A Fluorescence Study on Surface Properties of Cationic Gemini Surfactant with Some Special Alcohols

Q4 Biochemistry, Genetics and Molecular Biology Borneo Journal of Resource Science and Technology Pub Date : 2020-12-31 DOI:10.33736/bjrst.2736.2020

Riyaj Mohammad

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引用次数: 2

Abstract

Alcohols are very important additives and played a measure role as co-surfactants in various industrial and research applications. While, Gemini surfactants are mainly used as effective emulsifiers, antifoaming agents, bactericidal agents, coating agents and corrosion inhibitors etc. Therefore, it is important to study about the variations in alkanol concentrations which affects the aggregation number and other related parameters. Surface properties of gemini surfactant butanediyl-1,4-bis(dimethyldodecylammonium bromide) (12-4-12) has been studied by using fluorescence method. This method has been used to calculate the aggregation number (Nagg) and the other related parameters like dielectric constant (D), Stern Volmer binding constant (KSV) of mixed system. This method is also very important for the calculation of the micropolarity of the mixed system (gemini/alcohol). The micropolarity has been obtained with the help of the ratio of intensity of peaks (I1/I3) of the pyrene fluorescence emission spectrum. Cetylpridinium chloride and pyrene were used as quencher and probe, respectively. Keywords: Gemini surfactant, special alcohols, aggregation number, micropolarity

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阳离子Gemini表面活性剂与某些特殊醇表面性质的荧光研究

醇是非常重要的添加剂，在各种工业和研究应用中作为助表面活性剂发挥着重要作用。而Gemini表面活性剂主要用作有效乳化剂、消泡剂、杀菌剂、涂层剂和缓蚀剂等。因此，研究链烷醇浓度的变化对聚集数和其他相关参数的影响具有重要意义。用荧光法研究了双子表面活性剂丁二酰-1,4-双（二甲基十二烷基溴化铵）（12-4-12）的表面性质。该方法已用于计算混合体系的聚集数（Nagg）和介电常数（D）、Stern-Volmer结合常数（KSV）等相关参数。该方法对于计算混合体系（双子醇）的微极化率也非常重要。借助芘荧光发射光谱的峰强度比（I1/I3）获得了微极化率。分别用氯化十六烷基吡啶和芘作为猝灭剂和探针。关键词：Gemini表面活性剂，特种醇，聚集数，微极化

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