Thermodynamics of blends of poly(ethylene oxide) with poly(methyl methacrylate) and poly(vinyl acetate): prediction of miscibility based on Flory solution theory modified by Hamada

被引：16

作者：

Chen, X

Yin, JH ^{[1
]}

Alfonso, GC

Pedemonte, E

Turturro, A

Gattiglia, E

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Polymer Phys Lab, Changchun 130022, Peoples R China

[2] Univ Genova, Dipartimento Chim & Chim Ind, I-16146 Genoa, Italy

[3] CNR, Ist Studi Chim Fis Macromol Sintet & Nat, I-16149 Genova, Italy

来源：

POLYMER | 1998年 / 39卷 / 20期

关键词：

thermodynamics; blends; interaction parameter;

D O I：

10.1016/S0032-3861(97)10352-4

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Flory solution theory modified by Hamada et al. (Macromolecules, 1980, 13, 729) was used to predict the miscibility of blends of poly(ethylene oxide) with poly(methyl methacrylate) (PEO-aPMMA) and with poly(vinyl acetate) (PEO-PVAc). Interaction parameters of a PEO-aPMMA blend with the weight ratio of PEO/aPMMA = 50/50 at the temperature range of 393-433 K and PEO-PVAc blends with different compositions and temperatures were calculated from the determined equation-of-state parameters based on Flory solution theory modified by Hamada ed al. Results show that interaction parameters of the PEO-aPMMA blend are negative and can be comparable with values obtained from neutron-scattering measurements by Ito et al. (Macromolecules, 1987, 20, 2213). Also, interaction parameters and excess volumes of PEO-PVAc blends are negative and increase with enhancing the content of PEO and the temperature. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：4929 / 4935

页数：7

共 38 条

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