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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and thermal property of boron-silicon- acetylene hybrid polymer
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Synthesis and thermal property of boron-silicon- acetylene hybrid polymer

机译：硼-硅-乙炔杂化聚合物的合成及热性能

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Inorganic-organic boron-silicon-acetylene hybrid polymer (PABS) was prepared by the polycondensation reaction between phenylboric acid and diphenyldichlorosilane and then terminated by phenylacetylene. The structure was characterized by using FTIR, ~(13)C-NMR, ~1H-NMR, and GPC. PABS was a kind of resin exhibited high viscous at room temperature and good solubility in common organic solvents. The thermal and oxidative properties were evaluated by DSC and TGA. Exothermal peak at 370°C observed by DSC was attributed to reaction of the acetylene units. PABS showed excellent thermal and oxidative stability, and TGA exhibited the temperature of 5% weight loss (Td_5) was 625°C and char yield at 900°C was 90.0% in nitrogen. Surprisingly, both Td_5 and char yield at 900°C showed slightly increase in air, which was 638°C and 90.9%, respectively.
机译：通过苯基硼酸与二苯基二氯硅烷之间的缩聚反应制得无机-有机硼-硅-乙炔杂化聚合物（PABS），然后用苯乙炔封端。通过使用FTIR，〜（13）C-NMR，〜1H-NMR和GPC表征结构。 PABS是一种在室温下表现出高粘度并且在普通有机溶剂中具有良好溶解性的树脂。通过DSC和TGA评估热和氧化性质。 DSC在370℃观察到的放热峰归因于乙炔单元的反应。 PABS表现出优异的热稳定性和氧化稳定性，而TGA在氮气中的5％失重温度（Td_5）为625°C，在900°C时的炭收率为90.0％。出人意料的是，在900°C时Td_5和焦炭收率均显示出空气的轻微增加，分别为638°C和90.9％。

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