查询词典 surfactants

Three cationic surfactants, N -dodecyl- N -(2-hydroxyethyl)- N , N -dimethylammonium bromide, N -tetradecyl- N -(2-hydroxyethyl)- N , N -dimethylammonium bromide and N -cetyl- N -(2-hydroxyethyl)- N , N - dimethylammonium bromide have been synthesized.

合成了 N -十二烷基- N -(2-羟乙基)- N ， N -二甲基溴化铵、 N -十四烷基- N -(2-羟乙基)- N ， N -二甲基溴化铵和 N -十六烷基- N -(2-羟乙基)- N ， N -二甲基溴化铵等3个季铵盐阳离子表面活性剂。

The hydrophobic monomers such as glycidyl octyl dimethylammonium chloride, glycidyl dodecyl dimethylammonium chloride, glycidyl tetradecyl dimethylammonium chloride was applied to the hydrophobic modification of two kinds of sodium cellulose sulfate in isopropyl alcohol under 65℃.The success of synthesis of a kind of novel amphoteric surfactant by FT-IR and NMR. 3. By the measuring surface tension of all kinds of amphoteric polymeric surfactants based on cellulose, the critic micelle concentration was obtained such as 0.4wt%、0.3wt%、0.25wt% and corresponding surface tension was about 30mN/m

通过动态接触角测量仪确定了各种纤维素表面活性剂的表面张力和临界胶束浓度，结果表明该类表面活性剂可与小分子表面活性剂的降低表面张力的能力相媲美，最低可达28.41 mN/m，随着疏水基中碳链的增长，降低表面张力的能力下降，而临界胶束浓度从0.4wt%相应降低0.25wt%；应用环境扫描电镜确定其不同浓度胶束形态，结果表明在较低浓度下形成棒状单分子胶束，随着浓度的升高，单分子胶束逐渐聚集成树枝状胶束，进一步提高浓度，则聚集成网状结构；此外，采用了高级流变仪对其溶液的流变性质进行了研究，结果表明其溶液属于剪切变稀流体，是高分子溶液特有的性质。

The micelle shape transformation of tert-octylpheny phenol polyethylene glycol ether (TX-100), sodium dodecyl benzene sulfonate and tetradecyl trimethyl ammonium bromide in heavy water solutions was studied by 1H nuclear magnetic resonance spectroscopy, including an NMR self-diffusion experiment. These experiments showed that the surfactants formed several shapes of micelles (spherical, ellipsoidal, and rodlike) at the respective concentrations which were far above their critical micelle concentration.

运用核磁共振一维氢谱和自扩散实验方法研究了聚乙烯乙二醇异辛酚醚(TX-100)、十二烷基苯磺酸钠和十四烷基三甲基溴化铵三种不同类型的表面活性剂在重水溶液中的胶束形状转变，发现它们在临界胶束浓度以上的各自相应浓度都有胶束形状的变化（由球状转变为椭球状或棒状）。

The reaction of metallic tin with nitric acid was investigated in the presence of different types of technical surface active agents employing the thermometric method as developed by Shams El-din for evaluating the inhibition efficiency of different surfactants.

研究了有各类工业用表面活性剂存在条件下金属锡与硝酸的反应，采用Shams El-din建立的测温法评估不同表面活性剂的缓蚀效率。

In present paper the Surface electric properties of alumina trihydrate and its effect on adsorption properties of surfactants on ATH / Water interface were examined.

l前言氢氧化铝作为无机阻燃剂在塑料工业中已得到了广泛应用，其表面有机化改性是其应用中最引人注目的重要课题¨q'。

These compounds, properly designed, can be 1～2 orders of magnitude more surface active than surfactants with a single corresponding hydrophobic and a single corresponding hydrophilic group in the molecules. In this work, selected trimeric surfactant TNP is first synthesized.

本文研究了Gemini表面活性剂GNP和GTB用于脂肪酸酯的碱性水解催化作用，测定了水解速率常数和反应活化能，从动力学机理上说明了所合成的Gemini表面活性剂对脂肪酸酯水解反应有明显的胶束催化作用。

Concentrated emulsion polymerization of styrene in the presence of two polymerizable surfactants, sodium undecylenic acid and newly synthesized CS-1 was carried out.

在苯乙烯的浓乳液聚合体系中，考察了两种可聚合的表面活性剂十一烯酸钠和新近合成的阴离子型羧酸盐类的表面活性剂CS-1的聚合行为。

BaWO_(4) nanoparticles of wire,rod,and hollow spherical shapes were prepared in different microemulsion systems with octane as the oil,and undecylenic acid and/or dodecylamine as the surfactants.

在十一烯酸和十二胺作表面活性剂、正辛烷为油形成的油包水型微乳液体系中，通过调节体系的组成，使Na2WO4和BaC l2发生反应，分别制得了丝状、棒状和空心球状的BaWO4纳米粒子。

Also, CdWO4 nanowires and BaWO4 nanoparticless with different shapes, such as wire-like, rod-like, and hollow spherical, were prepared in different microemulsion systems using octane as oil, undecylenic acid and/or dodecylamine as surfactants.

此外，在十二胺、十一烯酸和正辛烷组成的反胶束乳状液体系中合成了不同形貌的BaWO4纳米粒子及丝状CdWO4纳米粒子。

CdWO4 nanowires and BaWO4 nanoparticles with different shapes, such as wire-like, rod-like, and hollow spherical, were prepared in different microemulsion systems using octane as oil, undecylenic acid and/or dodecylamine as surfactants.

测试了不同形貌的BaWO4纳米粒子的光学性质，结果表明BaWO4纳米粒子形貌、大小及结晶状态不同对其光学性质将产生一定影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。