Synthesis of novel mono-substituted polyacetylenes bearing functional urea groups in side chains

被引：10

作者：

Deng, Hanping

Zhao, Weiguo

Yang, Wantai ^{[1
]}

机构：

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

[2] State Key Lab Chem Res Engn, Beijing, Peoples R China

来源：

REACTIVE & FUNCTIONAL POLYMERS | 2007年 / 67卷 / 09期

基金：

中国国家自然科学基金;

关键词：

substituted polyacetylenes; n-propargylurea monomers; rhodium catalysts; polymerization; characterization;

D O I：

10.1016/j.reactfunctpolym.2006.12.009

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Novel mono-substituted polyacetylenes bearing urea groups in side chains, i.e. poly(N-propargylureas), were successfully synthesized for the first time. The solubility of the resulting three polymers (poly(1)-poly(3)) was examined, and it was found that the solubility of them largely depended on the pendent groups; the polymer with benzene cycle (poly(2)) showed high solubility in polar solvents including DMF and DMSO. The effects of polymerization temperature, solvents, and the ratio of monomer concentration to the catalyst concentration ((nbd)Rh+B-(C6H5)(4) (nbd = norbornadiene)) on the polymerization of monomer 2 were investigated. Poly(2) could be obtained with moderate molecular weights (20,100-29,200) in high yields (>= 90%), and the cis content of the polymer backbones was quite high (>= 96%). (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：828 / 835

页数：8

共 50 条

[1] Helical polyacetylene synthesized with a chiral nematic reaction field [J].