The formation of a stable, helical conformation in poly(N-propargylamides) through synergic effects among their pendent groups

被引：19

作者：

Deng, Jianping

Zhao, Weiguo

Wang, Jianmin

Zhang, Zhigang

Yang, Wantai ^{[1
]}

机构：

[1] State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

[2] Beijing Univ Chem Technol, Coll Mat Sci & Engn, Beijing 100029, Peoples R China

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2007年 / 208卷 / 02期

关键词：

conformational transition; helix; N-propargylamide; random coils; synergic effects;

D O I：

10.1002/macp.200600458

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Copolymerization reactions of two N-propargylamides [1: HC equivalent to CCH2NHCO(CH2)(5)CH3,2: (HC equivalent to CCH2NHCOC(CH3)(3)]were carried out with different monomer feed ratios. Compared with the two corresponding homopolymers, the series of resulting copolymers poly(1-co-2) had a higher helix content. They also performed very differently in conformational transitions, either from random coil to helix or from helix to random coil, mainly depending on the composition of the copolymers. Synergic effects among the pendent groups played a significant role in the copolymer main chains adopting stable helices.

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收藏

页码：218 / 223

页数：6

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