by making a plane with terminal groups: a thermoplastic PDMS with a long-range 1D structural order. Chem Sci 2023; 14:2431-2440. [PMID: 36873840 PMCID: PMC9977418 DOI: 10.1039/d2sc05491d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 01/03/2023] [Indexed: 01/05/2023] Open
Abstract
Due to its unique physical and chemical properties, polydimethylsiloxane (PDMS) is widely used in many applications, in which covalent cross-linking is commonly used to cure the fluidic polymer. The formation of a non-covalent network achieved through the incorporation of terminal groups that exhibit strong intermolecular interactions has also been reported to improve the mechanical properties of PDMS. Through the design of a terminal group capable of two-dimensional (2D) assembly, rather than the generally used multiple hydrogen bonding motifs, we have recently demonstrated an approach for inducing long-range structural ordering of PDMS, resulting in a dramatic change in the polymer from a fluid to a viscous solid. Here we present an even more surprising terminal-group effect: simply replacing a hydrogen with a methoxy group leads to extraordinary enhancement of the mechanical properties, giving rise to a thermoplastic PDMS material without covalent cross-linking. This finding would update the general notion that less polar and smaller terminal groups barely affect polymer properties. Based on a detailed study of the thermal, structural, morphological and rheological properties of the terminal-functionalized PDMS, we revealed that 2D assembly of the terminal groups results in networks of PDMS chains, which are arranged as domains with long-range one-dimensional (1D) periodic order, thereby increasing the storage modulus of the PDMS to exceed its loss modulus. Upon heating, the 1D periodic order is lost at around 120 °C, while the 2D assembly is maintained up to ∼160 °C. The 2D and 1D structures are recovered in sequence upon cooling. Due to the thermally reversible, stepwise structural disruption/formation as well as the lack of covalent cross-linking, the terminal-functionalized PDMS shows thermoplastic behavior and self-healing properties. The terminal group presented herein, which can form a 'plane', might also drive other polymers to assemble into a periodically ordered network structure, thereby allowing for significant modulation of their mechanical properties.
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Affiliation(s)
- Yugen Chen
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan.,Department of Chemical Science and Engineering, Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Fumitaka Ishiwari
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan.,Department of Chemical Science and Engineering, Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Tomoya Fukui
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan.,Department of Chemical Science and Engineering, Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Takashi Kajitani
- Open Facility Development Office, Open Facility Center, Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
| | - Haonan Liu
- Department of Chemical Science and Engineering, Tokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8550 Japan
| | - Xiaobin Liang
- Department of Chemical Science and Engineering, Tokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8550 Japan
| | - Ken Nakajima
- Department of Chemical Science and Engineering, Tokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8550 Japan
| | - Masatoshi Tokita
- Department of Chemical Science and Engineering, Tokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8550 Japan
| | - Takanori Fukushima
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan.,Department of Chemical Science and Engineering, Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan .,Living Systems Materialogy (LiSM) Research Group, International Research Frontiers Initiative (IRFI), Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku Yokohama 226-8503 Japan
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Paradiso V, Capaccio V, Lamparelli DH, Capacchione C. [OSSO]-bisphenolate metal complexes: A powerful and versatile tool in polymerization catalysis. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213644] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Zhang H, Cai C, Liu W, Li D, Zhang J, Zhao N, Xu J. Recyclable Polydimethylsiloxane Network Crosslinked by Dynamic Transesterification Reaction. Sci Rep 2017; 7:11833. [PMID: 28928370 PMCID: PMC5605709 DOI: 10.1038/s41598-017-11485-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 08/23/2017] [Indexed: 11/16/2022] Open
Abstract
This article reports preparation of a crosslinked polydimethylsiloxane (PDMS) network via dynamic transesterification reaction between PDMS-diglycidyl ether and pripol 1017 with Zn(OAc)2 as the catalyst. The thermal dynamic nature of the network was investigated by the creep-recovery and stress-relaxation tests. The synthesized PDMS elastomer showed excellent solvent resistance even under high temperature, and could be reprocessed by hot pressing at 180 °C with the mechanical properties maintained after 10 cycles. Application of the PDMS elastomer in constructing micro-patterned stamps repeatedly has been demonstrated. The high plastic temperature and good solvent resistance distinguish the research from other reported thermoplastic PDMS elastomers and broaden the practical application areas.
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Affiliation(s)
- Huan Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chao Cai
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenxing Liu
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Dongdong Li
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jiawei Zhang
- Division of Polymer and Composite Materials, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Ning Zhao
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Jian Xu
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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Tazawa S, Shimojima A, Maeda T, Hotta A. Thermoplastic polydimethylsiloxane with
l
‐phenylalanine‐based hydrogen‐bond networks. J Appl Polym Sci 2017. [DOI: 10.1002/app.45419] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Shunsuke Tazawa
- Department of Mechanical EngineeringKeio University3‐14‐1 Hiyoshi, Kohoku‐ku Yokohama223‐8522 Japan
| | - Atsushi Shimojima
- Department of Applied ChemistryWaseda University3‐4‐1 Okubo, Shinjuku‐ku Tokyo169‐8555 Japan
| | - Tomoki Maeda
- Department of Mechanical EngineeringKeio University3‐14‐1 Hiyoshi, Kohoku‐ku Yokohama223‐8522 Japan
| | - Atsushi Hotta
- Department of Mechanical EngineeringKeio University3‐14‐1 Hiyoshi, Kohoku‐ku Yokohama223‐8522 Japan
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Vielhauer M, Bodendorfer S, Lutz PJ, Friedrich C, Mülhaupt R. Isotactic Polystyrene Reactor Blends with Tailored Bimodal Molar Mass Distribution. Macromolecules 2013. [DOI: 10.1021/ma401770m] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Maximilian Vielhauer
- Freiburg Materials
Research Center (FMF), Albert-Ludwigs-Universität Freiburg i.Br., Stefan-Meier-Straße
21, D-79104 Freiburg, Germany
- Institute for Macromolecular Chemistry, Albert-Ludwigs-Universität Freiburg i.Br., Stefan-Meier-Straße 31, D-79104 Freiburg, Germany
| | - Simon Bodendorfer
- Freiburg Materials
Research Center (FMF), Albert-Ludwigs-Universität Freiburg i.Br., Stefan-Meier-Straße
21, D-79104 Freiburg, Germany
- Institute for Macromolecular Chemistry, Albert-Ludwigs-Universität Freiburg i.Br., Stefan-Meier-Straße 31, D-79104 Freiburg, Germany
| | - Pierre J. Lutz
- Institute Charles Sadron, University of Strasbourg, CNRS UPR 22, 23, rue du Loess, 67034 Strasbourg, France
| | - Christian Friedrich
- Freiburg Materials
Research Center (FMF), Albert-Ludwigs-Universität Freiburg i.Br., Stefan-Meier-Straße
21, D-79104 Freiburg, Germany
| | - Rolf Mülhaupt
- Freiburg Materials
Research Center (FMF), Albert-Ludwigs-Universität Freiburg i.Br., Stefan-Meier-Straße
21, D-79104 Freiburg, Germany
- Institute for Macromolecular Chemistry, Albert-Ludwigs-Universität Freiburg i.Br., Stefan-Meier-Straße 31, D-79104 Freiburg, Germany
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Li Z, Liu R, Mai B, Feng S, Wu Q, Liang G, Gao H, Zhu F. Synthesis and self-assembly of isotactic polystyrene-block-poly(ethylene glycol). Polym Chem 2013. [DOI: 10.1039/c2py20814h] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Vielhauer M, Lutz PJ, Reiter G, Mülhaupt R. Linear and star‐shaped POSS hybrid materials containing crystalline isotactic polystyrene chains. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26458] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Maximilian Vielhauer
- Freiburg Materials Research Center (FMF) and Institute for Macromolecular Chemistry, Albert‐Ludwigs‐Universität Freiburg i.Br., Stefan‐Meier‐Straße 21, D‐79104 Freiburg, Germany
| | - Pierre J. Lutz
- Institut Charles Sadron, CNRS UPR 22, University of Strasbourg, 23, rue de Loess, 67034 Strasbourg, France
| | - Günter Reiter
- Physikalisches Institut, Albert‐Ludwigs‐Universität Freiburg i.Br., Hermann‐Herderstraße 3, D‐79104 Freiburg, Germany
| | - Rolf Mülhaupt
- Freiburg Materials Research Center (FMF) and Institute for Macromolecular Chemistry, Albert‐Ludwigs‐Universität Freiburg i.Br., Stefan‐Meier‐Straße 21, D‐79104 Freiburg, Germany
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