Mechanical properties of products of thermocatalytic and radiolytic styrene–acrylonitrile copolymerization | Zendy

Gadalla Ahmed M. | Zendy; Derini Mohamed A. E. | Zendy

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Mechanical properties of products of thermocatalytic and radiolytic styrene–acrylonitrile copolymerization

Author(s) -

Gadalla Ahmed M.,

Derini Mohamed A. E.

Publication year - 1983

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.1983.070281210

Subject(s) - copolymer , acrylonitrile , styrene , radiolysis , ultimate tensile strength , materials science , polymerization , acrylonitrile butadiene styrene , polymer chemistry , chemical engineering , composite material , polymer , chemistry , organic chemistry , radical , engineering

The mechanical properties of styrene (S)–acrylonitrile (AN) mixtures, ranging from 20 to 80 wt % S, polymerized by thermocatalytic and radiolytic techniques were studied. Maximum compressive and tensile strength was obtained for the mixture containing 60 wt % styrene. The hardness increased with styrene concentration up to 40 wt % and then remained nearly constant. Radiolytic copolymerization gave stronger copolymers than thermal copolymerization since irradiation enhances crosslinking. For the same composition, as the dose increases, the strength increases to a maximum and then decreases due to competing rates of crosslinking and degradation.

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