表面活性剂

This task mostly synthesis dialkyl disulfonic sodium diphenyl methane and dialkyl disulfonic sodium diphenyl aether gemini surfactants.

本论文合成了二苯甲烷类与二苯醚类两类双烷基双磺酸基阴离子双子表面活性剂。

XRD and TEM confirmed that the novel mesoporous silica has a diamonded face centered cubic structure with Fd3m symmetry, which was first reported up to date.

论文的第五章，用三头季铵盐阳离子表面活性剂作结构导向剂，用硫酸锆作无机锆源，在水热条件下合成了一种新的类似于SBA-1分子筛的立方介观结构（Pm3n）的硫酸氧锆复合材料。

Five kind of intermediates are synthesized with the material of p-iso-Octylphenol and Dicarboxylic acid through two different routines in.

本文以辛基酚和五种二羧酸为原料，通过酰基化反应和酯化重排反应方法，合成了五种表面活性剂中间体。

The effect of short chain monohydric alcohols (ethanol, n-butanol) and dihydric alcohols (ethyleneglycol, 1,4-butanediol) on the aqueous two-phase system of cationic and anionic surfactants is studied.

研究了短链一元醇和二元醇(乙二醇、1，4-丁二醇)对正负离子表面活性剂混合溶液(十二烷基硫酸钠-十六烷基三甲基溴化铵-水)双水相的影响。

Structure has been shown to be of the utmost importance in the solution properties of aqueous dimeric surfactants.

在此基础上，本论文以壬基酚为原料，合成得到一系列Gemini阳离子表面活性剂及其中间体。

And in the process of research for temperature effect on π-A isotherm, it's proved that temperature has a little effect on the insoluble films of synthesized dimeric surfactants. But it has a great effect to the monomer of the surfactants.

另外，在研究温度对它的曲线影响时发现，温度对合成的二聚表面活性剂成膜的影响很小，而这种结构的单体受温度的影响非常明显。

In this liquid membrane system,P291〔diphosphoric acid〕and TRPOare used as synergistic mobile carrier,N205 as surfactant,liquid paraffin as film-strengthening agent,sulphonated kerosene as solvent,and (NH4)2CO3 solution as inner phase agent.

用P291〔二磷酸〕、TRPO协同流动载体，N205为表面活性剂，液体石蜡作膜的增强剂，磺化煤油作溶剂，(NH4)2CO3作内相试剂的乳状液膜体系，迁移富集钍。

This paper mainly studied the synthesis and characterization of some dissymmetric bis-quaternary ammonium gemini surfactants, then determined the surface tensions of their water solutions, finally calculated their critical micelle concentrations and build a surface tension-concentration model.

本文主要研究了非对称型季铵盐双子表面活性剂的合成与表征，测定了其水溶液的表面张力，并计算出其临界胶束浓度。

A series of dissymmetric Gemini surfactants with the structure ofC_(12H_(25)CH_(3_(2)N~CH_(2_(4)N~CH_(3_(2)C_mH_(2m+1),denoted as C_(12)-4-C_m(m is 14,16,18),have been synthesized with N,N-dimethylalkylamine and 1,4-dibromobutane as the initial reagents.

以N，N-二甲基脂肪胺和1，4-二溴丁烷为原料，合成了一系列具有不同疏水链的不对称Gemini表面活性剂C12H25(CH3)2N+(CH2)4N+(CH3)2CmH2m+1(C12-4-Cm，m=12，14，16，18)，并通过1H NMR、MS和元素分析等方法鉴定其结构。

Progress in dissymmetric Gemini surfactants;2. A series of dissymmetric Gemini surfactants with the structure ofC_(12H_(25)CH_(3_(2)N~CH_(2_(4)N~CH_(3_(2)C_mH_(2m+1),denoted as C_(12)-4-C_m(m is 14,16,18),have been synthesized with N,N-dimethylalkylamine and 1,4-dibromobutane as the initial reagents.

以N，N-二甲基脂肪胺和1，4-二溴丁烷为原料，合成了一系列具有不同疏水链的不对称Gemini表面活性剂C12H25(CH3)2N+(CH2)4N+(CH3)2CmH2m+1(C12-4-Cm，m=12，14，16，18)，并通过1H NMR、MS和元素分析等方法鉴定其结构。

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。