PHYSICAL GELS OF AQUEOUS POLY(VINYL ALCOHOL) SOLUTIONS - A SMALL-ANGLE NEUTRON-SCATTERING STUDY

被引：65
|
作者：
WU, WL
SHIBAYAMA, M
ROY, S
KUROKAWA, H
COYNE, LD
NOMURA, S
STEIN, RS
机构：
[1] KYOTO INST TECHNOL,DEPT POLYMER SCI & ENGN,KYOTO 606,JAPAN
[2] UNIV MASSACHUSETTS,POLYMER RES INST,AMHERST,MA 01003
来源：
MACROMOLECULES | 1990年 / 23卷 / 08期
关键词：
D O I：
10.1021/ma00210a020
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 melting behavior of aqueous poly(vinyl alcohol) gels was studied by using small-angle neutron scattering. Emphasis was placed on solutions with a polymer concentration around ϕ, the concentration threshold at which the polymer chains start to overlap. At this particular concentration, a maximum was observed in the polymer-polymer correlation length and the zero angle scattering intensity as the gel was melted. An attempt to interpret this observed maximum in terms of a simple two-phase model will be presented. © 1990, American Chemical Society. All rights reserved.
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页码：2245 / 2251
页数：7
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