Poly(vinyl acetate)/polyacrylate semi‐interpenetrating polymer networks. II. Thermal,mechanical, and morphological characterization |
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| Authors: | A Martinelli L Tighzert L D'Ilario I Francolini A Piozzi |
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| Affiliation: | 1. Dipartimento di Chimica, Università La Sapienza, Piazzale Aldo Moro 5, 00185 Rome, Italy;2. Ecole Supérieure d'Ingénieurs en Emballage et Conditionnement, Groupe de Recherche en Sciences pour l'Ingénieurs, Laboratoire d'Etudes des Matériaux Polymères d'Emballage, Esplanade Roland Garros, Technop?le Henri Farman, BP 1029, 51686 Reims Cedex, France |
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| 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 |
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| Keywords: | interpenetrating networks (IPN) mechanical properties morphology thermal properties |
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