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Measurement of Diffusion Coefficients of Isoprene in Polystyrene
Author(s): 
Pages: 17-22
Year: Issue:  1
Journal: JOURNAL OF CHEMICAL ENGINEERING OF CHINESE UNIVERSITIES

Keyword:  异戊二烯扩散系数测定聚苯乙烯膜石英弹簧法;
Abstract: 为了探讨在反应挤出过程中异戊二烯在聚苯乙烯中的扩散传递机理,采用石英弹簧法测定了298.15K、308.15K和318.15K下异戊二烯在聚苯乙烯膜中的吸收动力学曲线.探讨了温度、压力、分子量对扩散吸收的影响,并对实验结果进行了关联.结果表明异戊二烯在聚苯乙烯膜中的扩散吸收呈S型吸收,由吸收曲线获得了平均扩散系数和平衡溶解度.
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