THE EFFECT OF THE POLY(BUTYLENE TEREPHTHALATE) CONSTITUENT ON THE REACTIONS OCCURRING IN POLY(BUTYLENE TEREPHTHALATE) POLYCARBONATE POLYMER BLENDS BELOW THEIR DECOMPOSITION TEMPERATURE

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作者
PELLOWJARMAN, M [1 ]
HETEM, M [1 ]
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[1] GEN ELECT PLAST EUROPE,4600 AC BERGEN,NETHERLANDS
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TB33 [复合材料];
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摘要
The effect of the properties of the poly(butylene terephthalate) (PBT) component (varying molecular weight, end-group and titanium contents) on the thermal processes occurring between 200 and 350-degrees-C in stabilised and unstabilised blends (phosphorous acid stabiliser) of PBT and polycarbonate (PC) is studied in a dynamic study using a temperature programmable Fourier Transform infrared cell in gas decomposition and transmission modes. The total amount of CO2 released by the PBT/PC blends is found to be greatly reduced by the presence of a phosphorous acid stabiliser in the blend. Transesterification is also observed between the PBT and PC components of the blends, this reaction is also significantly reduced by the presence of the stabiliser.
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页码:31 / 41
页数:11
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