Premium
Preparation of composite reverse osmosis membranes by plasma polymerization. II. Copolymerization of unusual comonomers
Author(s) -
Yasuda H.,
Marsh H. C.,
Tsai J.
Publication year - 1975
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1975.070190809
Subject(s) - copolymer , reverse osmosis , polymer chemistry , monomer , membrane , polymer , polymerization , materials science , chemical engineering , chemistry , composite material , biochemistry , engineering
Abstract Preparation of composite reverse osmosis membranes by plasma polymerization of 4‐picoline, 3,5‐lutidine, benzene, and acetylene with unusual comonomers such as H 2 O and N 2 is investigated using the flow system of the monomers and an electrodeless glow discharge with 13.5 MHz radio frequency. These comonomers are incorporated into the plasma polymers and change their properties. Consequently, relatively hydrophilic polymers are formed from rather hydrophobic monomers such as benzene and acetylene by the copolymerization. The addition of H 2 O and N 2 also improves the reverse osmosis characteristics of plasma polymers from hydrophilic monomers such as 4‐picoline and 3,5‐lutidine. The reverse osmosis characteristics of plasma polymers are influenced by the ratio of H 2 O and N 2 to the basic monomer as well as by the total pressure of the monomers.