Stereospecific polymerization of propiolic acid with rhodium complexes in the presence of bases and helix induction on the polymer in water

被引：110

作者：

Maeda, K

Goto, H

Yashima, E ^{[1
]}

机构：

[1] Nagoya Univ, Grad Sch Engn, Dept Mol Design & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[2] JST, PRESTO, Chikusa Ku, Nagoya, Aichi 4648603, Japan

来源：

MACROMOLECULES | 2001年 / 34卷 / 05期

关键词：

D O I：

10.1021/ma001651i

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Propiolic acid was directly polymerized in water with water-soluble rhodium complexes in the presence of bases such as NaOH to yield the cis-transoidal poly(propiolic acid) sodium salt (poly-1-Na) in high yields. Moreover, poly-1-Na exhibited an induced circular dichroism (ICD) in the UV-visible region in water due to the formation of a predominantly one-handed helical structure responding to the chirality of the optically active amino alcohols. The stereoregularity of the polymer decreased when the poly-1-Na was converted into the acid form, poly(propiolic acid). However, poly(propiolic acid) also showed ICDs in the UV-visible region in water in the presence of optically active amino alcohols.

引用

页码：1160 / 1164

页数：5

共 36 条

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