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首页> 外文期刊>Philosophical Magazine Letters >Thermal behaviour of poly(methyl methacrylate)/fullerene composite films
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Thermal behaviour of poly(methyl methacrylate)/fullerene composite films

机译：聚（甲基丙烯酸甲酯）/富勒烯复合膜的热行为

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摘要

Poly(methyl methacrylate) films and poly(methyl methacrylate)/fullerene composite films were fabricated by casting from toluene solutions. The mass fraction of fullerene (C-60) was varied from 0.05-3wt. %. The effect of the fullerene (C-60) content on the thermal degradation parameters of the composite films was evaluated by thermogravimetric (TG) analysis. It was found that the incorporation of C-60 improved the thermal stability of the polymers. The films eventually decomposed in three stages. Incorporation of fullerene caused a change in the distribution of mass loss over the stages of degradation in comparison with the pristine polymer. Using differential scanning calorimetry (DSC), the phase transitions from the glassy state to the elastic one was studied for the examined polymeric materials. New data relating to the effect of C-60 on the glass transition temperature of composites with low weight fractions of filler were obtained. Specifically, for films containing up to 0.1 wt. % of C-60, a single glass transition temperature was found, whereas for composites with a higher concentration of filler, two glass transition temperatures were recorded.
机译：通过从甲苯溶液浇铸来制造聚（甲基丙烯酸甲酯）膜和聚（甲基丙烯酸甲酯）/富勒烯复合膜。富勒烯（C-60）的质量分数不同于0.05-3wt。 ％。通过热重分析（TG）分析评价富勒烯（C-60）含量对复合膜的热降解参数的影响。发现C-60的掺入改善了聚合物的热稳定性。这部电影最终分解在三个阶段。与原始聚合物相比，富勒烯掺入导致降解阶段的质量损失分布的变化。使用差示扫描量热法（DSC），研究了从玻璃状状态到弹性的相位过渡，用于检查的聚合物材料。得到了与C-60效果有关的新数据，得到对具有低重量级填料的复合材料的玻璃化转变温度的新数据。具体地，对于含有高达0.1wt的薄膜。发现C-60的％，发现单玻璃化转变温度，而对于具有较高浓度填料的复合材料，记录了两个玻璃化转变温度。

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