The surface tension of polymer blends: theory and experiment
The surface tension of polymer blends: theory and experiment
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聚合物共混物的表面张力：理论与实验
DOI：
10.1021/ma00063a021
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
B. Sauer
中科院分区：
文献类型：
--
作者：
G. T. Dee;B. Sauer
用改进的Wilhelmy法测定了一系列相容聚合物共混物的表面张力。结果进行了比较与Cahn-Hilliard理论的Flory，Orwoll，和Vrij状态方程被用来模拟共混物的散装性能。低和高分子量（MW）的聚（二甲基硅烷）（PDMS）的共混物的实验结果与理论一致，在实验误差内，没有可调的参数。结果表明，我们可以准确地模拟低分子量PDMS组分的表面过剩。还描述了共混物表面张力对平方梯度系数k12的理论依赖性
The surface tensions of a series of miscible polymer blends were measured using a modified Wilhelmy method. The results were compared with the Cahn-Hilliard theory where the Flory, Orwoll, and Vrij equation of state was used to model the bulk properties of the blends. Experimental results for blends of low and high molecular weight (MW) poly(dimethylsilorane) (PDMS) were found to agree with theory to within experimental error with no adjustable parameters. The results indicate that we can accurately model the surface excess of the low molecular weight PDMS component. The theoretical dependence of the surface tension of the blend on the square gradient coefficient k 12 is also described