Thermophysical property measurements of polymer solutions and development of their data bases

这项工作的目的是测量和积累气体溶解度和气体扩散系数，并开发这些性质的预测方法和数据库。1.溶质在聚合物(汽液平衡)中的溶解度：乙烯+高抗冲聚丙烯、丙烯+高抗冲聚丙烯、正己烷在乙烯+高抗冲聚丙烯中的无限稀释汽液平衡比、正己烷在丙烯中的无限稀释汽液平衡比+高抗冲聚丙烯。正己烷的无限稀释汽液平衡比可以用Sanchez-Lacombe(S-L)状态方程结合拟合出的二元相互作用数据来预测。聚合物和溶剂体系的液液平衡研究体系：己烷+聚乙烯、乙烯+己烷+聚乙烯三元液-液平衡数据可用S-L状态方程和二元相互作用参数进行预测。聚乳酸、聚丁二酸丁二醇酯、聚丁二酸丁二醇酯-己二酸丁二醇酯等聚合物熔体的PVT可以用基团贡献率修正的细胞模型状态方程来预测。聚合物溶液数据库的开发利用上述实验数据和文献值开发了数据库。这个数据库是由国家计量研究实验室T·巴巴博士开发的热物理性质数据库的一部分。日本，将会出现在互联网上。

The objective of this work is measurements and data accumulation of gas solubility and gas diffusivity as well as development of prediction method and data base of these properties. Outcomes obtained in this work are shown as follows :1. Solubilities of solute in polymer (vapor-liquid equilibria)Investigated systems: ethylene + high impact polypropylene, propylene + high impact polypropylene, infinite dilution vapor-liquid equilibrium ratio of hexane in ethylene + high impact polypropylene, infinite dilution vapor-liquid equilibrium ratio of hexane in propylene + high impact polypropyleneThe infinite dilution vapor-liquid equilibrium ratios of hexane could be predicted by Sanchez-Lacombe (S-L) equation of state in conjunction with binary interaction parameters obtained from fitting binary phase equilibrium data.2. Liquid-liquid equilibria for polymer and solvent systemInvestigated systems: hexane + polyethylene, ethylene + hexane + polyethyleneTernary liquid-liquid equilibrium data could be predicted by S-L equation of state with binary interaction parameter.3. PVT of polymerInvestigated systems: polylactide, poly(butylene succinate), poly(butylenes succinate-co-adipate)PVT properties of these biodegradable polymer melts could be predicted by group contribute modified cell model equation of state.4. Data base development for polymer solutionsThe data base was developed by using the experimental data described above and literature values. This data base, which plays a part in the thermophysical property data base developed by Dr. T. Baba, National Research Laboratory of Metrology. Japan, will be appeared on the Internet.