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Structure‐property relationships in elastomer‐modified terpolymer systems
Author(s) -
Hagerman Edward M.
Publication year - 1969
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1969.070130906
Subject(s) - polybutadiene , elastomer , materials science , glass transition , acrylonitrile , composite material , izod impact strength test , copolymer , styrene , polymer , acrylonitrile butadiene styrene , polymer chemistry , ultimate tensile strength
A number of terpolymers, incorporating as the elastomer phase polybutadiene, polyisoprene, poly‐2,3‐dimethylbutadiene, poly(butadiene‐co‐styrene), and poly(butadiene‐co‐2‐methyl‐5‐vinypyridine), were studied. Matrices were composed of poly(styrene‐co‐acrylonitrile) (SAN), poly(α‐methylstyrene‐co‐acrylonitrile), and poly(styrene‐co‐acenaphthylene). At constant elastomer content and elastomer molecular weight in systems employing a SAN matrix, Izod impact resistance was found to vary inversely with rising elastomer‐glass transition temperature. In systems of various matrix composition, using a polybutadiene elastomer, heat deflection temperatures were found to very directly and impact resistance inversely with rising matrix‐glass transition temperature. In acrylonitrile–butadiene–styrene (ABS), systems of constant matrix composition and elastomer content, varying the elastomer molecular weight from 0.6 to 2.6 × 10 5 resulted in increasing the Izod impact resistance from 0.67 to 12.8 ft‐lb/in. of notch.