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Sulfonation of polyetheretherketone by chlorosulfuric acid
Author(s) -
Trotta Francesco,
Drioli Enrico,
Moraglio G.,
Poma E. Baima
Publication year - 1998
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/(sici)1097-4628(19981017)70:3<477::aid-app8>3.0.co;2-k
Subject(s) - peek , phenylene , polymer chemistry , poly(p phenylene) , materials science , membrane , chemistry , polymer , composite material , biochemistry
Sulfonated poly(oxa‐ p ‐phenylene‐3,3‐phthalido‐ p ‐phenylene‐oxa‐ p ‐phenylene‐oxy‐phenylene) (PEEK‐WC) with various degrees of substitution was obtained by reaction of polyetheretherketone with neat chlorosulfuric acid. Highly sulfonated PEEK‐WC was freely soluble in cold water. By working under suitable reaction conditions, no degradation of the polymeric chain was detected. The modified PEEK‐WC was able to form asymmetric membranes. The expected chlorosulfonated derivatives were never achieved. © 1998 John Wiley & Sons, Inc. J. Appl. Polym. Sci. 70: 477–482, 1998