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首页> 外文期刊>Journal of Applied Polymer Science >Properties of hybrid materials derived from hydroxy-containing linear polyester and silica through sol-gel process. I. Effect of thermal treatment
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Properties of hybrid materials derived from hydroxy-containing linear polyester and silica through sol-gel process. I. Effect of thermal treatment

机译：通过溶胶-凝胶法衍生自含羟基的线性聚酯和二氧化硅的杂化材料的性能。一，热处理效果

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The transparent hybrid material, HLP/SiO2, was prepared by an in situ sol-gel process of tetraethoxysilane (TEOS) at 30 degrees C in the presence of hydroxy-containing linear polyester (HLP) obtained by ring-opening reaction of diglycidyl ether of bisphenol A (DGEBA) with adipic acid under the catalyzation of triphenylphosphine (TPP). The hetero-associated hydrogen bonds between the HLP and the residual silanol of silica in the hybrids were investigated by FTIR spectroscopy. Upon heating the hybrid, the interfacial force between the HLP matrix and the silica network changed from hydrogen bonds into covalent Si-O-C bonds through dehydration of hydroxy groups in HLP with residual silanol groups in the silica network. The existence of covalent Si-O-C bonds was proved by solid-state Si-29-NMR spectra. Other properties such as tensile strength, glass transition temperature (T-g), solubility, and thermal stability of the hybrids before and after heat treatment were studied in detail. (C) 2000 John Wiley & Sons, Inc. [References: 27]
机译：透明杂化材料HLP / SiO2是通过四乙氧基硅烷（TEOS）在30℃下通过含羟基的线性聚酯（HLP）的原位溶胶-凝胶法制备的，该含羟基的线性聚酯（HLP）是由二环氧甘油醚的开环反应获得的。双酚A（DGEBA）与己二酸在三苯膦（TPP）的催化下。通过FTIR光谱研究了杂化物中HLP和二氧化硅残留硅烷醇之间的杂缔氢键。加热杂化物后，HLP基体与二氧化硅网络之间的界面力通过HLP中的羟基与二氧化硅网络中残留的硅烷醇基脱水而从氢键变为共价Si-O-C键。通过固态Si-29-NMR光谱证明了共价Si-O-C键的存在。详细研究了热处理前后的杂化材料的其他性能，如拉伸强度，玻璃化转变温度（T-g），溶解度和热稳定性。 （C）2000 John Wiley＆Sons，Inc. [参考：27]

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