Premium
Studies on the blends of polycarbonate and highly branched polystyrene
Author(s) -
Qiang Ren,
Aiying Li,
Bibiao Jiang,
Dongliang Zhang,
Jianhai Chen
Publication year - 2004
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.21184
Subject(s) - polystyrene , polycarbonate , materials science , styrene , copolymer , polymer chemistry , atom transfer radical polymerization , thermal stability , intrinsic viscosity , viscosity , radical polymerization , polymer , chemical engineering , composite material , engineering
A highly branched polystyrene (HBPS) was synthesized via the copolymerization of 4‐(chloromethyl) styrene with styrene using the self‐condensing atom transfer radical polymerization method. The addition of this highly branched polystyrene as a melt modifier for polycarbonate (PC) was attempted. Indeed, the results show that the addition of highly branched polystyrene can decrease the melt viscosity of PC with little change in mechanical properties, although the blends do exhibit lower thermal stability compared with pure PC. Extrapolation shows that all of the blends have an initial weight loss temperature above 450°C with a statistic heat‐resistant index T s above 225°C. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 2425–2430, 2004