酰胺咪唑啉硫酸二甲酯织物柔软剂的合成

采用硬脂酯、二乙烯三胺及硫酸二甲酯合成了阳离子咪唑啉柔软剂，介绍了其合成路线和制备工艺，该产品较双烷基二甲基氯化铵柔软剂有更好的手感和润湿性。     

用水解鸭油研制纸张柔软剂

用鸭油为原料,净化水解后合成双烷基酰胺咪唑啉季铵盐柔软剂。实验室及工厂试验结果说明该柔软剂性能优良,很适合草类浆抄造中高档卫生纸。重点介绍了鸭油的水解工艺条件,并对该柔软剂的作用机理作了探讨。     

一种咪唑啉季胺盐型纸张柔软剂的合成与应用

纸张柔软剂是一种新型的造纸助剂,已逐渐在造纸工业上得到应用.本文介绍了一种对纸张既具有酰胺类柔软剂性能,又具有季胺盐类柔软剂特性的纸张柔软剂的合成与应用.应用结果表明,咪唑啉季胺盐型纸张柔软剂能明显地提高纸张的柔软性能,同时能使成纸的起皱较好,脱缸容易,并且有效地克服纸页的掉粉掉毛现象,使纸页的孔洞减少,纹理整齐.     

新型咪唑啉柔软剂的制备及其应用

对１－氨乙基－２－十七烷基咪唑啉进行改性,合成间接型咪唑啉阳离子表面活性剂（ＭＡ）,以此为主体组分复配柔软剂,可与各种助剂同浴使用,其柔软效果优于ＨＲＱ及ＩＳ类柔软剂,并且具有较好的抗静电性。     

季铵类柔软剂的应用性能探讨

织物柔软整理中化学柔软仍占主导地位。本文对季铵类柔软剂的应用性能作了分析和讨论,对二烷基二甲基季铵盐、双酰胺基烷氧基季铵盐、咪唑啉季铵盐的化学结构与性能、吸附行为以及柔软效果等分别作了介绍,认为二烷基二甲基季铵盐类柔软剂能赋予织物最佳的柔软性,并对它在纺织品上的应用情况作了进一步的介绍。     

咪唑啉季铵盐乳液型纸张柔软剂在卫生纸中的应用

本文研究制备了一种新的咪唑啉季铵盐乳液型纸张柔软剂,研究了不同阳离子度、表面活性剂对乳液稳定性的影响。将该柔软剂在卫生纸浆料中应用,分析了不同阳离子度柔软剂和不同柔软剂用量对纸张柔软性的影响。实验认为柔软剂阳离子度为0.6,表面活性剂用量1%(对柔软剂乳液绝干质量),柔软剂用量为0.6%,能够获得最佳使用效果,这样制得的纸张具有良好的柔软性和蓬松性。     

弱阳离子软片CS的应用

介绍了叔胺型、季胺型、酰胺型、咪唑啉型4种片状柔软剂。从化料、手感、白度、纱线强力、与有机硅柔软剂复配稳定性、起泡力和亲水性等方面对比了弱阳离子软片CS与市售同类软片在棉织物上各项应用性能。结果表明,与市售同类软片比,弱阳离子软片CS具有手感好,低黄变,纱线强力损伤小,亲水性好的特点,同时,与有机硅柔软剂复配更加稳定,且低泡。     

一种新型纸张柔软剂的制备及性能

一种新型纸张柔软剂的制备及性能目前国内纸张柔软剂多是阳离子咪唑啉表面活性剂，不论从品种还是从效果来看都难以满足需要。为此我们根据有关文献进行了硅蜡两性纸张柔软剂的研究，对组分、乳化条件及和纸纤维相互作用的机理进行了研究。１实验１．１制备原料为羟基硅油...     

新型生活用纸柔软剂SCW和SCS的开发与应用

以三乙醇胺和脂肪酸合成了一种含长碳链的双脂基化合物,此化合物能有效提高纸张的柔软性能;并制备了一种咪唑啉型的表面喷涂用的柔软剂;讨论了浆内添加型柔软剂（SCW）和表面喷涂用柔软剂（SCS）的开发与应用,探讨了其作用机理,并分析了其添加量对纸张柔软性能及抗张强度的影响。     

FS—L Ⅲ型咪唑啉两性柔软剂的合成与应用

本文浅析了以植物油脂肪酸与有机硅为主要单体,在酯化、亚硫酸化、羟甲基化及乳化缩聚体系中制备FS—LⅢ型咪唑啉两性柔软剂的合成机理与在软性革上的初步应用。     

棉籽油制备咪唑啉季铵盐及其应用

以棉籽油和二乙烯三胺为原料,氯化苄为改性试剂,经酰胺化、环化和季铵化反应合成咪唑啉季铵盐(M),用IR对其结构进行表征,并用失重法评价(M)缓蚀性能。结果表明,制备缓蚀剂M在盐酸体系中对A20钢有很好缓蚀效果,缓蚀率为90.43%～94.86%;并通过正交实验确定最优合成条件为:棉籽油和二乙烯三胺用量各为0.15mol,反应时间7.5小时,二甲苯用量35ml。     

咪唑啉季铵盐合成研究进展

综述咪唑啉季铵盐的合成、性能及其工业用途,展望了咪唑啉季铵盐的应用前景。     

新型葡萄糖酰胺表面活性剂的合成

以硬脂酸和过量的二乙烯三胺(物质的量比为1:0.53)为原料合成了酰胺基烷基咪唑啉,重结晶后得纯品的产率为92.1%,并通过硼氢化钠对所得到的咪唑啉进行定向还原开环反应得到中间体胺化合物,产率为86.9%,开环产物继续与D-(+)葡萄糖酸-δ-内酯反应合成了一种新型的包含糖基部分和双疏水长链的糖基多酰胺表面活性剂,产率为80.2%。利用红外光谱(IR)及电喷雾质谱(ESI-MS)等物理方法对中间体及产物的结构进行表征。经该表面活性剂整理后的纯棉织物的悬垂系数为54.25%,而未整理织物的悬垂系数为62.25%。     

Protein-backbone-modifications: Formation of imidazolines

The formation of imidazolines within the backbone during heating of peptides and proteins was studied. In model experiments, the generation of 2-methyl-4-carboxy-imidazoline after incubation of N ^α -acetyl-β-aminoalanine was demonstrated by cation-exchange chromatography and NMR-studies. At 60 °C the highest concentrations of this imidazoline were measured at pH 9. With increasing temperature the pH-optimum of the imidazoline formation shifted to lower pH levels. The reaction of N ^α -acetyl-dehydroalanine-methylester with ammonia generated β-aminoalaninoalanine, which was identified in comparison with synthesized references by HMQC-and¹H-NMR-spectroscopy. β-Aminoalaninoalanine, a crosslink-product homologous to lysinoalanine, which reacts easily with the corresponding imidazoline. Thus, the formation of imidazolines in peptide backbones containing β-aminoalanine was shown unequivocally. Further studies were conducted with peptides, synthesized according to the 10–28 sequence of bovine β-caseine with β-aminoalanine respectively β-alanine substituted for a phosphoserine residue. After incubation, the loss of one molecule of water from the β-aminoalanine containing peptide, but not from the native peptide or the peptide containing β-alanine, was detected by HPLC and MS. As a consequence, the loss of water was explained by cyclization and the formation of an imidazoline. These investigations indicate that the formation of imidazolines—besides the formation of thiazolines—takes place during heating of peptides and proteins. Heterocyclic backbone-modifications are a form of posttranslational modifications, which may play a role during the processing of proteins and subsequent formation of unexpected compounds.     

皮革工业中常用两性表面活性剂的类型、制备方法及其作用

皮革工业中常用的两性表面活性剂主要有氨基酸型、甜菜碱型、咪唑啉型及高分子两性表面活性剂。本文着重介绍了这些两性表面活性剂的制备方法,及其作力染色助剂、加脂剂、复鞣剂等在制革中的应用。     

环烷基咪唑啉衍生物在酸性溶液中对碳钢挂片缓蚀性能的研究

针对环烷基咪唑啉衍生物,采用碳钢挂片失重法,探讨了其在HCl、H2SO4、H3PO4、HF等酸性溶液中的溶解性能和缓蚀性能。     

Performance characteristics and solution properties of surfactants in shampoos

A brief analysis is made of the main types of surfactants used in shampoos and bubble baths. The requirements of a modern shampoo are discussed as are the means by which these can be achieved by the use of a number of selected additives such as the traditional alkanolamides, and the newer amine oxides, amido amine betaines and alkyl amine betaines. In particular, such aspects as the achievement of viscosity control, foam generation, shelf life stability and safety are examined. The physical chemistry of the behaviour in solution of several selected non-ionic and amphoteric nitrogen containing surfactants is discussed and how these affect viscosity modification and foam generation. Mention is also made of the chemistry of the new highly concentrated anionic surfactants and the benefits that they give the formulator. Finally, the attributes of imidazoline derived surfactants are outlined with special reference to their mildness and foaming ability. Propriété et solubilités des tensio-actifs dans les shampooings