烯基

A high molecular weight polyisobutenyl succinimide dispersant with high nitrogen content and good thermal and oxidative stabilities was developed.

采用氯化烃化工艺和后偶联反应技术开发了一种氮含量高、热稳定性和氧化稳定性好的高相对分子质量的聚异丁烯基丁二酰亚胺分散剂。

The studies found that compatibility between ZDDP and succinimide dispersants primarily depended upon active α-amino-group content in succinimides. The active α-amino-group content was affected by the alkylation and amination processes, and also affected by the structure of polyisobutylene in succinimides.

研究结果表明，丁二酰亚胺与 ZDDP 的相互作用主要取决于丁二酰亚胺中活泼的伯胺氮含量，而伯胺氮含量则决定于丁二酰亚胺在生产中的烃化、胺化工艺和聚异丁烯基的结构。

New compounds of the type of unsymmetrically substituted ureas are synthesized by a series of reactions of preparing organic isocyanates by Curtius rearrangement with aromatic amine.

以3 苯基 2 丙烯酸为原料，用Curtius重排的方法合成异氰酸酯，直接与芳香胺作用，合成了5 种N 取代苯基 N′苯丙烯基脲类化合物。

The chemical components of volatile oil from Foemiculum Vulgare Mill were determined by GC-MS.

用GC－MS方法测定了小茴香挥发油的全组分，其中对-丙烯基茴香醚的含量为82.65%。

Then the MIP coating was copolymerized and anchored onto the surface of the silica monolith.

然后分子印迹化合物通过与硅胶整体柱上的烯基发生共聚反应从而固定在其表面。

Using it as emulsifier for the microencapsulation of docosahexaenoic acid spirulina oil, good results are obtained.

以合成的辛烯基琥珀酸淀粉酯为乳化剂应用在DHA藻油的微胶囊化中，取得了非常好的效果。

The reaction of sodium alkylcycloperitadienide with metal chlorides gave derivatives of bisdichlorides of titanium, zirconium and hafnium where alkyls were n-propyl and n-butyl.

本文报导烷基环戊二烯基钠与金属氯化物反应合成钛、锆和铪的双金属二氯化物以及通过卤素交换制备双钛的二氟化物的方法。

However, no examples of a copper-catalyzed combination of N-alkenylation and N-alkylation of amides had been reported.

然而，组合铜催化的酰胺N—烯基化和N—烷基化偶联生成二氢吡咯衍生物的反应未见文献报道。

Part Ⅲ. Reactions of fluoroalkanesulfonyl azides with enoxysilanes.

第三部分，氟烷基磺酰叠氮与一些烯基硅醚的反应。

The olefmation of benzyl zinc bromides with aromatic aldehydes, which has some theoretical means and good application expectation, has good stereoselectivity and regioselectivity.

烯基化反应具有较好的立体选择性和区域选择性，具有一定的理论意义和较好的应用前景。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。