采用表面活性剂的分光光度分析法应用日趋广泛。这方面的研究工作虽极活跃,但较多工作限于已有经典表面活性剂的研究与应用,为分析化学的特定需要设计与合成新型表面活性剂的研究尚少。作者曾用环氧氯丙烷和长链烷基叔胺合成了以聚乙二醇为主链含有若干个带长链烷基的季氮支链的低聚合表面活性剂——聚(氧化丙烯)-α-十八烷基二甲基氯化铵(PPOSA)。实验表明,这类表面活性剂兼有阳离子和非离子表面活性剂的某些特性。本文 The use of surfactant spectrophotometry is widely used. Although the research work in this field is very active, more work is limited to the research and application of the existing classical surfactants. There are few studies on the design and synthesis of new surfactants for the specific needs of analytical chemistry. The author has used epichlorohydrin and long-chain alkyl tertiary amine synthesized polyethylene glycol as the main chain contains a number of long chain alkyl quaternary nitrogen branched chain oligomerization surfactant - poly (propylene oxide) -α-octadecyldimethylammonium chloride (PPOSA). Experiments have shown that these surfactants combine certain properties of cationic and nonionic surfactants. This article