A Novel Imide-Bridged Polysiloxane Membrane Was Prepared via One-Pot Hydrosilylation Reaction for O2/N2 Separation

The synthesis of poly­(methyhydrosiloxane) (PMHS) and N,N′-bis­(3-allyl)­pyromellitic diimide was optimized for O2/N2 separation. The membrane exhibits excellent mechanical and thermal properties and shows an O2/N2 selectivity of up to 4.44 with an O2 permeability of 31.0 Barrer; compared with polyd...

Full description

Saved in:
Bibliographic Details
Published in:ACS omega 2021-08, Vol.6 (30), p.19553-19558
Main Authors: Xu, Shuangping, Ma, Wenqiang, Zhou, Hailiang, Zhang, Yushu, Jia, Hongge, Xu, Jingyu, Jiang, Pengfei, Wang, Xintian, Zhao, Wenwen
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The synthesis of poly­(methyhydrosiloxane) (PMHS) and N,N′-bis­(3-allyl)­pyromellitic diimide was optimized for O2/N2 separation. The membrane exhibits excellent mechanical and thermal properties and shows an O2/N2 selectivity of up to 4.44 with an O2 permeability of 31.0 Barrer; compared with polydimethylsiloxane (PDMS) and pure polyimide (PI) membranes, the separation selectivity shows a 107% increase for PDMS, and the permeation shows a 660% increase for pure PI. The obtained results were well above the ones reported on the literature for similar conditions opening the door for the preparation of a stable polysiloxane (PMHS-I) gas separation membrane with extraordinary O2/N2 separation performance.
ISSN:2470-1343
2470-1343
DOI:10.1021/acsomega.1c01964