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Poly(vinyl acetate)/polyacrylate semi‐interpenetrating polymer networks. II. Thermal, mechanical, and morphological characterization
Author(s) -
Martinelli A.,
Tighzert L.,
D'Ilario L.,
Francolini I.,
Piozzi A.
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.29291
Subject(s) - materials science , vinyl acetate , characterization (materials science) , polymer chemistry , polymer , interpenetrating polymer network , thermal , composite material , chemical engineering , polymer science , copolymer , nanotechnology , thermodynamics , engineering , physics
Abstract The thermal, dynamic mechanical, and mechanical properties and morphology of two series of semi‐interpenetrating polymer networks (s‐IPNs) based on linear poly(vinyl acetate) (PVAc) and a crosslinked n ‐butyl acrylate/1,6‐hexanediol diacrylate copolymer were investigated. The s‐IPN composition was varied with different monoacrylate/diacrylate monomer ratios and PVAc concentrations. The crosslinking density deeply affected the thermal behavior. The results showed that a more densely crosslinked acrylate network promoted phase mixing and a more homogeneous structure. The variation in the linear polymer concentration influenced both the morphology and mechanical properties. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009