摘要
采用UNIFAC、UNIFAC FV、GC FloryEOS模型 ,对PP、PIB、PBD、PMA、PnBMA、PVAC等几种聚合物和不同溶剂体系的气液平衡 (活度和无限稀重量分率活度系数 )进行了估算 .不同聚合物 /溶剂体系应选择不同的模型 。
The models of UNIFAC, UNIFAC FV and group contribution equation of state(GC Flory EOS) have been used to calculate vapor liquid equibria (solvent activities and infinite dilute weight fraction activity coefficients) in a few concentrated polymer solutions such as PS, LDPE, PDMS, PP, PIB, PBD, PMA, PnBMA, PVAC, etc with various solvents. The results indicated that the different models should be used for the different polymer solutions in order to decrease the model estimation errors.
出处
《湘潭大学自然科学学报》
CAS
CSCD
2000年第1期30-36,共7页
Natural Science Journal of Xiangtan University
基金
国家自然科学基金
国家教委基金资助项目
关键词
聚合物溶液
气液平衡
模型估算
UNIFAC
polymer solutions,vapor-liquid equilibrium,model estimation,UNIFAC,UNIFAC-FV
