查询词典 surfactant

Temperature-sensitive hydrogels P(NIPA-co-DiAB) with aromatic group as hydrophobe was were prepared by free radical micellar crosslinking copolymerization with N-isopropyl acrylamide, N,N-dially benzylamine as comonomers, N,N-methylene-bis-acrylamide as crosslinker, sodium dodecyl sulfate as surfactant and ammonium persulfatetetramethylethylenediamine as initiator system.

以N-异丙基丙烯酰胺、N，N-双烯丙基苄胺为共聚单体、N，N-亚甲基双丙烯酰胺为交联剂、十二烷基硫酸钠为表面活性剂、过硫酸铵-四甲基乙二胺为氧化还原引发体系，采用自由胶束交联共聚法合成了疏水基团为芳香基的疏水改性温敏性智能水凝胶P(NIPA-co-DiAB)。

The invention relates to a preparation and purification method of bicaudal gemellus quaternary ammonium salt type cationic surfactant.

本发明涉及一种双尾双子季铵盐型阳离子表面活性剂的制备及纯化方法。

Effect of nonionic surfactant TX-100 on biphenol A degradation in the natural surface coatings by Pseudomonas putida was investigated.

研究非离子型表面活性剂曲拉通（TX-100）对恶臭假单胞菌降解生物膜中双酚A的影响。

Keywords Catalytic spectrophotometry, surfactant, bromocresol green, silver

本法是迄今为止催化光度法测定银的最灵敏方法之一。

Based on the associated reactions of bromothymol blue with cationic surface- active agent when put in phosphate buffer solution of pH7.5～8.5 and fades, a new way for determination of cationic surfactant by Spectrophotometric methods was established.

摘 要：基于溴百里酚蓝在 pH7.5～ 8 5的磷酸盐缓冲介质中，与阳离子表面活性剂发生离子缔合反应，而使溴百里酚蓝褪色这一现象，建立了分光光度测定阳离子表面活性剂的新方法。

PS is mostly synthesized and secreted by alveolar typeⅡ cells and also by Clara cells in the peripheral airways to a lesser extent, and approximately 7% of alveolar surfactant reaches the bronchiolar tree via the mucociliary escalar.

PS主要由肺泡Ⅱ型上皮细胞产生，少部分由外周气道的Clara细胞产生，约7％的肺泡表面活性物质经纤毛运送到达细支气管。

The surface tension of zwitterionic surfactant α-capric betaineand the aggregation number of its micelles have been investigated by means of drop volume method and steady-state fluorescence technology respectively.

采用滴体积法和稳态荧光法分别测定了α-癸基甜菜碱两性表面活性剂的表面活性及胶束聚集数，并考察了pH值对其表面活性的影响。

In detail the process of the invention relates to a method for solubilising an oil-soluble pigment into an oil or fat by extraction of a solid preparation containing the oil-soluble pigment comprising the steps of a mixing the solid preparation containing the pigment with water, an extraction medium containing an edible oil or fat, and a nonionic surfactant having a hydrocarbyl group, an acyl group or a substituted hydrocarbyl or acyl group containing at least 6 carbon atoms; b optionally centrifugalize the mixture obtained and separate the oil phase.

具体而言，本发明方法涉及一种通过萃取含有油溶性颜料的固体制剂而使油溶性颜料在油或脂肪中增溶的方法，其包括步骤a将含有颜料的固体制剂与水、含有食用油或脂肪的萃取介质以及具有含至少6个碳原子的烃基、酰基或取代烃基或取代酰基的非离子表面活性剂混合，和b任选将所得混合物进行离心并且分离油相。

In the system, cetyl trimethyl ammonium bromide was used as the surfactant, Octane was used as the solvent and hexanol was used as the co-solvent.

在此萃取体系中，以十六烷基三甲基溴化铵作为表面活性剂，辛烷和己醇作为溶剂及助溶剂。

The new surfactant was synthesized from the main starting materials such as lauric acid, p-cresol, chlorosulphonic acid and ethylene diamine, by 5 classic reactions which are acyl chlorination, esterification, Fries rearrangement, sulfonation and condensation, with total yield of 58%.

作者以十二酸、对甲酚、氯磺酸、乙二胺等为主要原料，共采取了酰氯化、酯化、Fries重排、磺化和缩合等5步经典的单元反应，合成了该表面活性剂，总收率为58％，并探讨了各步反应的条件对收率的影响。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。