Preparation and characterization of syndiotactic polystyrene/ethylene‐propylene copolymer blends | Zendy

Choi WonMook | Zendy; Park CheonIl | Zendy; Park O Ok | Zendy; Lim JaeGon | Zendy

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Preparation and characterization of syndiotactic polystyrene/ethylene‐propylene copolymer blends

Author(s) -

Choi WonMook,

Park CheonIl,

Park O Ok,

Lim JaeGon

Publication year - 2002

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.10768

Subject(s) - compatibilization , materials science , miscibility , copolymer , polymer blend , polystyrene , polymer chemistry , electron paramagnetic resonance , maleic anhydride , dynamic mechanical analysis , ethylene propylene rubber , chemical engineering , composite material , polymer , physics , nuclear magnetic resonance , engineering

The reactive compatibilization of syndiotactic polystyrene (sPS)/oxazoline‐styrene copolymer (RPS)/maleic anhydride grafted ethylene‐propylene copolymer (EPR‐MA) blends is investigated in this study. First, the miscibility of sPS/RPS blends is examined by thermal analysis. The cold crystallization peak ( T cc ) moved toward higher temperature with increased PRS, and, concerning enthalpy relaxation behaviors, only a single enthalpy relation peak was found in all aged samples. These results indicate that the sPS/RPS blend is miscible along the various compositions and RPS can be used in the reactive compatibilization of sPS/RPS/EPR‐MA blends. The reactive compatibilized sPS/RPS/EPR‐MA blends showed finer morphology than sPS/EPR‐MA physical blends and higher storage modulus ( G ') and complex viscosity (η*) when RPS contents were increased. Moreover, the impact strength of sPS/RPS/EPR‐MA increased significantly compared to sPS/EPR‐MA blend, and SEM micrographs after impact testing show that the sPS/RPS/EPR‐MA blend has better adhesion between the sPS matrix and the dispersed EPR‐MA phase. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 2084–2091, 2002

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