交酯

A fully ethoxy-terminated polymethylsilsesquioxane has been prepared via a dehydration ethanolysis reaction between absolute ethanol and an ordered ladder-like HO-Me-T, which improved long-term storage stability of HO-Me-T. Meanwhile, EtO-Me-T can still participate in the cross-linking reaction with hydroxy-terminated PDMS in the presence of catalyst.

利用含端羟基的LPS与无水乙醇之间的催化脱水反应合成了一种乙氧基为末端基团的活性梯形聚甲基倍半硅氧烷，有效地改善该类聚合物的长期稳定性；同时，该乙氧基封端聚合物仍然具有活性，可以代替常用的正硅酸乙酯与羟基硅油进行交联反应。

A SPE procedure was suggested for extracting and concentrating fisetin by using different volume fractions of ethanol in aqueous solution as the loading conditions.

分别以中药黄栌的主要成分非瑟酮为印迹分子、丙烯酰胺为功能单体及乙二醇二甲基丙烯酸酯为交联剂，通过封管聚合法合成了分子印迹聚合物；将其装于自制的固相萃取柱中，研究了以不同体积比的乙醇-水溶液为溶剂时非瑟酮在柱上的保留行为；通过优化清洗及洗脱条件，使非瑟酮与它的结构相似物槲皮素在柱上得到了很好的分离。

For the production of reactive polyurethane cross-linkinger and curing agents, 2, 4-diisocyanate toluene terpolymer, which possesses the rigid structures of hexatomic ring and three reactive functional groups, was synthesized and characterized by the Fourier transform infrared, the gel permeation chromatography and the chemical analysis methods.

为了制备高活性聚氨酯交联固化剂，用2，4-二异氰酸基甲苯三元聚合反应合成了具有3个活性异氰酸根的六元环结构异氰脲酸酯。

In order to optimize the permeation extracting process of Incarvillea sinensis by orthogonal design, the optimum permeation conditions were investigated by orthogonal design and incarvillateine was used as the content index.

以角蒿酯碱的含量为指标，通过L9(34)正交试验设计，对提取工艺的溶媒浓度、溶媒用量和渗滤速度3个因素进行优选研究，以筛选出角蒿的最佳提取工艺条件。

In the polymerization procedure,S--α-phenyl ethylamine was used as target template molecules,methacrylic acid was selected as functional monomers, ethylene glycol dimethacrylate or divinylbenzene as crosslinker, azobisisobutyronitrile or benzophenone was used as irritator.

以S--α-苯乙胺为模板，甲基丙烯酸为功能单体，分别以二甲基丙烯酸乙二醇酯、二乙烯基苯为交联剂，偶氮二异丁睛或二苯甲酮为引发剂，采用了本体聚合法、悬浮聚合法合成了一系列的S--α-苯乙胺印迹聚合物。

A method for synthesis of isobutyl acetate based on paratoluenesulfonic acid as catalyst was developed.

以冰醋酸、异丁醇为原料，对甲苯磺酸为催化剂合成乙酸异丁酯，通过正交实验考察了原料比、催化剂用量、带水剂用量和反应时间等因素对反应的影响。

Moreover, when changing the equivalence ratio of isocyanic acid ester and hydrogen class compound, solid's performances also change along with it.

并且，改变异氰酸酯和含活泼氢类化合物的当量比，因交联密度的不同，所得的固结体的性能也随之有所变化。

Methods The low methoxyl pectin was obtained by acid hydrolysis and alkaline degreasing.

方法采用酸解法浸提并用碱法脱酯提取低甲氧基果胶，通过单因素试验和正交试验优化工艺条件。

Methods the low methoxyl pectin was obtained by acid hydrolysis and alkaline degreasing. the extraction technology was optimized by single factor experiment and orthogonal experiment.

方法采用酸解法浸提并用碱法脱酯提取低甲氧基果胶，通过单因素试验和正交试验优化工艺条件。

Distribution ratios of complex extraction for different operation conditions were forecasted. Using mass action law, the liquid-liquid equilibrium models of complex extraction of monobasic and polybasic carboxylic acid have been successfully induced, and physical extraction were also considered in the model. On the basis of orthogonal experiments, the models of equilibrium distribution ratios were established. The processes of complex extraction were tested and verified. Comparing experimental data with model values, it could be held that the regression precision of model was rather high and the model supplied fundamental data for industrial amplification and practical use of complex extraction.

采用质量作用定律分析方法，成功地推导了同时考虑物理萃取的一元及多元羧酸络合萃取通用液-液平衡数学模型，并在正交试验基础上建立了磷酸三丁酯络合萃取丁酸、三烷基胺（7301）萃取丁酸、丁二酸、柠檬酸的平衡分配系数模型，从平衡角度对络合萃取过程进行了验证与预测，通过实验数据与模型计算值比较，表明模型的拟合精度较好，从而为络合萃取技术的工业放大与实际应用提供了重要依据。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。