摘要
Theapparentsolubility（S）,concentration-averagediffusivity（D）,andpermeability（P）,forC02,CH4andN2throughPPOandaryl-brominatedPPOat35℃forpressurerangingfrom1to26atmarereported.ItisfoundthatP,D,andSofthemembranestoallthethreegasesvarywiththeextentofbromination.Sincreaseswiththeincreaseofthepercentofbromineineachcase,butDtoCO2increasesremarkablyonlyathigherdegreeofbrominafion,andtherefore,PtoCO2isincreasedbymorethan100%overawiderangeofpressureinthecase.Thesolubilitydataarewelldescribedbythedualmodesorptionmodel.ItisfoundthatthegasmoleculessorbedbytheLangmuirmodearerelativelymoreimmobilizedandthecontributionofthenonequilibrinmcharacterofthepolymertogaspermeationincreasesobviouslyforCO2andishardlychangedforCH4withincreasingbrominecontent.Theseobservationsareinterpretedintermsofchangesinspecificfreevolume（SFV）andthecohesiveenergydensity（CED）ofthepolymers.
出版日期
1989年04月14日（中国期刊网平台首次上网日期，不代表论文的发表时间）
