聚合物衍生陶瓷用含磷聚合物的合成与表征

IF 1.1 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY
Kelly C. Duggan, Ian C. Watson, P. Ragogna
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引用次数: 0

摘要

采用三种单体(1,3,5-三烯丙基-1,3,5-三嗪-2,4,6-三酮或2,4,6,8-四甲基-2,4,6,8-四四乙烯基环四硅氧烷、四乙二醇二烯丙基醚和异丁基膦)的组合制备了含磷聚合物网络作为聚合物衍生陶瓷的前驱体。通过改变这些组分的化学计量,可以随意改变热解后的热稳定性、膨胀性和陶瓷产率等关键性能。确定了在保持膨胀性的同时,在热解过程中获得最高陶瓷产率的最佳化学计量学。材料中的叔膦片段与CpCo(CO)2反应,将钴引入到网络中。金属化后的陶瓷在800℃下热解,利用扫描电子显微镜-能量色散x射线(SEM-EDX)和x射线光电子能谱(XPS)对其进行了表征。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Synthesis and Characterization of Phosphorus Containing Polymers for the Generation of Polymer Derived Ceramics
Phosphorus-containing polymer networks as precursors to polymer derived ceramics were prepared using a combination of three monomers (1,3,5-triallyl-1,3,5-triazine-2,4,6-trione or 2,4,6,8-tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane, tetraethyleneglycol diallyl ether, and isobutyl phosphine ). By varying the stoichiometry of these components, it was observed that key properties such as thermal stability, swellability and ceramic yield after pyrolysis can be modified at will. Optimal stoichiometries to achieve the highest ceramic yields upon pyrolysis, while maintaining swellability were determined. Cobalt was introduced into the networks by reaction of the tertiary phosphine fragments in the material with CpCo(CO)2. After pyrolysis of the metalated at 800 °C, the resulting ceramics were characterized using scanning electron microscopy-energy dispersive X-ray (SEM-EDX) and X-ray photoelectron spectroscopy (XPS).
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来源期刊
Canadian Journal of Chemistry
Canadian Journal of Chemistry 化学-化学综合
CiteScore
1.90
自引率
9.10%
发文量
99
审稿时长
1 months
期刊介绍: Published since 1929, the Canadian Journal of Chemistry reports current research findings in all branches of chemistry. It includes the traditional areas of analytical, inorganic, organic, and physical-theoretical chemistry and newer interdisciplinary areas such as materials science, spectroscopy, chemical physics, and biological, medicinal and environmental chemistry. Articles describing original research are welcomed.
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