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Processing characteristics of alpha‐methylstyrene–methacrylonitrile copolymer
Author(s) -
Kenney J. F.,
Patel P. J.
Publication year - 1976
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.1976.070200218
Subject(s) - copolymer , methacrylonitrile , materials science , polymer chemistry , ethyl acrylate , acrylate , composite material , chemical engineering , polymer , acrylonitrile , engineering
Processing behavior of alpha‐methylstyrene–methacrylonitrile copolymer has been studied in a Brabender Plasticorder and in a capillary rheometer. The copolymer is thermally unstable at a processing temperature of 230°C; however, addition of 2% ethyl acrylate to the copolymer composition enhances processing stability. The terpolymer is processable in the range of 210° to 250°C. However, it is limited by melt fracture at low shear rates.