SYNCHROTRON-GENERATED TIME-RESOLVED FLUORESCENCE ANISOTROPY STUDIES OF THE SEGMENTAL RELAXATION OF POLY(ACRYLIC ACID) AND POLY(METHACRYLIC ACID) IN DILUTE METHANOLIC SOLUTIONS

被引：58

作者：

SOUTAR, I

SWANSON, L

IMHOF, RE

RUMBLES, G

机构：

[1] UNIV STRATHCLYDE,DEPT PURE & APPL PHYS,GLASGOW G4 0NG,SCOTLAND

[2] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED,DEPT CHEM,LONDON SW7 2AY,ENGLAND

来源：

MACROMOLECULES | 1992年 / 25卷 / 17期

关键词：

D O I：

10.1021/ma00043a024

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The segmental relaxation of poly(acrylic acid), PAA, and poly(methacrylic acid), PMAA, in dilute methanolic solutions has been studied using time-resolved fluorescence anisotropy. The anisotropy data, as analyzed by a variety of data retrieval procedures, indicate that a single exponential function is sufficient in description of the relaxational behavior of these systems. The segmental motions of PAA and PMAA in methanol are characterized by rotational correlation times of ca. 1.3 and 4.2 ns, respectively.

引用

页码：4399 / 4405

页数：7

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