Morphology, Non-isothermal Crystallization Behavior and Kinetics of PPS/PC Blend. Journal of Applied Polymer Science, 2007, 105, 739-748.
writer：Defeng Wu, Yisheng Zhang, Ming Zhang, Lanfeng Wu.
keywords：poly(phenylene sulfide); polycarbonate; blend; morphology; crystallization.
source：期刊
specific source：Journal of Applied Polymer Science
Issue time：2007年
Journal of Applied Polymer Science, 2007, 105, 739-748.
ABSTRACT:
The morphology and nonisothermal crystallization behavior of blends made of poly(phenylene sulfide) (PPS), with a amorphous polycarbonate (PC) were studied. The blend is found to be partially miscible by the dynamic mechanical thermal analysis (DMTA) and melt rheological measurements. The nonisothermal crystallization behavior of blend was studied by differential scanning calorimetry (DSC). The results show clearly that the crystallization temperatures of PPS component in the blend decrease with increasing of PC contents. The crystallization kinetics was then analyzed by Avrami, Jeziorny and Ozawa methods. It can be concluded that the addition of PC decreases the PPS overall crystallization rate due to the higher viscosity of PC and/or partial miscibility of blend, despite of small heterogeneous nucleation effect by the PC phase and/or phase interface. The results of the activation energy obtained by Kissinger method further confirm that the amorphous PC in the partial miscible PPS/PC blend may act as a crystallization inhibitor of PPS.
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