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Preparation of polyimide (pyromellitic dianhydride-4,4'-oxydianiline) solvent resistance nanofiltration membrane

Authors： Fang Bing, Pan Kai, Cao Bing *

Units： College of Material Science and Engineering, Beijing University of Chemical Technology

KeyWords： solvent resistant nanofiltration membrane, two-step method, polyimide, heat imidization

ClassificationCode：TQ028.5

year,volume(issue):pagination： 2012,32(2):1-4

Abstract：

This paper describes the preparation of polyimide (pyromellitic dianhydride-4,4'-oxydianiline) solvent resistance nanofiltration membrane by two-step method. In this research the thermal imidization procedure were studied. The SRNF membranes with better performance were prepared at the following procedures: 200oC for 2.5h, 250oC for 2h, and 300oC for 2h in vacuum environment.The membrane was stable in most of the solvents tested. The fluxes of some common solvents keep a relatively high level while the rejection of Crystal violet and Eriochrome blue black R were up to 99.8% and 97.9% respectively.

Funds：

教育部科学技术研究重大项目(308003)；国家自然科学基金(20804002)

AuthorIntro：

房昺，男，(1986~),籍贯山东，硕士，北京化工大学，聚酰亚胺耐溶剂纳滤膜的制备与性能研究*通讯联系人E-mail：bcao@mail.buct.edu.cn

Reference：

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