查询词典 Epichlorohydrin

The results showed that the yield of phenyl glycidyl ether was 96.8% when the mole rate of sodium phenolate and epichlorohydrin was 1.15:1, the mass ratio of ionic liquid and reactant 2:1, reaction temperature 70℃ and reaction time 2h.

结果表明，在反应温度为70℃，反应时间为2h，反应物苯酚钠与环氧氯丙烷的物质的量比为1.5：1，离子液体与反应物的质量比为2：1时，苯基缩水甘油醚的产率为96.8%。

Solvent dosage is 10mL/ gram epichlorohydrin. The yield of 5-chloromethyl-2-oxazolidinone was more than 65.2%. 5-Chloromethyl-2-oxazolidinone and sodium phenolate were condensated to give 5-phenoxymethyl-2-oxazolidinone after taking off the sodium chloride in yield of 63.0%~78.0%. Dimethylsulfoxide was used as the solvent, and orthogonal experiment to the reaction condition had been carried out.

用5-氯甲基-2-噁唑烷酮和酚钠缩合，脱去氯化钠后生成5-芳氧甲基-2-噁唑烷酮类化合物，选用二甲亚砜为溶剂，对反应条件进行了正交实验，最佳条件为：反应温度120℃、反应时间20h、物料配比1：1，产率为63.0%～78.0%。

In this method,β-cyclodextrin epichlorohydrin polymer of 60-80 mesh, which has less background absorbance in ultraviolet and visible region compared to other ion-exchanger resins, was used to support direct adsorption of tartrazine from aqueous solutions to form a solid complex (tartrazine-β-CDP complex). The effects of pH, temperature, time and ionic strength on the β-CDP including tartrazine were determined.

在这个方法中，所利用的β-环糊精聚合物（60-80目）和离子交换树脂相比，在紫外和可见光区吸收很小，其作为固体相的支持体，并用於从样品溶液中分离收集柠檬黄，然后在435nm波长下直接用於测定。

One new hydroxypropyl hydroxyethyl starch derivative with fine thermoplasticity ,of which glass temperature T g≈140℃ and flow temperature T f≈170℃,was prepared when corn starch was properly coupled with epichlorohydrin then hydroxypropylated and hydroxyethylated in high substitution values.

以淀粉衍生物作为添加剂与非降解性塑料等复合制备可降解材料时，淀粉衍生物的热塑性是一项非常重要的指标。

Synthesis of cationic lignin flocculant by Lignin, epichlorohydrin and trimethylamine was obtained.

研究了木质素与环氧氯丙烷、三甲胺合成木质素季铵盐的工艺。

Chloro-2-hydroxypropyl trimethylammonium chloride was synthesized by using trimethylamine hydrochloride and epichlorohydrin as the raw materials and anhydrous as solvent.

以无水乙醇作溶剂、三甲胺盐酸盐和环氧氯丙烷为原料合成了3-氯-2-羟丙基三甲基氯化铵，探索出最佳合成条件为：n∶n为0.95∶1，反应温度为40~50℃，反应时间为30m in，所得产品质量分数大于98%，收率达90%。

Urushiol -based epoxy acrylate was prepared from urushiol, epichlorohydrin and acrylic acid.

以漆酚、环氧氯丙烷、丙烯酸为主要原料，通过两步反应合成了漆酚基环氧丙烯酸酯，其结构经IR表征。

Effects of ratio of sodium allylate to epichlorohydrin, reaction temperature and time and way of adding materials on the yield of allyl glycidyl ether were investigated.

讨论了原料摩尔比、反应温度、反应时间、投料方式等因素对反应收率的影响。

Anti-aging effects of non-lead and non-nickel antiager of 4,4 -Bis(alpha,alpha-dimethylbenzyl)diphenylamine(445)and 2-phenyl mercaptan parallelism imidazole were dealt with on the mechanical properties and vulcanizing performance of epichlorohydrin rubber.

研究了不含铅、镍重金属盐的防老剂445[4，4′-双(2，2-二甲基苄基)二苯胺]和2-硫醇基苯骈咪唑用于氯醚橡胶的防老化作用，考察了防老剂对ECO的力学性能和硫化特性等性能的影响。

A novel epoxy resin was obtained through the condensation reaction of the azomethine and epichlorohydrin in NaOH solution.

通过对羟基苯甲醛双缩对苯二胺席夫碱与环氧氯丙烷在NaOH液中缩合，合成一种新型环氧树脂。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失