Micellization and Adsorption Behaviors of New Reactive Polymerizable Surfactants Based on Modified Nonyl Phenol Ethoxylates
作者:Ayman M. Atta、Amro K. F. Dyab、Hamad A. Al-Lohedan
DOI:10.1007/s11743-012-1413-5
日期:2013.5
surfactants based on alkyl phenol ethoxylate backbone and carboxylic or anhydride chain ends were investigated. Surface activities of these polymerizable surfactants were investigated to correlate their structure and their performances. The new bifunctional surfmers were prepared by reacting polyoxyethylene 4‐nonyl‐2‐propylene‐phenol nonionic reactive surfactants with maleic anhydride. The chemical structure
研究了基于烷基酚乙氧基化骨架和羧基或酸酐链端的一系列可聚合表面活性剂的合成与表征。研究了这些可聚合表面活性剂的表面活性,以关联其结构与性能。新型双功能表面活性剂是通过使聚氧乙烯4-壬基-2-丙烯-苯酚非离子型反应性表面活性剂与马来酸酐反应制得的。制备的表面活性剂的化学结构由13 C和1 C表征1 H NMR分析。通过吸附等温线测量来测量改性的可聚合表面活性剂的表面活性,该吸附等温线是根据在不同温度下水性介质中表面活性剂的浓度与表面张力之间的关系确定的。确定了水溶性表面活性剂的临界胶束浓度(CMC)值。发现在聚氧乙烯4-壬基-2-丙烯-苯酚非离子表面活性剂的化学结构中,随着酸酐和酸基的结合,CMC降低。表面活性的参数,如在界面处(每分子的面积甲分钟),表面过量浓度(Γ最大)和表面张力降低的有效性(π CMC由改性表面活性剂的吸附等温线测得。计算并讨论了一些吸附过程的热力学数据。数据表明,新的