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Effect of cellulose structure and morphology on the properties of poly(butylene succinate-co-butylene adipate)
R Avolio1, V Graziano2, Y D F Pereira3
1Institute for Polymers, Composites and Biomaterials-National Research Council, Via Campi Flegrei 34, Pozzuoli, 80078 Naples, Italy.
Abstract:
Composites based on poly(butylene succinate-co-butylene adipate) (PBSA) containing amorphized and crystalline cellulose reinforcements have been prepared and characterized. In order to improve the polymer/filler interfacial adhesion, an efficient compatibilizing agent has been synthesized by chemical modification of PBSA and characterized by FT-IR, FT-NIR and (1)H NMR spectroscopy. Uncompatibilized and compatibilized composites have been tested through morphological, mechanical, calorimetric and thermogravimetric analysis. Moreover, water vapor permeability and biodegradation kinetics of composites have been investigated. The addition to PBSA of cellulose fillers differing from each other by crystallinity degree and morphology, and the use of a compatibilizing agent have allowed modulating tensile and thermal properties, water vapor transmission rate and biodegradation kinetic of the composites.
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