POLYMERIZATION AND PROPERTIES OF OPTICALLY-ACTIVE ALPHA-(P-SUBSTITUTED BENZENESULFONAMIDO)-BETA-LACTONES

被引：11

作者：

JARM, V ^{[1
]}

FLES, D ^{[1
]}

机构：

[1] INA,INST RES & DEV,ZAGREB,YUGOSLAVIA

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1977年 / 15卷 / 05期

关键词：

CATALYSTS - Butyllithium Compounds - CHEMICAL REACTIONS - Reaction Kinetics - POLYMERIZATION - POLYMERS - Optical Properties;

D O I：

10.1002/pol.1977.170150504

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In the reported experiments, optically active alpha -(p-substituted benzenesulfonamido)- beta -lactones having as parasubstituents OME, Me, H, and Cl were polymerized in bulk, in ethyl acetate solution with triethylamine or betaine, and in dioxane with butyllithium as initiators. The rate of polymerization was followed by the change of specific rotation with time and was decreasing in following order or para substituents: OME greater than Me greater than H greater than Cl. The relative reactivity in logarithmic form was plotted against Hammett's sigma functions showing a linear relationship with reaction constant rho equals minus 0. 57.

引用

页码：1061 / 1071

页数：11

共 32 条

[1]

BERLINGOZZI S, 1927, GAZZ CHIM ITAL, V57, P814

[2] RESOLUTION OF RACEMIC ALPHA-AMINO ACIDS .1. NEUTRAL ALPHA-AMINO ACIDS [J].