Further experimental evidence for intramolecular screening in polymer blends

被引：11

作者：

Coleman, MM ^{[1
]}

Narvett, LA ^{[1
]}

Park, YH ^{[1
]}

Painter, PC ^{[1
]}

机构：

[1] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

来源：

JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS | 1998年 / B37卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1080/00222349808220473

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Intramolecular screening in hydrogen-bonded polymer blends has its genesis in chain connectivity. The covalent linkages that occur between polymer segments results in an accentuation of the number of same-chain contacts compared to that calculated on the basis of a simple random mixing of segments. Using experimental infrared spectroscopic data derived from blends of random copolymers of n-butyl methacrylate-stat-4-vinylphenol with styrene-stat-2-vinyl pyridine, strong evidence for the presence of intramolecular screening has been obtained. This is a significant factor that must be taken into consideration in theories of the mixing of polymers.

引用

页码：283 / 299

页数：17

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