【摘要】 通过溶胶 凝胶过程合成了一系列存在相间偶联键的杂化聚合物材料 .IR分析证实了在无机组份与有机组份间存在碳氮键 ,其特征吸收峰在 1 2 5 0cm-1.DSC的测试结果则表明无机组份含量的增加提高了材料的Tg 值 ,从而提高了杂化材料的使用温度 .利用小角X ray散射 (SAXS)和电镜 (TEM)分析了不同无机组份、不同酸度下体系的形态结构 ,结果表明当无机组份与有机组份的摩尔比为 1∶1且体系的酸度适当时相容性最好 .更多还原

【Abstract】 A series of P(EMA\|GMA)/SiO\-2 hybrid polymeric materials,in which there are chemical bonds between the organic component and the inorganic component,were prepared by the sol\|gel process.The structure of the materials was measured by IR.It shows that C—N bonds were formed between the organic and inorganic components according to the appearence of the absorption peak at 1250cm -1 in the spectra of the product and never in those of the reacting substance.The effect of the inorganic content on the thermal behavior of materials was investigated by DSC.The results demonstrate that the values of T g and feasible temperature increased with increasing of the inorganic component.In the same time,each sample displays a single value of T g,it may be attributed to the little phase separation in the materials.The morphology of hybrid polymeric materials was determined by means of TEM and SAXS.From theoretical calculation of parameters a\-1,a\-2,S sp , l i and l o with the Guinier and the Debye equations and TEM analysis,the regulation effect of the inorganic content and acid content on the compatibility of the two components was concluded.The results show that the material possesses a wonderful compatibility when the molar ratio of 3\|aminopropyltriethorysilane (APTES) and copolymer is 1∶1 and the acid content is 1.5% (Vol%).The relationship between the transparency of the hybrid materials and the reaction conditions was also discussed.更多还原