查询词典 glycidol

The asymmetric esterification of glycidol catalyzed by lipase was carried out in a nonaqueous medium. The effect of the replacement of water necessary for the function of lipase with water-mimicking solvent on the resolution was investigated.

利用脂肪酶在非水介质中对外消旋环氧丙醇进行不对称酯合成反应，重点研究了强极性有机溶剂作为仿水溶剂完全替代反应体系中的微量&必须&水对酶促拆分反应的影响。

The OH functionality of the polyether may be controlled by using modifiers such as glycidol, ethylene glycol, water or trimethylol propane

用缩水甘油、乙二醇，水或三羟甲基丙烷等改良剂，可控制聚醚的羟基官能团。

The OH functionality of the polyether may be controlled by using modifiers such as glycidol, ethylene glycol, water, or trimethylol propane

可用缩水甘油，乙二醇，水或三羟甲基丙烷等改良剂，可控制聚醚的羟基官能团。

The first and second generation of dendritic polyesters have been prepared by divergent synthetic ways using trimethylopropame as core and o-phthalic anhydride, glycidol as branched units.

以三羟甲基丙烷为核，邻苯二甲酸酐，环氧丙醇为支化结构单元，合成了第一及第二代树枝状聚酯。

Ti-MWW is more attractive by a comparison with those conventional titanosilicates (TS-1,Ti-MCM-41,et al ) in the epoxidation of linear functionalized alkenes, on which the epoxidation of allyl alcohol to glycidol is one of the most industrial promising processes for benign reaction conditions, high yields of the product and environment friendly.

Ti-MWW 对线性官能烯烃的环氧化具有优良的催化性能，特别是对烯丙醇环氧化制缩水甘油的过程，其反应条件温和，产率高，且对环境友好而最具有工业应用前景。

The latter is hydrolyzed in the acidic conditions, then the recovered copolymer of EO and glycidol with multi pending hydroxymethyls is esterified with 2-bromoisobutyrylbromide to produce the ATRP macroinitiator with multi pending bromoisobutyryl groups .

共聚物poly的羟基与2-溴异丁酰溴进行酯化反应，得到侧链挂有2-溴异丁酸酯基结构的可以用于原子转移自由基聚合体系的大分子引发剂Poly_

The glycidol is protected by ethyl vinyl ether first to form 2,3-epoxypropyl-1-ethoxyethyl ether, then polymerized or copolymerized with EO by initiation with the mixture of diphenylmethylpotassium and triethylene glycol to give the well-defined poly.

得到的聚合物用甲酸水解去保护，并在二氧六环和甲醇的混合溶剂中用氢氧化钾溶液皂化后，得到了聚合物链的侧端挂有羟甲基官能团的线形聚醚linear Polyglycidol和poly。

Ti-MWW exhibited a conversion of 97% for allyl aolcohol and a selectivety of above 99% for glycidol when the allyl aolcohol epoxidation was carried out at 333K for 30 min with Ti-MWW of 0.05g, allyl aolcohol of 10mmol and H2O of 20ml.

当Ti-MWW 用量0.05g，水加入量20ml，烯丙醇加入量10mmol，在333K 下反应30min，烯丙醇的转化率达到97%，对缩水甘油选择性达到99%以上。

Phenol aldehyde-epoxy resin Bisphenol-F type epoxy resin GFRP Adhesive Metaphenylene diamine Butyl glycidol ether

酚醛环氧树脂；双酚F环氧树脂；玻璃钢；胶粘剂；间苯二胺；丁基缩水甘油醚

The process of preparing NCAGE included the following steps: alkalization of the treated cellulose; etherification of the alkali cellulose; nitration of the water-soluble cellulose ether; and azidation of nitrocellulose glycidol ether.

利用高压蒸汽闪爆处理后的Novel纤维素为原料，经过碱化、醚化、硝化和叠氮化反应，得到了一种新型高能粘合剂——硝化纤维素叠氮甘油醚，并采用元素分析、DSC、FIT红外光谱和X-射线等对其含氮量、结构和性能进行了分析表征。

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。