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Properties of poly(ethylene terephthalate) and maleic anhydride‐grafted polypropylene blends by reactive processing
Author(s) -
Yoon Kwan Han,
Lee Hyoung Wook,
Park O. Ok
Publication year - 1998
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/(sici)1097-4628(19981003)70:2<389::aid-app20>3.0.co;2-z
Subject(s) - maleic anhydride , materials science , polypropylene , polymer blend , ethylene , dynamic mechanical analysis , composite material , polymer chemistry , glass transition , copolymer , polymer , chemistry , organic chemistry , catalysis
The properties of poly(ethylene terephthalate) (PET) and polypropylene (PP) blends and PET/maleic anhydride‐grafted PP (MAgPP) reactive blends were investigated. Two blend systems were immiscible based on tan δ measured by dynamic mechanical analyzer (DMA). In case of PET/MAgPP blends, the reaction of ester groups of PET and MA sites on MAgPP occurred during melt mixing at 280°C for 30 min. The reaction was confirmed by a new peak between the glass transition temperatures of PET‐rich and MAgPP‐rich phase on tan δ curves, as well as from the rheological properties. From the morphology, the improvement of the dispersibility in PET/MAgPP reactive blends was observed. The modulus of PET/MAgPP blends was higher than that of PET/PP blends, and the strength of PET/MAgPP blends showed the good adhesion compared with the PET/PP blends. © 1998 John Wiley & Sons, Inc. J. Appl. Polym. Sci. 70: 389–395, 1998