以氨基醇为添加剂的形啉表面活性剂的聚集:近距离观察

IF 2.7 4区材料科学 Q3 CHEMISTRY, PHYSICAL

Surface Innovations Pub Date : 2022-04-11 DOI:10.1680/jsuin.22.00006

R. Pavlov, F. Valeeva, G. Gaynanova, D. Kuznetsov, L. Zakharova

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引用次数: 2

摘要

研究了单、二、三乙醇胺与甲基硫磷和羟乙基硫磷表面活性剂的聚合和增溶性能。描述了表面活性剂-乙醇胺混合体系的协同增溶行为。乙醇胺强烈影响pH值，导致橙OT酚基去质子化，随后增加水/胶束溶解度。形态学表面活性剂胶束降低了橙OT酚基的pKa，使其在介质碱化的早期去质子化。得到的表面活性剂-乙醇胺混合物可以溶解大量的疏水性染料，然后通过酸化引发沉淀。

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Aggregation of morpholinium surfactants with amino alcohols as additives: a close look

Mono-, di-, triethanolamine in a combination with methylmorpholinium and hydroxyethylmorpholinium surfactants were investigated for their aggregation and solubilizing properties. A cooperative behavior of the solubilization by mixed surfactant – ethanolamine systems is described. Ethanolamines strongly affect pH and lead to Orange OT phenolic group deprotonation and subsequent increase in aqueous/micellar solubility. The morpholinium surfactant micelles reduce pKa of Orange OT phenolic group, enabling its deprotonation at the earlier stages of media alkalinization. Obtained surfactant – ethanolamine mixtures can solubilize very large amounts of hydrophobic dye, which can then be triggered to precipitate via acidification.

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来源期刊

Surface Innovations CHEMISTRY, PHYSICALMATERIALS SCIENCE, COAT-MATERIALS SCIENCE, COATINGS & FILMS

CiteScore

5.80

自引率

22.90%

发文量

期刊介绍： The material innovations on surfaces, combined with understanding and manipulation of physics and chemistry of functional surfaces and coatings, have exploded in the past decade at an incredibly rapid pace. Superhydrophobicity, superhydrophlicity, self-cleaning, self-healing, anti-fouling, anti-bacterial, etc., have become important fundamental topics of surface science research community driven by curiosity of physics, chemistry, and biology of interaction phenomenon at surfaces and their enormous potential in practical applications. Materials having controlled-functionality surfaces and coatings are important to the manufacturing of new products for environmental control, liquid manipulation, nanotechnological advances, biomedical engineering, pharmacy, biotechnology, and many others, and are part of the most promising technological innovations of the twenty-first century.