烯化

The mechanical property and thermal stability of cured epoxy resin were closely related to the chemical structure of hydrogenated terpinene maleic anhydride.

氢化萜烯马来酸酐的化学结构与固化物的机械强度及热稳定性密切相关。

The properties of mechanical strength, thermal stability and electrical insulation of the epoxy resin cured with hydrogenated terpinene maleic anhydride and their main influencing factors were investigated.

研究了氢化萜烯马来酸酐与环氧树脂固化物的机械强度、热稳定性及电气绝缘等性能及其主要影响因素。

The curing reaction of hydrogenated terpinene maleic anhydridewith bisphenol A epoxy resin was investigated by FT-IR spectrum, and the curing degree, gelation time and its affecting factors were analyzed.

采用FT-IR光谱研究了氢化萜烯马来酸酐与双酚A型环氧树脂的固化反应过程，并分析了固化度、凝胶时间及其主要影响因素。

The curing reaction of hydrogenated terpinene maleic anhydride with bisphenol epoxy resin was investigated by FT-IR spectrum, and the curing degree, gelation time and its affecting factors acre analyzed.

采用FT-IR光谱研究了氢化萜烯马来酸酐与双酚A型环氧树脂的固化反应过程，并分析了固化度、凝胶时间及其主要影响因素。

The invention relates to condensation products comprised of cyclic carboxylic acid anhydrides of dicarboxylic acids, tricarboxylic acid anhydrides or tetracarboxylic acid anhydrides and difunctional polyamines, especially polyoxyalkylene amines.

本发明涉及由二元羧酸的环状羧酸酐、三羧酸酐或四羧酸酐和二官能化多胺，特别是聚氧化烯胺制备的缩合产物。

Poly silica hybrids were prepared through polymerization, condensation and sol gel processes of the mixture of methyl methacrylate, poly and a small amount of coupling agent methacryloxylpropyl trimethoxy siliane in tetrahydrofuran.

采用溶胶-凝胶技术，以硅酸钠为原料制备聚硅酸/四氢呋喃溶胶，再与甲基丙烯酸甲酯及少许偶联剂甲基丙烯酰氧丙基三甲氧基硅烷(MPTMS 混合，经聚合、缩合和溶胶-凝胶过程制备了有机/无机两相间有— C—Si—O—键的杂化材料——聚甲基丙烯酸甲酯/二氧化硅(PMMA/Si O2 )。

Hydroesterification of tert-butyl alcohol with ethanol catalyzed by transition metal triphenylphosphine complexes were investigated in room temperature ionic liquids as reaction medium at 100-140℃ and 3-6MPa of CO.

首次在超强酸氯铝酸离子液体中实现了饱和烷烃的羰化反应。发现2，2，4-三甲基戊烷可直接与CO反应，产物叔丁基异丁基酮，叔丁基异丁烯基酮和3，3，5-三甲基环己酮。

The characterization of the coked catalyst shows that the deactivation of catalysts is caused by a jam of bulkier molecules, which are the alkylbenzenes from both reactants and products, so the deactivation cannot be avoided.

苯与长链烯烃的烷基化反应过程中，β沸石催化剂的失活是由于产品直链烷基苯本身和原料中带入的杂质芳烃逐渐堵塞孔道、阻止了反应物分子接近活性中心引起的，是由晶内开始逐渐向外发展的。

It is shown that the optimal conditions for the reaction of CADB with SESA are pH 12.0 and m:m=6:1.The product p-aminobenzart sulfanily ethyl CADBwas diazotized and linked with lipase.The optimal pH for lipase linked to diao-compound is 7.5.The link time is at last 12h.

试验结果表明：CADB与SESA反应的最适条件是pH＝12.0，SESA与CADB质量比为6：1，反应生成的对氨基苯磺酰乙基交联烯丙基葡聚糖凝胶经重氮化后与脂肪酶偶联的最适条件是pH7.5，偶联时间≥12h。

Then MAL is converted into methylacrylic acid through oxidation. At last, MAA is esterified to MMA with methanol.

日本旭化成公司以异丁烯为原料，得到MAL后直接氧化酯化的方法正在开发中。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新