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Cheawchan S, Sogawa H, Takata T. Phototriggered Crosslinking and Surface Modification via Catalyst‐Free Functionalization of a New Orthogonal Agent Containing Nitrile
N
‐Oxide and
o
‐Nitrobenzyl Ether Moieties. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202000459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sumitra Cheawchan
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2‐12‐1, Ookayama Meguro Tokyo 152–8552 Japan
| | - Hiromitsu Sogawa
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2‐12‐1, Ookayama Meguro Tokyo 152–8552 Japan
- Department of Chemistry and Materials Engineering Faculty of Chemistry Materials and Bioengineering Kansai University Suita Osaka 564–8680 Japan
| | - Toshikazu Takata
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2‐12‐1, Ookayama Meguro Tokyo 152–8552 Japan
- Graduate School of Advanced Science and Engineering Hiroshima University Kagamiyama Higashi‐Hiroshima Hiroshima 739–8527 Japan
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2
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Sogawa H, Wang CG, Monjiyama S, Akae Y, Takata T. Aliphatic ditopic nitrile N-oxide crosslinker: Synthesis, chemical stability, and catalyst-free crosslinking reactions. POLYMER 2021. [DOI: 10.1016/j.polymer.2020.123291] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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3
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Sogawa H, Tsutsuba T, Sakiyama N, Ikeda T, Takata T. Rotaxane-Based Difunctional Nitrile N-Oxide Crosslinker: Synthesis and Direct Introduction of Movable Crosslinking Points into Ethylene-Propylene-Butadiene Monomer (EPDM) Rubber. Macromol Rapid Commun 2020; 42:e2000639. [PMID: 33326129 DOI: 10.1002/marc.202000639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/19/2020] [Indexed: 11/06/2022]
Abstract
Incorporation of rotaxane scaffolds into the crosslinking points of polymer networks significantly affects their rheological and mechanical properties. The present study involves the synthesis of a new rotaxane-type crosslinker containing nitrile N-oxide functional groups on both the axle and wheel components. The prepared crosslinker is highly reactive; however, it can be isolated and applied in the crosslinking reaction of a commercially important polymer, namely ethylene-propylene-butadiene monomer rubber (EPDM), in the absence of additives and catalysts. Tensile tests reveal that compared to a network containing conventional crosslinking points, both breaking strength and strain of the network structure prepared herein are improved due to the incorporation of movable crosslinking points. The synthesized network structure also exhibits five times higher fracture energy. The developed post-crosslinking methodology for the direct introduction of movable crosslinking points into pre-formed polymers will be valuable in the production of rotaxane materials for various applications.
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Affiliation(s)
- Hiromitsu Sogawa
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8552, Japan.,Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka, 564-8680, Japan
| | - Toyokazu Tsutsuba
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Naoto Sakiyama
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Tatsuhito Ikeda
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Toshikazu Takata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8552, Japan.,Graduate School of Advanced Science and Engineering, Hiroshima University, Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8527, Japan
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4
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Nitrile N-oxide-terminated poly(γ-benzyl l-glutamate) (PBLG): synthesis and catalyst-free grafting onto polybutadiene (PBD) and natural rubber (NR). Polym J 2020. [DOI: 10.1038/s41428-020-0370-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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5
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Wang C, Cheawchan S, Qiagedeer A, Monjiyama S, Uchida S, Koyama Y, Takata T. Simple Chemical Modification Using Perfluoroalkyl‐Substituted Stable Nitrile
N
‐Oxide on Bulk Surface via Catalyst‐Free Click Reaction. ChemistrySelect 2020. [DOI: 10.1002/slct.202000809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Chen‐Gang Wang
- School of Materials and Chemical Technology and RIPSTResearch Institute of Polymer Science and Technology) Tokyo Institute of Technology and JST-CREST Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
| | - Sumitra Cheawchan
- School of Materials and Chemical Technology and RIPSTResearch Institute of Polymer Science and Technology) Tokyo Institute of Technology and JST-CREST Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
| | - Airong Qiagedeer
- School of Materials and Chemical Technology and RIPSTResearch Institute of Polymer Science and Technology) Tokyo Institute of Technology and JST-CREST Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
| | - Shunsuke Monjiyama
- School of Materials and Chemical Technology and RIPSTResearch Institute of Polymer Science and Technology) Tokyo Institute of Technology and JST-CREST Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
| | - Satoshi Uchida
- School of Materials and Chemical Technology and RIPSTResearch Institute of Polymer Science and Technology) Tokyo Institute of Technology and JST-CREST Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
| | - Yasuhito Koyama
- Department of Pharmaceutical Engineering, Faculty of EngineeringToyama Prefectural University 5180 Kurokawa Imizu, Toyama 939-0398 Japan
| | - Toshikazu Takata
- School of Materials and Chemical Technology and RIPSTResearch Institute of Polymer Science and Technology) Tokyo Institute of Technology and JST-CREST Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
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6
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Tsutsuba T, Sogawa H, Takata T. Polyester nitrile N-oxides for click reactions synthesized with nitroalkane precursors as the initiator. Polym Chem 2020. [DOI: 10.1039/d0py00278j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Polyesters that have a nitrile N-oxide function at the initiation end were prepared and applied to a catalyst-free click reaction for star polymer synthesis.
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Affiliation(s)
- Toyokazu Tsutsuba
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology 4259 Nagatsuta
- Yokohama 226-8503
- Japan
| | - Hiromitsu Sogawa
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology 4259 Nagatsuta
- Yokohama 226-8503
- Japan
| | - Toshikazu Takata
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology 4259 Nagatsuta
- Yokohama 226-8503
- Japan
- JST-CREST
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7
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Arslan M, Acik G, Tasdelen MA. The emerging applications of click chemistry reactions in the modification of industrial polymers. Polym Chem 2019. [DOI: 10.1039/c9py00510b] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Click chemistry reactions have been applied to the modification of major industrial polymers by analysing the synthetic approaches and the resulting material properties.
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Affiliation(s)
- Mehmet Arslan
- Department of Polymer Engineering
- Faculty of Engineering
- Yalova University
- 77100 Yalova
- Turkey
| | - Gokhan Acik
- Department of Polymer Engineering
- Faculty of Engineering
- Yalova University
- 77100 Yalova
- Turkey
| | - Mehmet Atilla Tasdelen
- Department of Polymer Engineering
- Faculty of Engineering
- Yalova University
- 77100 Yalova
- Turkey
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