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Reactive blending of poly(ethylene terephthalate) with ethylene‐propylene rubber
Author(s) -
Yokoyama Koichi,
Fujita Yuji,
Higashida Noboru,
Inoue Takashi
Publication year - 1994
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19940830114
Subject(s) - ethylene , poly ethylene , ethylene propylene rubber , materials science , natural rubber , polymer chemistry , chemical engineering , composite material , polymer science , organic chemistry , chemistry , polymer , copolymer , catalysis , engineering
A gram‐scale miniature reactor designed for reactive blendind was introduced. A brief review was given on the light scattering method for morphology characterization and the ellipsometric analysis on polymer‐polymer interface. These methods were applied for the reactive blending of poly(ethylene terephthalate) with ethylene‐propylene rubber (70/30 PET/EPR). Compared with non‐reactive system, the reactive one yielded finer dispersion of rubber particles. It showed better stability of particle dispersion during static annealing. The reactive system with thick interface showed higher impact strength than the non‐reactive one having same particle size but thinner interface, suggesting that the thick interface may be a prerequisite to the rubber toughening.