Solid‐phase radical polymerization of halogen‐bond‐based crystals and applications to pre‐shaped polymer materials

Solid‐phase radical polymerization of halogen‐bond‐based crystals and applications to pre‐shaped polymer materials

Liquid vinyl monomers were converted into solid crystals via halogen bonding. They underwent solid‐phase radical polymerizations through heating at 40 °C or ultraviolet photo‐irradiation (365 nm). The X‐ray crystallography analysis showed the high degree of monomer alignment in the crystals. The pol...

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Main Authors: Le, Hong Tho, Wang, Chen-Gang, Goto, Atsushi
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2020
Subjects:
Science::Chemistry
Crystal Engineering
Halogen Bonding
Online Access:https://hdl.handle.net/10356/141187
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1411872023-02-28T19:47:44Z Solid‐phase radical polymerization of halogen‐bond‐based crystals and applications to pre‐shaped polymer materials Le, Hong Tho Wang, Chen-Gang Goto, Atsushi School of Physical and Mathematical Sciences Science::Chemistry Crystal Engineering Halogen Bonding Liquid vinyl monomers were converted into solid crystals via halogen bonding. They underwent solid‐phase radical polymerizations through heating at 40 °C or ultraviolet photo‐irradiation (365 nm). The X‐ray crystallography analysis showed the high degree of monomer alignment in the crystals. The polymerizations of the solid monomer crystals yielded polymers with high molecular weights and relatively low dispersities because of the high degree of the monomer alignment in the crystal. As a unique application of this system, the crystalized monomers were assembled to pre‐determined structures, followed by solid‐phase polymerization, to obtain a two‐layer polymer sheet and a three‐dimensional house‐shaped polymer material. The two‐layer sheet contained a unique asymmetric pore structure and exhibited a solvent‐responsive shape memory property and may find applications to asymmetric membranes and polymer actuators. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Accepted version 2020-06-04T13:08:57Z 2020-06-04T13:08:57Z 2020 Journal Article Le, H. T., Wang, C.-G., & Goto, A. (2020). Solid‐phase radical polymerization of halogen‐bond‐based crystals and applications to pre‐shaped polymer materials. Angewandte Chemie, 132(24), 9446-9450. doi:10.1002/ange.202001544 0044-8249 https://hdl.handle.net/10356/141187 10.1002/ange.202001544 24 132 9446 9450 en Angewandte Chemie This is the accepted version of the following article: Le, H. T., Wang, C.-G., & Goto, A. (2020). Solid‐phase radical polymerization of halogen‐bond‐based crystals and applications to pre‐shaped polymer materials. Angewandte Chemie, 132(24), 9446-9450. doi:10.1002/ange.202001544, which has been published in final form at https://doi.org/10.1002/ange.202001544. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [https://authorservices.wiley.com/authorresources/Journal-Authors/licensing/self-archiving.html]. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Chemistry
Crystal Engineering
Halogen Bonding
spellingShingle Science::Chemistry
Crystal Engineering
Halogen Bonding
Le, Hong Tho
Wang, Chen-Gang
Goto, Atsushi
Solid‐phase radical polymerization of halogen‐bond‐based crystals and applications to pre‐shaped polymer materials
description Liquid vinyl monomers were converted into solid crystals via halogen bonding. They underwent solid‐phase radical polymerizations through heating at 40 °C or ultraviolet photo‐irradiation (365 nm). The X‐ray crystallography analysis showed the high degree of monomer alignment in the crystals. The polymerizations of the solid monomer crystals yielded polymers with high molecular weights and relatively low dispersities because of the high degree of the monomer alignment in the crystal. As a unique application of this system, the crystalized monomers were assembled to pre‐determined structures, followed by solid‐phase polymerization, to obtain a two‐layer polymer sheet and a three‐dimensional house‐shaped polymer material. The two‐layer sheet contained a unique asymmetric pore structure and exhibited a solvent‐responsive shape memory property and may find applications to asymmetric membranes and polymer actuators.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Le, Hong Tho
Wang, Chen-Gang
Goto, Atsushi
format Article
author Le, Hong Tho
Wang, Chen-Gang
Goto, Atsushi
author_sort Le, Hong Tho
title Solid‐phase radical polymerization of halogen‐bond‐based crystals and applications to pre‐shaped polymer materials
title_short Solid‐phase radical polymerization of halogen‐bond‐based crystals and applications to pre‐shaped polymer materials
title_full Solid‐phase radical polymerization of halogen‐bond‐based crystals and applications to pre‐shaped polymer materials
title_fullStr Solid‐phase radical polymerization of halogen‐bond‐based crystals and applications to pre‐shaped polymer materials
title_full_unstemmed Solid‐phase radical polymerization of halogen‐bond‐based crystals and applications to pre‐shaped polymer materials
title_sort solid‐phase radical polymerization of halogen‐bond‐based crystals and applications to pre‐shaped polymer materials
publishDate 2020
url https://hdl.handle.net/10356/141187
_version_ 1759856982923149312

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