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Bentonite was modified with cetyl pyridine bromide first, and then compounded with Al2(SO4)3 this paper.

代十六烷基吡啶对天然膨润土进行改性,制得CPB-膨润土,然后与Al2(SO4)3复合制得复合CPB-膨润土。

Effect of different surfactants on the UV intensity of Al(superscript 3+)-MXFX have been studied. Is Cetyl Trimethy-lammonium Bromide can increase the UV intensity of Al(superscript 3+)-MXFX is discovered. Based on this reaction, the reaction conditions in detail and proposed a simple, rapid and sensitive new method for the determination of MXFX by UV method is inve stigated. This method has been applied for the determination of MXFX in tablet with satisfactory results.

通过研究不同表面活性剂对Al(上标 3+)-莫西沙星体系紫外特性的影响,发现十六烷基三甲基化铵对该体系有显著的增敏作用;系统研究了CTMAB-Al(上标 3+)-MXFX反应体系的紫外特性,利用这一反应体系,建立了简单、快速、灵敏的测定莫西沙星的紫外分光光度法,选择了最佳实验条件,并将此方法用于莫西沙星片剂的测定,结果满意。

The effect of guanidine hydrochloride concentration on the oxidative refolding of denatured-reduced lysozyme of high concentration in the presence of artificial chaperone , that is, cetyl trimethyl ammonium bromide and β-cyclodextrin,was studied.

研究了表面活性剂十六烷基三甲基化铵加β-环糊精和盐酸胍对高浓度变性-还原溶菌酶氧化复性的影响,利用基于二态复性模型的表观动力学模型分析了溶菌酶的复性过程。

In Na2CO3-NaHCO3 buffer solution, the apparent activation energy and activation parameters for cetyl trimethylammonium bromide micelle-catalytic hydrolysis of p-nitrophenyl propionate have been measured, and the effects of inorganic salts (such as NaCl, NaBr and Na2SO4) on them have also been investigated.

在Na2CO3-NaHCO3缓冲溶液中,测定了对硝基苯酚丙酸酯的十六烷基三甲基化铵胶团催化反应的表观活化能和活化参数;考察了无机盐(NaCl, NaBr, Na2SO4)对该催化反应的影响。

In this article, the preparation of benzyl 4-hydroxybenzoate in water was reported, with 4-hydroxybenzoic acid and benzyl chloride as main raw materials, cetyl trimthylamonium bromide as phrase transfer catalyst.

采用改进工艺,以正十六烷基三甲基化铵为相转移催化剂,水为溶剂,对羟基苯甲酸和氯化苄为主要原料,合成对羟基苯甲酸苄酯。

To investigate the effect of surfactant self-assembling properties on the template synthesis of porous inorganic materials, the critical micelle concentration of surfactant cetyl trimethylammonium bromide was measured in both water and aqueous ethanol solvent using steady-state fluorescence techniques.

为了研究乙醇-水混合溶液中表面活性剂的自组装特性对多孔无机材料模板法合成的作用,采用稳态荧光法测定了乙醇-水混合溶剂的组成变化对十六烷基三甲基化铵临界胶束浓度的影响。

Mesoporous molecular sieves were synthesized by using natural clay, sodium silicate and aluminum chloride as raw materials and cetyl trimethyl ammonium bromide as template agent at room temperature alkaline condition.

室温条件下以天然黏土、硅酸钠和氯化铝为原料,十六烷基三甲基化铵为模板剂合成介孔分子筛。

Using cetyl trimethyl ammoniunm bromide as templating agent, the mesoporous TiO_2 with special performance was synthesized by a tartaric acid sol-gel method. The UV irradiation was used in this process.

以十六烷基三甲基化胺为模板剂,采用溶胶-凝胶法,在溶胶-凝胶制备过程中引入紫外光照辐射,制备出具有一定特殊性能的中孔TiO2材料。

The synergistic effect between chlorinate paraffin,dechlorane plus, decabromodiphenyl oxide and on fire-retardant properties of low density polyethylene was studied.

研究了氯化石蜡、双环辛烷以及十联苯醚并用阻燃低密度聚乙烯的阻燃协同效应,采用锥形量热仪测试了阻燃体系的燃烧特性。

The chemical structure of the product was characterized by means of the melting point and IR. The results show that tetraethylammonium bromide which was used as a phase transfer catalyst in this reaction had optimization effect on the interfacial diffusive reaction of BTC and PNP. Higher concentration of sodium hydroxide, lower temperature and a higher dosage of BTC produced a small amount of 4-nitrophenyl chloroformate, while lower concentration of sodium hydroxide and a lower dosage of BTC made reaction incomplete, which affected the yield.

结果表明,在碳酸二(4-硝基苯基)酯合成中使用的相转移催化剂四乙基化铵对受界面扩散控制的BTC气与对硝基酚钠反应有良好的相转移催化效果;氢氧化钠质量分数较低时,酚钠盐向溶有BTC的油相扩散速度较小,较高时会产生氯甲酸对硝基苯酯;温度较低、BTC量较高时,会产生少量氯甲酸对硝基苯酯,BTC用量较低会使反应不完全,这些都影响着收率。

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