Study on the UCST behavior of polystyrene/poly(styrene-co-acrylonitrile) blend

被引：13
|
作者：
Yang, Q [1 ]
Mao, YM [1 ]
Li, GX [1 ]
Huang, YJ [1 ]
Tang, P [1 ]
Lei, CH [1 ]
机构：
[1] Sichuan Univ, Coll Polymer Mat Sci & Engn, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China
来源：
MATERIALS LETTERS | 2004年 / 58卷 / 30期
基金：
中国国家自然科学基金;
关键词：
light scattering; UCST behavior; polystyrene/poly (styrene-co-acrylonitrile);
D O I：
10.1016/j.matlet.2004.08.024
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The miscibility of binary polymer blends of polystyrene/poly(styrene-co-acrylonitrile) (PS/SAN) was predicted based on both Flory's equation of state theory (EOS) and Wolf's theory on binary polymer blends of the A/A-B type. The calculating results suggested that PS/SAN blend exhibits the upper critical solution temperature (UCST) behavior within acrylonitrile's volume fraction range of 4-20%. PS/SAN blends were studied with the Small Angle Light Scattering (SALS) method to test the theoretical prediction. It showed that PS/SAN (AN:20 vol.%) blend (49/51 wt.%) displays UCST behavior and the UCST temperature was about 171 degreesC. The calculating and the experimental results were in accordance with each other relatively well. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：3939 / 3944
页数：6
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