A NOVEL MICELLAR SYNTHESIS AND PHOTOPHYSICAL CHARACTERIZATION OF WATER-SOLUBLE ACRYLAMIDE STYRENE BLOCK COPOLYMERS

被引：175

作者：

DOWLING, KC ^{[1
]}

THOMAS, JK ^{[1
]}

机构：

[1] UNIV NOTRE DAME,DEPT CHEM,NOTRE DAME,IN 46556

来源：

MACROMOLECULES | 1990年 / 23卷 / 04期

关键词：

D O I：

10.1021/ma00206a025

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A novel micellar polymerization was utilized in the one-step synthesis of water-soluble block copolymers of acrylamide and styrene and in the control of styrene block sizes in the predominantly acrylamide polymer chain. Block sizes were determined from Poisson fluorescence quenching kinetics and ranged from 14 to 30 styrenes. Fine structure in pyrene probe fluorescence revealed that the blocks impart hydrophobic domains to aqueous copolymer solutions. Fluorescence quenching was monitored to determine that the copolymers isolate and screen hydrophobic molecules from the aqueous phase. A coiled configuration of the polyacrylamide backbone about the styrene blocks is shown to be a contributor to the screening effect. © 1990, American Chemical Society. All rights reserved.

引用

页码：1059 / 1064

页数：6

共 19 条

[1]

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