英语人>网络例句>烯 相关的搜索结果
网络例句

与 烯 相关的网络例句 [注:此内容来源于网络,仅供参考]

In regard to C〓-functionalized hydrophilicpolymer , we synthesized the adducts of C〓 with polyallyl-amine and poly( allylamine- co -hydroxypropyl methacrylate ).

作为〓修饰的水溶性高分子体系,我们合成了丙基胺均聚物和丙基胺-甲基丙酸羟丙酯共聚物,并使之与〓进行反应。

Synthesis and application of formaldehyde-free dye-fixing agent ENF;2. Chlorine-resistant reactive dye-fixing agent CRS was prepared by mixing polyamine CS and polymer CR synthesized by dimethyldiallyl-ammonium chloride and allylamine.

文章以二甲基二丙基氯化铵和丙基胺为原料合成聚合物CR,与胺类聚合物CS复配制备活性染料耐氯固色剂 CRS,用于棉活性染料染色布固色整理,研究其耐氯性能。

This dissertation focused on two types of reactions, oxidative allylation of 1, 3-dicarbonyl compounds and ring-opening allylation of epoxides.

我们重点考察了两类反应:1, 3-二羰基类化合物的不对称丙基化反应和环氧化合物的开环丙基化反应。

Chiral compounds Ⅰ for the first time was applied to allylation of acylhydrazones with allyltrichlorosilane and the results showed that the compound Ⅰ can contribute to the occurrence of the reaction.

首次将手性化合物Ⅰ应用于丙基三氯硅烷和酰腙的丙基化加成反应中,结果表明化合物Ⅰ能够促进该反应的发生。

The terminal allylation reaction was studied which was influenced by reaction time, reaction temperature, category and dosage of allylation reagent and molecular weight of polyether.

其次对双羟基聚醚的端丙基化反应进行研究,讨论了反应时间、反应温度、聚醚分子量、丙基化试剂的种类和用量对反应的影响。

The allylation reactions of aromatic aldehydes or ketones with allyl bromide were carried out in 60%~98% yields with Sn/H2O under ultrasound irradiation at room temperature for 45 min.

超声波作用下,Sn/H2O体系中,芳香醛酮在室温下进行丙基化反应,45min内得到60%~98%的丙基化产物

Herein, we describe a novel catalysis of palladium complex, which mediates tandem allylation of o-phenylenediamines with 2-ene-1,4-diols using water as solvent.

在本实验中,我们探讨邻-苯二胺类和2——1,4—二醇类在水中进行连续两次丙基化的一个新的钯催化系统。

Objective: A method was developed for the determination of acrylamide in food and the levels of acrylamide in amylaceous and fried food in market were analyzed using this method.

目的:建立食品中丙酰胺的测定方法,并对市场上淀粉类、油炸类食品进行丙酰胺含量的初步了解。

In this paper, a series of 4,5-dithiacrown ether annulated 1,3-dithiole-2-thiones 8a~8d were prepared via condensing 4,5-bis-1,3-dithiole-2-thione (7) with 1,ω-dimercapto polyglycol derivatives in high dilution. The obvious template effect was found during the synthesis of 8c-8d.

在高度稀释条件下,经4,5-二溴甲基-1,3-二硫杂环戊-2-硫酮(7)和多缩乙二醇的1,ω-二巯基衍生物的缩合反应,方便地合成了4,5-位带二硫杂冠醚残基的2-硫代-1,3-二硫杂环戊的衍生物8a~8d,中间体硫杂冠醚8c~8d的合成中有明显的&模板效应&。

In this paper, a series of 4,5-dithiacrown ether annulated 1,3-dithiole-2-thiones 8a~8d were prepared via condensing 4,5-bis-1,3-dithiole-2-thione (7) with 1,ω-dimercapto polyglycol derivatives in high dilution. The obvious template effect was found during the synthesis of 8c-8d.

在高度稀释条件下,经4,5-二溴甲基-1,3-二硫杂环戊-2-硫酮(7)和多缩乙二醇的1,ω-二巰基衍生物的缩合反应,方便地合成了4,5-位带二硫杂冠醚残基的2-硫代-1,3-二硫杂环戊的衍生物8a~8d,中间体硫杂冠醚8c~8d的合成中有明显的&模板效应&。

第57/100页 首页 < ... 53 54 55 56 57 58 59 60 61 ... > 尾页
推荐网络例句

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意,我建议我们在价格上大家各让一半。

After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.

一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。