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Phenol‐yne Click Polymerization: An Efficient Technique to Facilely Access Regio‐ and Stereoregular Poly(vinylene ether ketone)s
Author(s) -
Shi Yang,
Bai Tianwen,
Bai Wei,
Wang Zhe,
Chen Ming,
Yao Bicheng,
Sun Jing Zhi,
Qin Anjun,
Ling Jun,
Tang Ben Zhong
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201702966
Subject(s) - polymer chemistry , ketone , polymerization , click chemistry , phenol , ether , lewis acids and bases , alkyne , polymer , catalysis , functional polymers , materials science , chemistry , organic chemistry
Alkyne‐based click polymerizations have been well‐established. However, in order to expand the family to synthesize polymers with new structures and novel properties, new types of click polymerizations are highly demanded. In this study, for the first time, we established a new efficient and powerful phenol‐yne click polymerization. The activated diynes and diphenols could be facilely polymerized in the presence of the Lewis base catalyst of 4‐dimethylaminopyridine (DMAP) under mild reaction conditions. Regio‐ and stereoregular poly(vinylene ether ketone)s (PVEKs) with high molecular weights (up to 35 200) were obtained in excellent yields (up to 99.0 %). The reaction mechanism was well explained under the assistance of density functional theory (DFT) calculation. Furthermore, since the vinyl ether sequence acts as a stable but acid‐liable linkage, the polymers could be decomposed under acid conditions, rendering them applicable in biomedical and environmental fields.