Recyclable solid-supported catalysts for quaternary ammonium iodide-catalyzed living radical polymerization
Quaternary ammonium iodide (R4N+I-) catalysts immobilized on silica particles, Fe3O4 magnetic particles, and organic resin particles were developed for organocatalyzed living radical polymerization. A random copolymer containing the catalytic R4N+I- moieties and the anchoring triethoxysilyl moieties...
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sg-ntu-dr.10356-1377072023-02-28T19:51:24Z Recyclable solid-supported catalysts for quaternary ammonium iodide-catalyzed living radical polymerization Wang, Chen Gang Chang, Jun Jie Foo, Ellendea Yong Jing Niino, Hiroshi Chatani, Shunsuke Hsu, Shu Yao Goto, Atsushi School of Physical and Mathematical Sciences Science::Chemistry Anions Monomers Quaternary ammonium iodide (R4N+I-) catalysts immobilized on silica particles, Fe3O4 magnetic particles, and organic resin particles were developed for organocatalyzed living radical polymerization. A random copolymer containing the catalytic R4N+I- moieties and the anchoring triethoxysilyl moieties was synthesized and immobilized onto silica and Fe3O4 particles to give the silica particle- and Fe3O4 particle-supported R4N+I- catalysts. A tertiary-amine-containing polymer resin particle was quaternized to give the resin particle-supported R4N+I- catalyst. The supported catalysts were successfully used to synthesize homopolymers and block copolymers of methyl methacrylate, functional methacrylates, styrene, and acrylonitrile with low dispersities. The supported catalysts were able to be separated (recovered) from the polymerization solutions in simple manners, that is, with centrifugation or with a magnet. The catalysts were reused in five polymerization cycles without a noticeable decrease in the catalytic efficiency. The facile preparation of the supported catalysts, the broad monomer scope, and the feasibility of the catalyst reuse and recycle are attractive features. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Accepted version 2020-04-09T04:27:32Z 2020-04-09T04:27:32Z 2019 Journal Article Wang, C.-G., Chang, J. J., Foo, E. Y. J., Niino, H., Chatani, S., Hsu, S. Y., & Goto, A. (2019). Recyclable solid-supported catalysts for quaternary ammonium iodide-catalyzed living radical polymerization. Macromolecules, 53(1), 51-58. doi:10.1021/acs.macromol.9b02266 0024-9297 https://hdl.handle.net/10356/137707 10.1021/acs.macromol.9b02266 2-s2.0-85077075680 1 53 51 58 en Macromolecules © 2019 American Chemical Society. All rights reserved. This paper was published in Macromolecules and is made available with permission of American Chemical Society." application/pdf |
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Science::Chemistry Anions Monomers Wang, Chen Gang Chang, Jun Jie Foo, Ellendea Yong Jing Niino, Hiroshi Chatani, Shunsuke Hsu, Shu Yao Goto, Atsushi Recyclable solid-supported catalysts for quaternary ammonium iodide-catalyzed living radical polymerization |
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Quaternary ammonium iodide (R4N+I-) catalysts immobilized on silica particles, Fe3O4 magnetic particles, and organic resin particles were developed for organocatalyzed living radical polymerization. A random copolymer containing the catalytic R4N+I- moieties and the anchoring triethoxysilyl moieties was synthesized and immobilized onto silica and Fe3O4 particles to give the silica particle- and Fe3O4 particle-supported R4N+I- catalysts. A tertiary-amine-containing polymer resin particle was quaternized to give the resin particle-supported R4N+I- catalyst. The supported catalysts were successfully used to synthesize homopolymers and block copolymers of methyl methacrylate, functional methacrylates, styrene, and acrylonitrile with low dispersities. The supported catalysts were able to be separated (recovered) from the polymerization solutions in simple manners, that is, with centrifugation or with a magnet. The catalysts were reused in five polymerization cycles without a noticeable decrease in the catalytic efficiency. The facile preparation of the supported catalysts, the broad monomer scope, and the feasibility of the catalyst reuse and recycle are attractive features. |
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School of Physical and Mathematical Sciences |
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School of Physical and Mathematical Sciences Wang, Chen Gang Chang, Jun Jie Foo, Ellendea Yong Jing Niino, Hiroshi Chatani, Shunsuke Hsu, Shu Yao Goto, Atsushi |
format |
Article |
author |
Wang, Chen Gang Chang, Jun Jie Foo, Ellendea Yong Jing Niino, Hiroshi Chatani, Shunsuke Hsu, Shu Yao Goto, Atsushi |
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Wang, Chen Gang |
title |
Recyclable solid-supported catalysts for quaternary ammonium iodide-catalyzed living radical polymerization |
title_short |
Recyclable solid-supported catalysts for quaternary ammonium iodide-catalyzed living radical polymerization |
title_full |
Recyclable solid-supported catalysts for quaternary ammonium iodide-catalyzed living radical polymerization |
title_fullStr |
Recyclable solid-supported catalysts for quaternary ammonium iodide-catalyzed living radical polymerization |
title_full_unstemmed |
Recyclable solid-supported catalysts for quaternary ammonium iodide-catalyzed living radical polymerization |
title_sort |
recyclable solid-supported catalysts for quaternary ammonium iodide-catalyzed living radical polymerization |
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2020 |
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https://hdl.handle.net/10356/137707 |
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1759853412042670080 |