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Blends of poly(ethylene terephthalate)/polycarbonate by the use of lanthanum acetyl acetonate catalyst
Author(s) -
Zahedi P.,
Arefazar A.
Publication year - 2007
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.27360
Subject(s) - polycarbonate , transesterification , crystallinity , lanthanum , materials science , ethylene , catalysis , polymer , poly ethylene , polyethylene terephthalate , polymer chemistry , polymer blend , chemical engineering , composite material , chemistry , organic chemistry , copolymer , engineering
Blends of poly(ethylene terephthalate) (PET)/polycarbonate (PC) in the presence of lanthanum acetyl acetonate catalyst that causes reactive mixing of two polymers were prepared, and mechanical and morphological properties were studied. For comparison reasons, simple blends of those two polymers (in the absence of catalyst) were also prepared. Compatibility strongly depends on the degree of transesterification at the interface of PET/PC, which leads to decrease of PET crystallinity, and results reveal that at 40–50% of PC content in blends a fine microstructure is formed and impact strength reaches its maximum value. This phenomenon is attributed to the occurrence of transesterification reactions. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008