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Relationship between polymerization conditions and rheological properties for styrene‐acrylonitrile copolymers
Author(s) -
Garcíarejón A.,
Rangelnafaile C.,
Ríos L.,
Cid F.
Publication year - 1983
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760230807
Subject(s) - materials science , acrylonitrile , copolymer , styrene , monomer , polymerization , polystyrene , toughness , composite material , rheology , polymer chemistry , polymer
Abstract Styrene‐acrylonitrile (SAN) copolymers are widely used in industrial applications in the fields of appliances, automotive, housewares, medicine, and packaging. They possess most of the features of polystyrene, with improved resistance to chemical attack, stress eracking, and heat deflection, and with greater strength and toughness. Their properties depend on several factors, the most important being the composition of the feed (monomer ratio), the type and quantity of the initiator, and the solvent to monomer ratio in the feed. This work presents the results of a continuing program that studies the effect of the above‐mentioned polymerization variables on the viscoleastic properties, and the way in which these variables can be adjusted in order to obtain a SAN copolymer with specific properties.