Influence of styrene-acrylonitrile oligomers on the properties of ABS graft copolymers
Oligomers of styrene and acrylonitrile were isolated from solvent-monomer mixtures of a bulk/solution polymerization; they were characterized. There was a study of the influence of these oligomers on thermal, mechanical and processing properties of acrylonitrile-butadiene-styrene (ABS) graft copolym...
Saved in:
Published in | European polymer journal Vol. 29; no. 5; pp. 727 - 730 |
---|---|
Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Oxford
Elsevier Ltd
01.05.1993
Elsevier |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Oligomers of styrene and acrylonitrile were isolated from solvent-monomer mixtures of a bulk/solution polymerization; they were characterized. There was a study of the influence of these oligomers on thermal, mechanical and processing properties of acrylonitrile-butadiene-styrene (ABS) graft copolymers. The relation between
T
g and the oligomer concentration was examined both for the poly(styrene-co-acrylonitrile) phase of the ABS graft copolymer and the rubber-free polymer. Tests on the equations of Fox, Pochan, Gordon-Taylor and Couchman showed that the last gave the best agreement with experimental results. A maximum of the notched impact resistance and a relatively constant flexural strength of the ABS graft copolymers were found for oligomer concentrations up to 2.5 wt%. The tensile strength decreases and the melt flow index of the graft copolymers increases particularly at concentrations above 1.5 wt% of oligomers. |
---|---|
Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0014-3057 1873-1945 |
DOI: | 10.1016/0014-3057(93)90135-3 |