| 聚氧化乙烯和聚醋酸乙烯酯共混热力学参数的理论估算 |
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| 引用本文： | 殷敬华,张宏放,庞德仁,阎春珍,杨宝泉.聚氧化乙烯和聚醋酸乙烯酯共混热力学参数的理论估算[J].高分子学报,1994,0(3):348-353. |
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| 作者姓名： | 殷敬华 张宏放 庞德仁 阎春珍 杨宝泉 |
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| 作者单位： | 中国科学院长春应用化学研究所高分子物理联合开放研究实验室 |
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| 摘 要： | 实验测定了聚氧化乙烯（ＰＥＯ）和聚醋酸乙烯酯（ＰＶＡｃ）的共混热以及共混组分的热压系数和热膨胀系数．并由上述实测值计算了状态方程参数．用Ｈａｍａｄａ~［１－２］等改进的Ｆｌｏｒｙ状态方程理论估算了ＰＥＯ／ＰＶＡｃ混体系的交换能参数（Ｘ_１２）、相互作用参数（ｘ_１２／ｒ_１）和剩余混合体积（Ｖ~Ｅ／Ｖ~０）．
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| 关 键 词： | 共混热焓，相互作用参数，剩余混合体积，聚氧化乙烯，聚醋酸，乙烯酯 |
| 收稿时间： | 1992-10-12 |
APPLICATION OF EQUATION -OF - STATE THEORY TO POLY(ETHYLENE OXIDE) AND POLY (VINYL ACETATE) BLENDING SYSTEM |
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| YIN Jing-hua,ZHANG Hong-fang,PANG De-ren,YAN Chun-zhen,YANG Bao-quan.APPLICATION OF EQUATION -OF - STATE THEORY TO POLY(ETHYLENE OXIDE) AND POLY (VINYL ACETATE) BLENDING SYSTEM[J].Acta Polymerica Sinica,1994,0(3):348-353. |
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| Authors: | YIN Jing-hua ZHANG Hong-fang PANG De-ren YAN Chun-zhen YANG Bao-quan |
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| Institution: | Polymer Physics Laboratory; Changchun Institute of Applied Chemistry; Academia Sinica; Changchun; 130022 |
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| Abstract: | lory's equation-of-state theory with modified combinary rules was applied to estimate the thermodynamic parameters of poly (ethylene oxide ) and poly(vinyl acetate) blending system. For this purpose, heats of mixing , densities, thermal expansion coefficients and thermal pressure coefficients for this system were measured. The heats of mixing of blends in all the range of compositions by application of Hess's law were negative. And the interactionparameters, the exchange enthalpy and the excess volumes were negative too.These results supported strongly from the experimental and the theoretical pointof view that this blending system are miscible . |
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| Keywords: | Combinatorial enthalpy of mixing Interaction parameter Excess volume Poly (ethylene oxide ) Poly (vinyl acetate ) |
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