S3  Ciências dos Materiais    Titulo: MORPHOLOGY OF POLYMER FILMS OF POLYVINYL CHLORIDE/POLYAMIDE-6 BLENDS   Resumo : THE MORPHOLOGICAL BEHAVIOUR OF POLYMER FILMS OF POLYVINYL CHLORIDE (PVC)/POLYAMIDE-6 (PA-6) BLENDS WAS STUDIED BY SCANNING ELECTRON MICROSCOPY (SEM). THE SAMPLES WERE PREPARED BY CASTING, COPRECIPITATION AND PHASE SEPARATION FROM THF, FORMIC ACID AND NITROBENZENE/PHENOL SOLUTIONS. THE MORPHOLOGY OF THE BLENDS PREPARED BY COPRECIPITATION IS TYPICAL OF A BINARY BLEND CONTAINING ONE CRYSTALLIZABLE POLYMER. WHEN THE PVC IS THE MAJOR CONSTITUENT OF THE BLEND, A CRYSTALLINE HEDRITIC STRUCTURE (PA-6) DISPERSED ON A AMORPHOUS MATRIX (PVC) IS OBSERVED. WITH A HIGHER PA-6 CONTENT, SEM SHOWS SPHERICAL PVC PARTICLES DISPERSED ON A FIBROUS PA-6 MATRIX. FILMS OBTAINED BY PHASE SEPARATION SHOW A BETTER INTERACTION BETWEEN THE POLYMERS, WITH NON DISTINGUISHABLE PHASES. KEYWORDS: MORPHOLOGY, POLYMER BLENDS, POLYVINYL CHLORIDE, POLYAMIDE-6     Autores : Espinoza, Marisa Quidel Pezzin, Sergio Henrique Rech Jr., Lourival     Trabalho Completo :   COBEM99 | Comissão  Organizadora | Palestras | Sessões Técnicas | Autor | Simpósios e Sessões Especiais | Revisores |  Título  dos  Trabalhos | Local