十二烷基

The synergic effects between 1,4-Bis(α-alkylpyridinium)butane/hexane Dibromide gemini surfactantsand sodium dodecyl benzoic sulfatehave been studied,the effect of the ratio of GPS/SDBS on the surface tension and critical micellar concentrationof the mixture have been investigated.

研究了溴化1，4/1，6-双-α-烷基吡啶丁烷/己烷双子表面活性剂与普通阴离子表面活性剂十二烷基苯磺酸钠之间的协同效应，考察了二者复配比例对体系表面张力和临界胶束浓度的影响。

The paper reviewed the synthesis and production of the surfactant - dodecyl diphenyl ether sodium disulfonate .

介绍了十二烷基二苯醚二磺酸钠的合成及生产情况。

The preparation of esterified derivant : it is prepared by the esterifying reacting of above (3) product and 4g dodecylbenzene sulphonic acid heated in water bath at 40℃ within 30min.

聚环氧氯丙烷乙二醇哌啶接支酯化衍生物的制备：4g十二烷基苯磺酸于40℃水浴条件下聚环氧氯丙烷乙二醇哌啶接支衍生物进行酯化反应。

The ultraviolet photosensitive initiating system is composed of 4,4"-bis(N,N"-dimethylamino) benzophenone, 2-chlorohexaarylbiimidazole and a hydrogen donor coinitiator n-dodecyl mercaptan.

用光敏剂4，4′-二(N，N′-二甲基-氨基)苯甲酮、引发剂邻氯代六芳基双咪唑和氢给体助引发剂十二烷基硫醇组成光敏引发体系。

Still more so are the synthetic types, such as sulfonated dodecyl benzene and similar alkylates.

更有效的是合成型洗涤剂，例如十二烷基苯磺酸盐和类似烷基化物。

Supersonic wave disperse research indicated, ethanediol as the disperse medium, it could got suspending liquid about for firve days, but relatively large in grain size. However, combined use of lauryl sodium sulfate and maleic anhydride as disperse medium, the disperse result among water was better than the former, and it would be steady for two days.

超声分散研究表明，使用聚乙二醇作为分散介质，可得到分散五天左右的悬浮液，但分散后粒度较大，使用十二烷基硫酸钠和顺丁烯二酸酐混合作为分散介质在水中分散效果较好，可稳定两天左右。

The binding capacities of the water-soluble chitosan and its derivatives to taurocholate and glycocholate as bile salts were investigated in vitro.

修饰后的壳聚糖结合胆酸盐的能力增强，说明引入更多的胺基或铵基有利于对胆酸盐的结合，胺基上烷基与胆酸盐的甾环之间也应当产生疏水相互作用；同样我们在体外也研究了水溶性壳聚糖及其衍生物对硬脂酸钠和十二烷基硫酸钠的结合能力及其影响因素。

The results showed that sodium stearoyl glutamate and sodium lauryl sulfate are good co-emulsifiers for APG and they do not effect significantly on the formation of liquid crystal.

实验结果表明，在助乳化剂与烷基糖苷的复配过程中，硬脂酰谷氨酸钠和十二烷基硫酸钠有较好的助乳化作用，且对液晶的形成影响不大。

Compared with nonionic surfactant, the effect of anionic surfactant on natural gas storage in hydrates is stronger.

阴离子表面活性剂十二烷基硫酸钠对水合物储气的促进作用比非离子表面活性剂烷基多糖苷强。

Fungicide DDSCwas synthesized from tin powder,benzyl chloride and N,N-dimethyldodecylamine via two steps reaction.

以锡、氯化苄和二甲基十二烷基叔胺为原料，经过两步反应，合成了新型杀生剂二苄基二氯化锡。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷