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首页> 外文期刊>RSC Advances >The controllable construction and properties characterization of organic–inorganic hybrid materials based on benzoxazine-bridged polysilsesquioxanes
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The controllable construction and properties characterization of organic–inorganic hybrid materials based on benzoxazine-bridged polysilsesquioxanes

机译：基于苯并恶嗪桥联的聚倍半硅氧烷的有机-无机杂化材料的可控结构和性能表征

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摘要

Using a hydrolysis condensation of triethoxysilane to prepare a synthetic benzoxazine-bridged bis(triethoxysilane) compound (BS), a series of benzoxazine-bridged polysilsesquioxanes precursors were prepared with different degrees of hydrolysis condensation. Ring-opening thermal homopolymerization of the benzoxazine rings in these precursors was employed to obtain several organic–inorganic hybrid materials. The chemical structures of these synthetic compounds were characterized by Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (1H, 13C, 29Si NMR) spectroscopy and elemental analysis (EA). For the morphologies of these hybrid materials, different features of the lamellar structures were explored by transmission electron microscopy (TEM). From the results of energy dispersive X-ray spectroscopy (EDS), these lamellar structures were found to be comprised of carbon-rich (C-rich) and silicon-rich (Si-rich) layers. From a view-point of the structure–property relationships, the optical (photoluminescence (PL)), thermal (glass transition temperature (Tg) and thermogravimetric analysis (TGA)) properties were well characterized and discussed. Based on these results, we proposed that this chemically controllable method has potential as an effective approach used to prepare organic–inorganic hybrid materials with controllable morphology.
机译：使用三乙氧基硅烷的水解缩合反应制备合成的苯并恶嗪桥联的双（三乙氧基硅烷）化合物（BS），制备了一系列苯并恶嗪桥联的聚倍半硅氧烷烷烃前体，它们具有不同的水解缩合度。这些前体中苯并恶嗪环的开环热均聚反应被用来获得几种有机-无机杂化材料。这些合成化合物的化学结构通过傅里叶变换红外光谱（FTIR），核磁共振（ 1 H， 13 C， 29 Si NMR）光谱和元素分析（EA）。对于这些杂化材料的形态，通过透射电子显微镜（TEM）探索了层状结构的不同特征。根据能量色散X射线光谱（EDS）的结果，发现这些层状结构由富碳（富C）层和富硅（富Si）层组成。从结构-性质关系的角度来看，光学（光致发光（PL）），热（玻璃化转变温度（ T g ）和热重分析（TGA）的特性已得到很好的表征和讨论。根据这些结果，我们认为这种化学可控方法具有潜力，可用于制备形态可控的有机-无机杂化材料。

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