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Performance improvement of glass‐fiber‐reinforced polystyrene composite using a surface modifier. I. Synthesis and characterization of poly(γ‐MPS‐ co ‐styrene)
Author(s) -
Jang Jyongsik,
Lee Junyeob,
Jeong Jongkoo
Publication year - 1995
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.1995.070561216
Subject(s) - copolymer , polystyrene , styrene , materials science , glass transition , fourier transform infrared spectroscopy , polymer chemistry , silane , thermal stability , fiber , composite number , glass fiber , composite material , chemical engineering , polymer , engineering
Poly(γ‐MPS‐ co ‐styrene), as a surface modifier of glass‐fiber‐reinforced polystyrene composite, was synthesized to improve the adhesion between glass fiber and polystyrene matrix. The copolymerization was carried out using AIBN as the initiator at 70°C. The reactivity ratios of γ‐MPS and styrene were determined by the Finemann–Ross method. The result was r 1 (styrene) = 0.10, r 2 (γ‐MPS) = 0.86. Judging from these results, the copolymerization of γ‐MPS and styrene was azeotropic copolymerization and the synthesized copolymer was a random one. Thermal stability of the copolymer was improved as the content of silane in the copolymer was increased and the glass transition temperature decreased. The surface modified glass fiber was investigated with Fourier transform infrared spectroscopy (FTIR). The glass fiber surface was effectively modified with the copolymer. © 1995 John Wiley & Sons, Inc.