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Polycarbonate‐polystyrene block copolymers and their application as compatibilzing agents in polymer blends
Author(s) -
Jiang Rishan,
Quirk Roderic P.,
White James L.,
Min Kyonsuku
Publication year - 1991
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.760312107
Subject(s) - copolymer , materials science , polycarbonate , polystyrene , polymer chemistry , styrene , polymer , ethylene oxide , polymerization , polymer blend , composite material
The synthesis of a block copolymer with polystyrene (PS) and polycarbonate (PC) segments is described. It is produced by anionic polymerization of the styrene and endcapping with a hydroxyl group followed by subsequent reaction with phosgene and bisphenol‐A. The polystyrene/polycarbonate block copolymer was used as a compatibilizing agent for blends of poly(ethylene terephthalate) (PET) and poly(p‐ phenylene oxide) (PPO). The block copolymer reduced the dimensions of the dispersed phase. The uniaxial mechanical properties of the compatibilized blends were improved by 5 to 10 wt% loadings of the copolymer.