含松香骨架甜菜碱类两性表面活性剂的合成

以脱氢枞酸为原料,合成了3种新型含松香骨架的甜菜碱类表面活性剂:N-(2-脱氢枞酰氧基)乙基-N,N-二甲基羧甲基甜菜碱,N-(2-脱氢枞酰氧基)乙基-N,N-二甲基磺丙基甜菜碱和N-(2-脱氢枞酰氧基)乙基-N,N-二甲基磷酸酯甜菜碱。通过红外和核磁共振氢谱对产物结构进行表征,3种甜菜碱cmc分别为3.16 mmol.L-1、3.01 mmol.L-1和2.56 mmol.L-1,此时表面张力分别为31.91 mN.m-1、33.20 mN.m-1和25.79 mN.m-1,说明3种甜菜碱具有好的表面活性。     

两性表面活性剂甜菜碱分析中一些问题的探讨

本文采用联苯胺代替洁尔灭标定磷钨酸标准滴定溶液,提高了两性表面活性剂甜菜碱分析的准确度。     

两性表面活性剂——甜菜碱

本文主要论述甜菜碱系两性表面活性剂之制备、性能及其应用。     

磷酸酯甜菜碱两性表面活性剂的研究进展

介绍了磷酸酯甜菜碱两性表面活性剂的合成、性能以及应用。     

新型甜菜碱两性表面活性剂的合成

本文以脂肪醇缩水甘油醚（Ｉ）为原料，经开环和羧甲基化两步反应合成了三种含有羟丙基的甜菜碱型两性表面活性剂（Ⅱ）。     

脱氢枞酰胺乙基磺酸盐表面活性剂合成与性能研究

以脱氢枞酸为主要原料合成了脱氢枞酰胺乙基磺酸钠表面活性剂,用红外光谱对其结构进行了表征。在25℃下测定了其表面张力,得到cmc=1.0×10-4mol/L,cγmc=31.99 mN/m。在25℃下用改进Ross-Miles法测定其泡沫性能,ρ(活性剂)=0.6 g/L时,起泡高度达到150 mm以上,稳泡性t1/2=16 min。在45℃条件下测定活性剂与大庆采油四厂脱水脱气原油的界面张力,w(活性剂)=0.2%时,体系的界面张力达到9.3×10-3mN/m;考察了NaCl对界面性能的影响,(ρNaCl)=0.3 g/L时,界面张力降低至2.0×10-3mN/m。     

去氢枞酸基新型甜菜碱类两性表面活性剂的合成

从歧化松香中分离提纯去氢枞酸,然后以去氢枞酸为原料,经去氢枞酸缩水甘油酯及叔胺中间体,合成了N-(3-去氢枞酰氧基-2-羟基)丙基-N,N-二甲基羧甲基甜菜碱和N-(3-去氢枞酰氧基-2-羟基)丙基-N,N-二甲基(2-羟基)磺丙基甜菜碱这两种新型甜菜碱类两性表面活性剂。通过紫外、红外及质谱分析,对目标产物进行了结构表征,并对其表面张力和临界胶束浓度进行了测定。     

新型烷氧化磺基甜菜碱两性表面活性剂的合成（二）

合成了一种新型烷氧基化磺基甜菜碱两性表面活性剂，性能试验表明，该物质具有极强的钙皂分散力、抗硬水能力和较好的水溶性。     

多功能两性表面活性剂椰油酰胺丙基甜菜碱

概述了国内外多功能两性表面活性剂椰油酰胺丙基甜菜碱的制备与性能。详细分析了椰油酰胺丙基甜菜碱的结构特性,系统地介绍了其反应原理和制备工艺。提出了提高产品质量和收率的可行性方案,对其水溶、去污、发泡、增稠、调理以及温和等突出性能作了介绍,并举例进行应用方面的讨论。     

一种木质素磺酸盐两性表面活性剂的合成及表征

首先使环氧氯丙烷与木质素磺酸钙(SL)在相转移催化剂四丁基溴化铵作用下发生反应,生成木质素中间体;然后中间体再与N-甲基吡咯烷酮(NMP)反应生成木质素磺酸钙两性表面活性剂(LSAS)。通过正交试验确定较佳反应条件为:m(SL)∶m(NMP)=1∶2.0,反应时间为3.5 h,pH=9,反应温度为80℃,此时产物中w(氮)=1.51%。通过元素分析、红外光谱和紫外光谱确证了目标产物的结构。     

甜菜碱型两性表面活性剂的类型、合成及研究进展

介绍了不同取代基类型的甜菜碱表面活性剂的合成方法以及国内外的研究进展.     

Synthesis and properties of amphoteric surfactants

Carboxylic amphoteric surfactants containing ether tertiary amino and carboxylic groups were prepared. Specifically, 2-(2-dimethyl-aminoethoxy)octadecanoic, hexadecanoic and dodecanoic acid hydrochloride were synthesized. Surface and interfacial tension, emulsifying action, corrosion inhibition effect and after-treatment of direct dyed cotton fabrics were determined for these surfactants. Antibacterial activities were also examined. Chem. Eng. Dept., Faculty of Engineering.     

无盐咪唑啉两性表面活性剂的合成及性能研究

以丙烯酸及丙烯酸衍生物为原料,采用两步法成功合成出了无机盐含量≤0．06％的无盐咪唑啉。产品外观澄清透明,与阴离子、阳离子和非离子表面活性剂配伍性良好。在硬水中有较好的发泡能力,与同类产品（咪唑啉）相比,刺激性更小,特别适用于婴儿洗浴等产品配方中。     

New amphoteric surfactants containing a 2-hydroxyalkyl group VIII. Synthesis and surface activities for amphoteric oligomeric or polymeric surfactants of β-alanine type

A series of amphoteric oligomeric and polymeric surfactants of poly(iminoethylene) (PIE) containing both a 2-hydroxyalkyl group (C₁₂-HA or C₁₄-HA) and a 2-carboxyethyl (CE) group as N-substituents was studied as follows: PIE having 1,000 or 20,000 molecular weight was treated with 1,2-epoxydodecane or 1,2-epoxytetradecane and subsequently methyl acrylate. The adducts were saponified to obtain amphoteric oligomeric surfactants (AO) or amphoteric polymeric surfactants (AP), poly{[N-(2-carboxyethyl)-N′-(2-hydroxyalkyl)]iminoethylene}. Various adducts of which the ratios of CE/HA for one unit of iminoethylene group are 2, 3.5, 8, 17 and 89 were synthesized. Surface activities such as surface tension, solubilization of orange OT, and foaming power, and physicochemical properties such as turbidity, isoelectric point, and the dissociation constant, were studied. Particular attention was paid to the dependence of solubilization, viscosity and turbidity on pH value.     

新型双子两性表面活性剂的合成及性能

以十二烷基叔胺、环氧氯丙烷和氧氯化磷为原料合成了一种新型双子两性磷酸酯表面活性剂。在三亚甲基中引入PO43-作为柔性基团来提高联接基团的亲水性。通过红外光谱对合成的表面活性剂进行了结构表征。测试了该表面活性剂的水溶液最低表面张力为31.9 mN/m、临界胶束浓度为1.4×10-4mol/L、等电点为pH 8.5~10.5,c20=1.41×10-5mol/L。考察了其发泡性、乳化性等,通过摄像显微镜对乳化效果进行了观察。     

甜菜碱型硅表面活性剂的合成和应用

简要介绍了甜菜碱型硅表面活性剂的结构类型和性质,提出了甜菜碱型硅表面活性剂合成有硅氢化和季铵化两种方法,详细阐述了羧基型、磺基型和磷酸酯型甜菜碱有机硅表面活性剂的合成方法,最后讨论了这类两性表面活性剂在日用化学、纺织、制革等行业中的应用。     

阴离子和两性表面活性剂的相互作用

一、前言 个人护理品配方里的原料混合时发生的相互作用,要比每种原料的性质的总和还要多.其中有些相互作用还能形成自络合物,这些络合物对配方的功能特性有增强或减弱的作用.     

Chemistry of amphoteric surfactants

Amphoteric surfactants play an important role for the formulation of cosmetical shampoos. In recent years they find also increasing interest as for the development of dishwashing agents or household cleaners. The following article intends to demonstrate as simply as possible the chemical background of the mainly used substance types. Also technological properties as well as ecological and toxicological properties will be described in a general form. Numerous references are cited for special information like manufacturing conditions or numerical quotation of evaluation results.