GAS SEPARATION WITH ORGANO-SOLUBLE HIGH-PERFORMANCE AROMATIC POLYIMIDE FILMS

Authors
LI BZ FAN GY HE TB DING MX
Citation
Bz. Li et al., GAS SEPARATION WITH ORGANO-SOLUBLE HIGH-PERFORMANCE AROMATIC POLYIMIDE FILMS, Die Angewandte makromolekulare Chemie, 253, 1997, pp. 65-70
Citations number
10
Journal title
Die Angewandte makromolekulare Chemie → ACNP
ISSN journal
00033146
Volume
253
Year of publication
1997
Pages
65 - 70
Database
ISI
SICI code
0003-3146(1997)253:<65:GSWOHA>2.0.ZU;2-R
Abstract
An organo-soluble polyimide based on 4,4'-(1,4-phenylenedioxy)diphthal ic anhydride and 2,2'-dimethyl-4,4'-methylenedianiline was synthesized by two-step polycondensation accompanied by chemical imidization. Pol yimide films were prepared by spray casting onto glass substrates. The study focused on the separation of carbon dioxide (CO2) from natural gas and the enrichment of methane (CH4) from butane (C4H18). The perme ability and permselectivity coefficients of these gases were determine d.