酯化了的

Enzymatic interesterification of palm stearin and soybean oil was carried out by immobilized lipase Lipozyme TL IM. The reaction curve of batch operation was studied. Results showed that the reaction reached blance in 3 h with 5% lipase at 70℃, temperature of 70~90℃ did no remarkable influence on the reaction rate.

进行了固定化脂肪酶Lipozyme TL IM催化棕榈油硬脂和大豆油酶法酯交换的研究，考察了酶法酯交换分批操作的反应动力学曲线，发现5%的加酶量、70℃下反应，反应3 h内达到平衡，反应温度在70~90℃对反应速度无明显影响。

It was found that the reactions of C_(60) with anthranilic acids and isoamyl nitrite in the presence of triethylamine unexpectedly afforded C_(60)-fusedδ-lactones,which would be difficult to be prepared by other known methods.

通过在三乙胺作用下，富勒烯与邻氨基苯甲酸类化合物和亚硝酸异戊酯的环化反应，首次合成了一系列富勒烯并六元环内酯。

Series of FAnC(n=1~4) were synthesized by acylation reaction of FAn (scheme 1) with cinnamyl choride.

通过肉桂酰氯与ε-己内酯改性丙烯酸酯间的酰基化反应，合成了一系列光敏性大单体。

Dibenzyl oxalate was synthesized from oxalic acid, potassium hydroxide and benzyl bromide under microwave irradiation using tetrabutylammonium bromide as phase-transfer catalyst and polyethylene glycol-200 as solvent.

在微波辐射条件下，以草酸、氢氧化钾和溴化苄为原料，四丁基溴化铵为相转移催化剂，聚乙二醇200为溶剂合成了草酸二苄酯，并通过熔点和红外光谱对产物的结构进行了表征。

In order to supply basic thermodynamic data for the separation design of acetyl acetone from the isomerization reaction of isopropenyl acetate,vapor-liquid equilibrium data of isopropenyl acetate-acetyl acetone system under 101.3 kPa was measured using Ellis equilibrium still.

为了给乙酸异丙烯酯异构化生产乙酰丙酮工艺的产物分离设计提供基础热力学数据，用埃利斯平衡蒸馏器测定了101.3 kPa下乙酸异丙烯酯-乙酰丙酮体系的汽液平衡数据，结果表明，该二元体系未形成共沸物，实验数据通过了Herrington面积法的热力学一致性检验。

Three part of research works had been carried out in the dissertation. The first part: a kind of multidentate amine modified silica gel was synthesized through the following steps:(1) introduce the amino groups onto the surface of silica-gel by the treatment of surface silanol groups withγ-aminopropyl trimethoxy silane;(2) michael addition of excess trihydroxymethyl propyl triacrylate to amino groups on the silica gel surface;(3) amidation of the unreacted double bonds of TMPTA on the surface of TMPTA modified silica gel with diethylenetriamine;(4) the multidentate amine modified silica gel was finally obtained by the reaction of amino groups on the surface of DETA modified silica gel with double bond of butyl acrylate.

本论文进行了三部分研究工作，第一部分：通过多步反应对硅胶进行改性合成了一种多齿胺改性硅胶配体，合成过程如下：1通过γ-氨丙基三甲氧基硅烷与硅胶表面的硅羟基反应，使硅胶表面带有氨基；2利用硅胶表面氨基与过量的三羟甲基丙烷三丙烯酸酯发生Michael加成反应；3利用二乙烯三胺与TMPTA改性硅胶表面未反应的双键发生反应使硅胶表面氨基化；4最后用丙烯酸正丁酯与DETA改性硅胶表面氨基充分反应成功合多齿胺改性硅胶配体。

The volatile components were separated and identified using GC-MS technique. RESULTS Seven ingredients were. isolated: 2-ethyl-hexyl-adipate (66.5%), 1-methoxy-4-(1-propenyl)benzene (12.5%), isopropyl isothiocyanate (6%), isobutylisothiocyanate (6%), 6-methyl-5-heptene-2-one (3.5%), benzaldehyde (1.4%), phenylacetaldehyde (0.8%).

结果 分离出7个成分，采用峰面积归一化法确定了各成分的相对含量，分别为66.5%双－2-乙基己基－己二酸、12.5%1-甲氧基－4-（1-丙烯基）苯、6%异硫氰酸异丙酯6%、6%异硫氰酸异丁酯、3.5%6-甲基－5-庚烯－2-酮、1.4%苯甲醛、0.8%苯乙醛。

Thus, the phosphonate moiety is remainedin the products and this methodology can be used in the synthesis of substituted vinylphosphonates.

因此在本烯化反应中保留了膦酸酯基团，可用来合成取代的烯基膦酸酯。

On the basis of above works, dibutyl sebacate and 1、2-cyclohexanedicarboxylic acid diisobutyl ester were chosen to be absorbents of MA according to the solubility and property of solvents.

第二：在前一部分工作基础上，考虑了溶解度测定结果和溶剂本身性质选择有机溶剂癸二酸二丁酯和溶剂六氢化邻苯二甲酸二异丁酯作为吸收顺酐的吸收剂。

A series of polyimide/SiO2-TiO2 hybrid films with different contents and weight ratio of inorganic particle were fabricated using tetraethoxyl silicane and tetrabutyl titanate as precursor by situ method. Chemical structure, micro-morphology and thermal stability of hybrid films was studied by means of SEM, IR and XRD, TGA was also tested.

以正硅酸乙酯和钛酸四丁酯为前驱体，采用两相原位同步法制备一系列不同含量及重量比的聚酰亚胺／SiO2-TiO2杂化薄膜，利用红外光谱、扫描电镜和XRD观察了薄膜的化学结构和微观结构，并测试了薄膜的热稳定性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。