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首页> 外文期刊>Polymer Composites >Synthesis and Characterization of Polyftrimethylene terephthalate)/Polyhedral Oligomeric Silsesquixanes Nanocomposites
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Synthesis and Characterization of Polyftrimethylene terephthalate)/Polyhedral Oligomeric Silsesquixanes Nanocomposites

机译：聚对苯二甲酸丙二醇酯/多面体低聚倍半硅氧烷纳米复合材料的合成与表征

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摘要

This article reports the preparation of poly(trimethylene terephthalate) (PTT)- polyhedral oligomeric silsesquiox-anes (POSS) nanocomposites through in situ polymerization. The chemical structure of the PTT-POSS nanocomposites was characterized with Fourier-transform infrared and nuclear magnetic resonance spectroscopies and the presence of POSS was further confirmed by the elemental analysis. The crystal structures as well as the position of POSS in the nanocomposites were ascertained by the X-ray diffraction (XRD) studies. Thermal characterization studies showed the gradual decrease in the glass transition and melt crystallization temperatures. Though the thermal stability of the PTT was not affected by the incorporation of POSS, the amount of residues obtained from thermal degradation process was increased with an increase in the content of POSS. The tensile studies showed that the values of initial modulus and breaking strength were dramatically decreased with an increase in the content of POSS.
机译：本文报道了通过原位聚合制备聚对苯二甲酸丙二醇酯（PTT）-多面体低聚倍半硅氧烷（POSS）纳米复合材料的方法。 PTT-POSS纳米复合材料的化学结构用傅立叶变换红外光谱和核磁共振谱进行了表征，并且通过元素分析进一步证实了POSS的存在。通过X射线衍射（XRD）研究确定了纳米复合材料的晶体结构以及POSS的位置。热表征研究表明玻璃化转变温度和熔体结晶温度逐渐降低。尽管PTS的热稳定性不受POSS掺入的影响，但是随着POSS含量的增加，从热降解过程中获得的残留物数量增加。拉伸研究表明，初始模量和断裂强度的值随着POSS含量的增加而显着降低。

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