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Preparation and characterization of polystyrene terminated with an organic sulfide group and styrene–vinyl acetate block copolymer
Author(s) -
Liu FuTian,
Cao ShuQin,
Yu XianDa
Publication year - 1993
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.1993.070480307
Subject(s) - copolymer , styrene , polystyrene , polymer chemistry , sulfide , vinyl acetate , polymerization , materials science , chemistry , organic chemistry , polymer
Polystyrene terminated with an organic sulfide group was prepared by styrene bulk polymerization using three organic disulfides as initiators, and the content of the organic sulfide group (X̄ n ) was determined quantitatively from the data of UV and M̄ n . Styrene–vinyl acetate block copolymer was prepared by using polystyrene ended with the organic sulfide group as the photosensitizer to initiate vinyl acetate polymerization. The copolymer was characterized by IR, 1 H‐NMR, 13 C‐NMR, DSC, and TEM, respectively. Different copolymerization conditions were investigated systematically. The result reveals that the X̄ n value is a key factor in the copolymerization and the copolymerization proceeds via living radical mechanism. © 1993 John Wiley & Sons, Inc.