Concurrent Cationic Vinyl-Addition and Coordination Ring-Opening Copolymerization via Orthogonal Propagation and Transient Merging at the Propagating Chain End

Higuchi, Motoki; Kanazawa, Arihiro; Aoshima, Sadahito

ACS Macro Letters, 2017, 6(4), 365-369

Number of Access:11（2025-04-28 14:24 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/100921

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Title
Concurrent Cationic Vinyl-Addition and Coordination Ring-Opening Copolymerization via Orthogonal Propagation and Transient Merging at the Propagating Chain End
Creator
CreatorName
Higuchi, Motoki
NRID
1000050621322 1000050621322
ORCID
0000-0002-8245-6014 0000-0002-8245-6014
researchmap permalink
arihiro-kanazawa arihiro-kanazawa
Scopus Author ID
9044912600 9044912600
CreatorName
Kanazawa, Arihiro
NRID
1000050183728 1000050183728
CreatorName
Aoshima, Sadahito
Description
Higuchi M., Kanazawa A., Aoshima S.. Concurrent Cationic Vinyl-Addition and Coordination Ring-Opening Copolymerization via Orthogonal Propagation and Transient Merging at the Propagating Chain End. ACS Macro Letters 6, 365 (2017); https://doi.org/10.1021/acsmacrolett.7b00095.
Abstract
Controlled cationic vinyl-addition polymerization of an alkyl vinyl ether (VE) and ring-opening polymerization of ε-caprolactone (CL) simultaneously proceeded using HfCl4/Hf(OBu)4 as a dual-role catalyst for both mechanisms, yielding a graft copolymer consisting of a poly(VE) main chain and several poly(CL) side chains. The copolymer of conventionally incompatible monomers was generated via the unprecedented mechanisms consisting of orthogonal propagating reactions and transient merging. Specifically, the poly(CL) chains were incorporated into a poly(VE) chain through an exchange reaction between the VE-derived alkoxy group and the propagating poly(CL) chain at the acetal moiety of the propagating end of the poly(VE) chain. An appropriate ratio of HfCl4 and Hf(OBu)4 was indispensable for both the simultaneous vinyl-addition and ring-opening polymerizations and the alkoxy group exchange reaction.
Publisher
American Chemical Society
Source Title
ACS Macro Letters
Volume (Issue)
6(4)
Page
365-369
Date of Issued
2017-04-18
Language
English
Handle URL
https://hdl.handle.net/11094/100921
eISSN
21611653
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1021/acsmacrolett.7b00095
Access Rights
open access
CopyRight
This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Macro Letters, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work seehttps://doi.org/10.1021/acsmacrolett.7b00095
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article