Thermal and dynamic mechanical properties of PES/PPS blends |
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Authors: | Lai M Liu J |
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Institution: | (1) State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chenistry, Chinese Academy of Science, Changchun, 130022, P.R. China |
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Abstract: | Blends of poly(ether-sulfone) (PES) and poly(phenylene sulfide) (PPS) with various compositions were prepared using an internal
mixer at 290°C and 50 rpm for 10 min. The thermal and dynamic mechanical properties of PES/PPS blends have been investigated
by means of DSC and DMA. The blends showed two glass transition temperatures corresponding to PPS-rich and PES-rich phases.
Both of them decreased obviously for the blends with PES matrix. On the other hand, Tg of PPS and PES phase decreased a little when PPS is the continuous phase. In the blends quenched from molten state the cold
crystallization temperature of PPS was detected in the blends of PES/PPS with mass ratio 50/50 and 60/40. The melting point,
crystallization temperature and the crystallinity of blended PPS were nearly unaffected when the mass ratio of PES was less
than 60%, however, when the amount of PES is over 60% in the blends, the crystallization of PPS chains was hindered. The thermal
and the dynamic mechanical properties of the PPS/PES blends were mainly controlled by the continued phase.
This revised version was published online in August 2006 with corrections to the Cover Date. |
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Keywords: | crystallization blend poly(ether sulfone) poly(phenylene sulfide) |
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