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Preparation of electrorheological active ionomers from poly(2‐hydroxyethyl methacrylate)‐ co ‐poly(4‐vinyl pyridine)
Author(s) -
Yilmaz Hasim,
Unal Halil Ibrahim
Publication year - 2006
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.22924
Subject(s) - copolymer , polymer chemistry , monomer , gel permeation chromatography , materials science , sulfonic acid , pyridine , methacrylate , hydrolysis , polymerization , chemistry , polymer , organic chemistry , composite material
In this study, synthesis, characterization, partial hydrolysis, and salt formation of poly(2‐hydroxyethyl methacrylate)‐ co ‐poly(4‐vinyl pyridine), (poly(HEMA)‐ co ‐poly‐(4‐VP)) copolymers were investigated. The copolymers were synthesized by free radical polymerization using K 2 S 2 O 8 as an initiator. By varying the monomer/initiator ratio, chain lengths of the copolymers were changed. The copolymers were characterized by gel permeation chromatography (GPC), viscosity measurements, 1 H and 13 C NMR and FTIR spectroscopies, elemental analysis, and end group analysis methods. The copolymers were partially hydrolyzed by p ‐toluene sulfonic acid monohydrate (PTSA·H 2 O) and washed with LiOH (aq) solution to prepare electrorheological (ER) active ionomers, poly(Li‐HEMA)‐ co ‐poly(4‐VP). © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 99: 3540–3548, 2006