异戊二烯在聚苯乙烯高分子膜中的扩散系数测定Measurement of Diffusion Coefficients of Isoprene in Polystyrene
烟伟,郑安呐,刘洪来
摘要(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。
关键词(KeyWords)： 异戊二烯;扩散系数测定;聚苯乙烯膜;石英弹簧法
基金项目(Foundation): 国家自然科学基金资助项目(29974008,20236010)
作者(Author): 烟伟,郑安呐,刘洪来
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