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Polymeric complex membranes for olefin/paraffin separation
Author(s) -
Hsiue GingHo,
Yang JinSheng
Publication year - 1996
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19961050108
Subject(s) - membrane , olefin fiber , polymer chemistry , sorption , permeation , materials science , propane , gas separation , chemical engineering , polymer , chemistry , organic chemistry , composite material , biochemistry , adsorption , engineering
Semi‐crystalline polyethylene (PE), rubbery silicone rubber (SR) and glassy poly[(l‐trimethylsilyl)‐l‐propyne] (PTMSP) were modified for olefin/paraffin separation. The polymers were first grafted with the acrylic acid (AA) and then incorporated with silver ions for forming the complex membranes such as PE‐g‐AA‐Ag + , SR‐g‐AA‐Ag + and PTMSP‐g‐AA‐Ag + The complex membranes were activated by glycerol solvation and subsequently showed high selectivity in olefin/paraffin separation. The silver ion distribution, the kinetics of olefin binding to PE‐g‐AA‐Ag + , the gas permeation properties and the sorption behaviors were studied. A novel dry complex membrane for olefin/paraffin separation based on AgClO 4 complexing with PTMSP main‐chain was also studied.