DIFFUSION AND SORPTION OF ORGANIC LIQUIDS THROUGH POLYMER MEMBRANES .4. NEOPRENE, SBR, EPDM, NBR, AND NATURAL-RUBBER VERSUS CHLOROCOMPOUNDS

被引：14
作者：
KHINNAVAR, RS [1 ]
AMINABHAVI, TM [1 ]
机构：
[1] KARNATAK UNIV,DEPT CHEM,DHARWAR 580003,KARNATAKA,INDIA
来源：
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 1991年 / 30卷 / 5-6期
关键词：
D O I：
10.1080/03602559108019219
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Diffusion coefficients of 1,2-dichloroethane, 1,1,2-trichloroethylene, 1,1,2,2-tetrachloroethane, and carbon tetrachloride into neoprene, SBR, EPDM, NBR, and natural rubber have been obtained from sorption experiments in the temperature interval of 25-degrees to 60-degrees-C. Diffusion was found to be dependent on the type and nature of the barrier material in addition to the diffusant size. The mechanism of diffusion appears to follow the anomalous diffusion. Activation energies for diffusion have been estimated and used in the discussion of transport data. Equilibrium sorption data were used to calculate the enthalpy and entropy of sorption for polymer-solvent pairs.
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页码：529 / 543
页数：15
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