英语人>网络例句>synthesized 相关的网络例句
synthesized相关的网络例句

查询词典 synthesized

与 synthesized 相关的网络例句 [注:此内容来源于网络,仅供参考]

A new method for synthesizing rosin allyl alcohol ester was studied. p-Toluenesulfonic acid allyl alcohol ester was first synthesized by O-acylation of allyl alcohol with p-toluene sulfonyl chloride, using NaOH as catalyst. Then rosin allyl alcohol ester was synthesized from sodium resinate and p-toluenesulfonic acid allyl alcohol ester.

探索了一种两步合成松香烯丙醇酯的新方法,即先以烯丙醇和时甲苯磺酰氯为原料,以NaOH为催化剂,通过O-酰化反应合成中间体对甲笨磺酸烯丙醇酯,再与松香钠皂发生亲核取代反应合成目标产物松香烯丙醇酯。

On the basis of summarizing the current synthesis methods of Polydimethylsiloxane,we have successfully synthesized Polydimethylsiloxane by choosing the process of green solid acid as the synthesis method, Polydimethylsiloxane's synthesization is synthesized with D4 and MM as raw materials by three steps as retractation polymerization and equilibrium with titanium oxide as catalyzer.

我们在考察了目前现有的合成方法的基础上,选择了用绿色固体酸氧化钛做催化剂以八甲基环四硅氧烷(D4)和六甲基二硅氧烷为原料经缩合、聚合、平衡化三步反应来合成二甲基硅油。

Mordenite has a significant effect on the activity of catalyst, results of test showed: with soluble glass as main feedstock and addition of crystal precursor, thecrystalization time can be reduced, and the synthesized mordenite has higher surface area and structure of small crystal particulate and big pore diameter. Through ion exchange with ammonium and acid, the synthesized mordenite is suitable to prepare isomerization catalyst.

丝光沸石对催化剂活性有较大影响,试验结果表明:以水玻璃为主要原料,加入晶种可缩短晶化时间,合成的丝光沸石具有较高的比表面积及小晶粒大孔径结构,经铵交换及酸交换后适于制备异构化催化剂。

Besides, the derivatives were synthesized successfully by the similar acid binding agent system, such as tris(4-nitrophenyl) thiophosphate, tris(4-toluene)thiophosphate. The derivative of maleic anhydride was synthesized by the simple method, and its yield was above 90%.

采用类似的缚酸剂体系成功地合成了硫代磷酸三(4-硝基苯)酯、硫代磷酸三(4-甲基苯)酯,并用简单的方法合成了硫代磷酸三(4-氨基苯)酯的马来酸酐衍生物——硫代磷酸三(4-马来酸氨基苯)酯,产率达90%以上。

Two compounds were synthesized with two methods. The two compounds can be synthesized by two steps with triethylamine as catalyst.

分别用氢氧化钠、三乙胺为缚酸剂,3-氨基-2-丁醇、2-氨基-3-戊醇、环己酮和二氯乙酰氯为原料,采用一步法和分步法合成了两种潜在除草剂安全剂。

Nitratomethyl-3-ethyloxetane was synthesized by the process of cyclization, nitation from trimethlolpropane and diethyl carbonate, and the homopolymer of 3-nitratomethyl-3-ethyloxetane was synthesized with 1,4-butanediol as initator and boron trifluoride etherate as an catalyst by cationic ring-opening polymerization.

以三羟-甲基丙烷和碳酸二乙酯为原料经环化、硝化两步反应合成了化合物3-硝酸酯甲基-3-乙基氧丁环;采用1,4-丁二醇为引发剂,三氟化硼乙醚(BF3Et2O)为催化剂,NIMEO发生阳离子开环聚合得到一种端羟硝酸酯均聚醚PNIMEO。

Through physical analysis of crude oil in Suizhong 36-1 Oilfield, initial selection is made on polymer viscosity reducing agent monomer accordantly and a series of viscosity reducing agents are synthesized, through result selection and research of all the synthesized viscosity reducing agents.

通过对绥中 3 6 1油田原油物性的分析,有针对性地对聚合物降粘剂单体进行了初选,继而合成了一系列聚合物降粘剂。

In route 1, geranylamine was synthesized from geraniol via Mitsunobu reaction and aminolysis. Adamantan-2-amjne was synthesized from adamantan-2-one via reductive imination and catalytic hydrogenation.

第一条路线香叶醇经Mitsunobu反应、胺解反应得到香叶胺;2-金刚烷酮经亚胺化、硼氢化钠还原、催化氢化脱节基得2-金刚烷胺。

A series of antimony mercaptide compounds which formula are Sb 〓 and Sb S (CH〓〓COOR 〓(R represents an alkyl or aryl, aralkyl, n=0~2) have been synthesized. A new synthetic method has been invented to solve the defect of abroad patent method which has complex technological conditions and singleness intermediate compounds. A new catalyst QL-1 and preactivated antimony trioxide and other means have been used to avoid neutralizing, washing, separating and other procedures of intermediate and simplifing process flow at the same time. According to this new technique, a series of antimony mercaptides and their intermediate products have been synthesized with high yield.

合成了结构为SbS(CH〓〓COOR〓及Sb〓(R为烃基或芳烷基,n=0~2)的一系列硫醇锑化合物,针对国外专利报道的合成工艺存在着工艺条件苛刻,同时需多步完成,操作复杂,而且中间体品种单一的缺陷,发明了一种一步法合成硫醇锑化合物的新工艺,采用QL-1催化剂,且将三氧化二锑预先活化,变固—液相反应为液—液相反应,同时可免除中间体的中和、洗涤、分离等工序,工艺流程简化,产品收率高,且能制得系列硫醇锑产品。

This thesis includes five parts as follows.1. The backgrounds and some relative concepts of this work are briefly introduced. The photochemistry of benzamides and compounds with thiourea functional group is also concisely reviewed.2. Total of fourteen benzamides with different substituted groups have been synthesized and structurally characterized. Better photoreaction time for that kind of compounds at given concentrations is confirmed by tracking its'UV spectrum and GC chromatogram. A representative dibenzophenone photoproduct has been determined by X-ray crystallography. The mechanisms of photoreaction of benzamide have been proposed.3. Total of seven N-chloro(phenylmethylenebenzenamines with different substituted groups and sixty-one thiourea derivatives have been synthesized and structurally characterized.

论文的主要内容如下:1、简要介绍本论文工作的研究背景,并对苯甲酰胺和具有硫脲官能团类化合物的光化学研究进展进行简要的总结。2、合成与表征了14个具有不同取代基的苯甲酰胺类化合物,利用紫外光谱和气相色谱确定了此类化合物较佳光照时间,测定了一个具有代表性光解产物的单晶结构,提出了苯甲酰胺类化合物的光反应机理。3、合成与表征了7个带有不同取代基的氯代苯甲酰亚胺中间体及61个硫脲衍生物,测定了两个具有代表性化合物的单晶结构。

第5/100页 首页 < 1 2 3 4 5 6 7 8 9 ... > 尾页
推荐网络例句

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

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。