Particle-in-particle morphology in reactively compatibilized poly(butylene terephthalate)/epoxide-containing rubber blends

Autor:	P Martin, M. van Gurp, Roger Legras, M. van Duin, C. Maquet, Luc Elza Florent Leemans, Christian Bailly
Rok vydání:	2004
Předmět:	Coalescence (physics) Materials science Polymers and Plastics Organic Chemistry Composite number Kinetics Methacrylate Chemical reaction Natural rubber visual_art Materials Chemistry visual_art.visual_art_medium Copolymer Polymer blend Composite material
Zdroj:	Polymer. 45:3277-3284
ISSN:	0032-3861
DOI:	10.1016/j.polymer.2004.03.031
Popis:	The possibility to generate particle-in-particle morphology by controlling blending sequence has been investigated for reactive processing of poly(butylene terephthalate) (PBT) with ethylene-methyl acrylate-glycidyl methacrylate (E-MA-GMA) random terpolymer. Composite droplet morphology consisting of a PBT matrix, a E-MA-GMA dispersed phase and PBT sub-inclusions is spontaneously formed upon melt mixing due to the coalescence of poorly stabilized E-MA-GMA particles. The development and dimensions of this complex morphology is mainly controlled by the relative kinetics between the coalescence process and the chemical reactions occurring during the melt processing. This can be influenced by an adequate adjustment of various blending parameters such as blend composition, PBT viscosity and rubber phase reactivity. The generation of particle-in-particle morphology can also be forced by using a two-step blending sequence. In this latter case, blend morphology consisting in PBT matrix with PBT/E-MA-GMA core-shell particles can be generated. (C) 2004 Elsevier Ltd. All rights reserved.
Databáze:	OpenAIRE
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