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Facile method for the synthesis of polystyrene–poly(ethylene glycol) block copolymers
Author(s) -
Feng Libang,
Gou Liuxiaohui,
Yang Junliang,
Luo Yajun,
Wang Yulong
Publication year - 2010
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.32310
Subject(s) - copolymer , differential scanning calorimetry , materials science , polystyrene , ethylene glycol , polymer chemistry , gel permeation chromatography , glass transition , fourier transform infrared spectroscopy , amorphous solid , polymer , chemical engineering , chemistry , organic chemistry , composite material , physics , engineering , thermodynamics
A facile method for synthesis of polystyrene–poly(ethylene glycol) block copolymers under mild conditions, for instance, ambient temperature and atmospheric pressure, by the direct esterification condensation reaction was developed. The block copolymers were characterized with such techniques as Fourier transform infrared spectroscopy, 1 H‐NMR, gel permeation chromatography, differential scanning calorimetry, and X‐ray diffraction. The results show that block copolymers with a yield of over 80% were successfully synthesized with this facile approach, and the resulting block copolymers exhibited both glass‐transition and melting endothermal signals and both amorphous and crystal phases as well; this indicated that the block copolymers had a microphase‐separated structure. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010