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Preparation and properties of waterborne polyurethane adhesives modified by polystyrene
Author(s) -
Du Hui,
Zhao Yuhua,
Yin Ning,
Li Qifeng,
Wang Junwei,
Kang Maoqing,
Xiang Hongwei,
Wang Xinkui
Publication year - 2008
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.28848
Subject(s) - prepolymer , polyurethane , materials science , adipate , adhesive , polystyrene , polymer chemistry , polyester , thermal stability , fourier transform infrared spectroscopy , diol , styrene , copolymer , composite material , chemical engineering , polymer , layer (electronics) , engineering
Waterborne polyurethane (WPU) adhesives modified by polystyrene (PS) were prepared through a prepolymer mixing process from diisocyanates, an anionic polyester, internal emulsifiers, a neutralizer, a chain extender, and PS dispersions. The latter was preformed via the in situ polymerization of styrene in poly(1,4‐butanediol adipate) diol. Transmission electron microscopy, Fourier transform infrared spectroscopy, and 1 H‐NMR techniques were used to characterize the PS dispersions and polyurethane (PU)–PS prepolymer. Experimental results with respect to the performance of the PU–PS adhesives indicate that suitable PS/polyester diol weight ratios improved the mechanical properties, thermal stability, water resistance, and initial adhesive strength of the pristine WPU adhesives. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008