查询词典 chloroacetic acid

Chloroacetic acid is a very important intermediate of Pharmaceuticals, dyes, pesticides, cellulose derivatives.

为了控制二氯乙酸的生成，降低氯乙酸的物料消耗，本论文采用连续法合成氯乙酸。

Results The infra-red spectragram of the derivate showed the chitosan had been modified by chloroacetic acid.

结果修饰后的衍生物经红外图谱分析表明，壳聚糖已被氯乙酸所修饰。

Hydroxyethyl carboxymethyl cellulose was synthesized by using chloroethanol as etherify ing agent instead of oxirane and chloroacetic acid without isolating intermediate.

探讨了用氯乙醇代替环氧乙烷和一氯醋酸作醚化剂，不用分离中间产物合成HECMC。

A method for synthesizing sodium sulfoacetic is discussed,which sodium sulfoacetic is synthesized with sodium sulfite and ethyl monochloro acetate,with sodium sulfite and chloroacetic acid.

主要分别介绍用亚硫酸钠与氯乙酸乙酯合成磺酸乙酸钠和亚硫酸钠与氯乙酸合成磺酸乙酸钠。

A series of novel polyethylene glycol derivates was synthesized by esterification of chloroacetic acid with polyethylene glycol. Because of the good reactive activity of α-chlorin in the esters it can react with 5-fluorouracil, thus the conjugate can be obtained .

采用氯乙酸与不同分子量的聚乙二醇进行酯化反应得到氯乙酸聚乙二醇酯，由于酯中的α-氯具有良好的反应活性，将它再与抗癌药物5-氟尿嘧啶结合制备了不同分子量的高分子前药。

When alkali cellulose is reacted with the sodium salt of chloroacetic acid, the sodium salt of the carboxymethyl ether (cellulose-O-CH2-CO2-Na+) is formed.

当碱性纤维素与盐酸的钠盐反应，羧甲基醚钠盐生成。

In the present dissertation, the principles and application of the reaction rectification techology in the syntheses of benzyl chloride, chloroacetic acid, monochloroacetone were approached.

本论文采用反应精馏技术氯化苄的合成、氯乙酸的合成进行了认真的研究，并且对一氯丙酮、氯苄系列产品进行了反应精馏研究，都得到了理想的结果。

Chloroacetic acid,chloromethyl ether,acetone,mphenylenediamine,butyl acetate,ethyl acetate,methylene chloride,ethylene dichloride,dioxane.

氯乙酸，氯甲醚，丙酮，间苯二胺，醋酸丁酯，醋酸乙酯，二氯甲烷，二氯乙烷，二氧六环。

Low molecular N,O-carboxymethyl-chitosans with different degrees of substitution were synthesized under heterogeneous conditions by controlling the reaction temperature,the reaction time and the molar ratio of low molecular weight chitosan to chloroacetic acid.

采用不同反应温度、反应时间和低分子量壳聚糖与氯乙酸摩尔比，在非均相反应体系中合成了不同取代度的低分子量N，O-羧甲基壳聚糖。

Acetone, cyclohexanone, formaldehyde and ethylene diamine were adopted to synthetise HLZ corrosion inhibitor by means of Mannich reaction.Then LZ-620 salts corrosion inhibitor was synthetised on HLZ condensating chloroacetic acid.

针对盐类腐蚀采用丙酮、环酮A、甲醛、乙二胺通过曼尼希反应生成缓蚀剂后再与氯乙酸缩合生成盐类缓蚀剂(LZ-620)。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。