Prediction of Activities of Small Molecules in Polymer Membrane Materials Using the Group Contribution Equation of State

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Yangzheng Lin¹  Jiding Li¹  Cuixian Chen¹  Chuyi Zeng¹  Tianquan Chen¹ 

[1] Membrane Technology and Engineering Research Center, Department of Chemical Engineering, Tsinghua University

关键词: PR EoS;    Polymeric Membrane;    Activity;    Group Contribution;   

DOI  :  10.1252/jcej.39.1145

来源: Maruzen Company Ltd

【 摘 要 】

References(27)Estimation of the activities or solubility of small molecules in polymers is essential in a number of process applications such as the mixture separation by polymeric membrane, polymeric membrane preparation, polymer preparation, especially, the selection of membrane material for a predefined separation process. The VTPR EoS-GE group contribution model has been used to predict the activities of water, alkane, and aromatic small molecules in poly(vinyl alcohol), poly(dimethyl siloxane), and polyisobutylene polymeric membrane materials. The influence of temperature and the molar mass of polymer on the activities of small molecules in the polymeric membrane are discussed. It has been shown that the results predicted by the VTPR EoS-GE model are good agreement with the experimental ones, and the total average deviation between the experimental and the calculated is no more than 3%. It should be expected that the VTPR EoS-GE group contribution model could be applied to the polymeric membrane material selection, to the polymeric membrane preparation processes and to the polymeric material preparation processes.

【 授权许可】

Unknown