Determination of the Flory-Huggins interaction parameter of styrene and 4-vinylpyridine using copolymer blends of poly(styrene-co-4-vinylpyridine) and polystyrene

被引:0
|
作者
van Ekenstein, GORA
Meyboom, R
ten Brinke, G
Ikkala, O
机构
[1] Univ Groningen, Polymer Chem Lab, NL-9747 AG Groningen, Netherlands
[2] Univ Groningen, Ctr Mat Sci, NL-9747 AG Groningen, Netherlands
[3] Helsinki Univ Technol, Phys Mat Lab, Dept Engn Phys & Math, FIN-02015 Espoo, Finland
关键词
D O I
10.1021/ma992118+
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
On the basis of the experimentally determined phase behavior in blends of polystyrene and random copolymers of styrene and 4-vinylpyridine, i.e., P(S-x-co-4VP(1-x))/PS, the Flory-Huggins interaction parameter is demonstrated to satisfy 0.30 < chi(S,4VP) less than or equal to 0.35. This value is substantially smaller than reported before. To corroborate our results, a similar study was performed using 2-vinylpyridine leading to 0.09 < chi(S,2VP) less than or equal to 0.11, in excellent agreement with the well-established value of chi(S,2VP) = 0.1.
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收藏
页码:3752 / 3756
页数:5
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