THERMODYNAMICS OF POLY(ETHYLENE OXIDE) POLY(METHYL METHACRYLATE) BLENDS - PREDICTION OF MISCIBILITY BASED ON THE CORRESPONDING-STATES THEORY

被引:30
|
作者
PEDEMONTE, E
POLLERI, V
TURTURRO, A
CIMMINO, S
SILVESTRE, C
MMARTUSCELLI, E
机构
[1] CNR,CTR STUDI CHIMICOFIS MACROMOLEC SINTET & NAT,I-16132 GENOA,ITALY
[2] CNR,IST RIC TECNOL POLIMERI & REOL,I-80072 ARCO,ITALY
关键词
MISCIBILITY; POLY)ETHYLENE OXIDE); POLY(METHYL METHACRYLATE);
D O I
10.1016/0032-3861(94)90134-1
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 compatibility of the poly(ethylene oxide)-atactic poly(methyl methacrylate) (PEO-aPMMA) system has been studied using Patterson's theory of polymer-polymer miscibility. Specific volumes and thermal pressure coefficients for both polymers have been accurately determined; the characteristic parameters V*, T* and P* are obtained from the experimental results. Experimental heat-of-mixing data were used to calculate the interaction energy between the two components. The shape of the curve Of chi12/V1* versus temperature indicates that PEO-aPMMA mixtures are miscible in the liquid state over all the composition and temperature range explored.
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页码:3278 / 3281
页数:4
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