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Redox initiation of copolymerization of styrene with hydroxyl terminated polybutadiene using Ce(IV) as an oxidant
Author(s) -
Bajpai Anjali,
Simon Joshy
Publication year - 2002
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.10524
Subject(s) - copolymer , polybutadiene , styrene , polymer chemistry , hydroxyl terminated polybutadiene , polymerization , materials science , yield (engineering) , chemistry , polymer , organic chemistry , metallurgy
Radical polymerization of styrene (St) with hydroxyl‐terminated polybutadiene (HTPB) using Ce(IV) as an oxidant was carried out under nitrogen atmosphere. The formation of styrene–butadiene block copolymer was confirmed by 1 H‐NMR and IR spectroscopy. The variation in reaction parameters affected the yield of the product. St homopolymer formation under the reaction conditions used is ruled out. Crosslinking of polybutadiene chains through the styryl radical on growing block copolymer chains is suggested from viscosity and swelling measurements. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 244–256, 2002