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Changes in the interfacial properties of PC/SAN blends with compatibilizer
Author(s) -
Kim J. H.,
Kim C. K.
Publication year - 2003
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.12287
Subject(s) - materials science , polycarbonate , copolymer , composite material , methyl methacrylate , compatibilization , miscibility , polymer blend , acrylonitrile , polymer chemistry , polymer
Block copolymers of polycarbonate‐ b ‐poly(methyl methacrylate) (PC‐ b ‐PMMA) and tetramethyl poly(carbonate)‐ b ‐poly(methyl methacrylate) (TMPC‐ b ‐PMMA) were examined as compatibilizers for blends of polycarbonate (PC) with styrene‐ co ‐acrylonitrile (SAN) copolymer. To explore the effects of block copolymers on the compatibility of PC/SAN blends, the average diameter of the dispersed particles in the blend was measured with an image analyzer, and the interfacial properties of the blends were analyzed with an imbedded fiber retraction (IFR) technique and an asymmetric double cantilever beam fracture test. The average diameter of dispersed particles and interfacial tension of the PC/SAN blends were reduced by adding compatibilizer to the PC/SAN blends. Fracture toughness of the blends was also improved by enhancing interfacial adhesion with compatibilizer. TMPC‐ b ‐PMMA copolymer was more effective than PC‐ b ‐PMMA copolymer as a compatibilizer for the PC/SAN blends. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 2649–2656, 2003