Adsorption behavior and conformational changes of acrylpimaric acid polyglycol esters at the air-water interface
Adsorption behavior and conformational changes of acrylpimaric acid polyglycol esters at the air-water interface
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丙烯海松酸聚乙二醇酯在空气-水界面的吸附行为及构象变化
DOI：
10.1016/j.polymer.2017.11.010
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发表时间：
2017-12
期刊：
影响因子：
4.6
通讯作者：
Qin Huang
中科院分区：
文献类型：
--
作者：
Juying Zhou;Xia Zhang;Yanjiao Lan;Yanzhi Zhao;Fuhou Lei;Hao Li;Pengfei Li;Haitang Xu;Qin Huang
合成了三种不同相对分子质量的丙烯海松酸聚乙二醇酯(APAPG)。用表面张力和荧光技术研究了三种酯的表面性质。测定临界胶束浓度(CMC)。提出了重取向理论来描述这些表面活性剂分子在空气-水界面的吸附行为和构象变化。随着酯浓度的增加，溶剂的摩尔分数减小，表面活性剂分子的摩尔分数增加。随着П的生长，态1的吸附量呈单峰型，态2的吸附量呈S型。表面活性物质的吸附自由能比胶束化自由能大得多，因此表面活性剂分子首先吸附在表面，饱和吸附后形成胶束。
Three acrylpimaric acid polyglycol esters (APAPG) with different molecular weight were successfully prepared. The surface properties of three esters were investigated by surface tension and fluorescence techniques. The critical micelle concentrations (CMC) were detected. Reorientation theory was proposed to describe the adsorption behavior and the conformational changes of these surfactant molecules at the air-water interface. With increasing ester concentration the molar fraction of solvent decreased and that of surfactant molecules increased. The adsorption amount of state 1 presented unimodal shape and adsorption amount of state 2 presented sigmoid with the growth ofП. The free energy of adsorption is more negative than that of micellization, thus the surfactant molecules adsorb on the surface firstly and then form micelles after saturation adsorption.
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影响因子：
3.3
作者：
Makievski, AV;Fainerman, VB;Miller, R
通讯作者：
Miller, R
DOI：
10.1021/j100449a024
发表时间：
1980-06
期刊：
The Journal of Physical Chemistry
影响因子：
--
作者：
M. Persson;P. Stenius;G. Stroem;L. Oedberg;I. Bolmgren;H. Ljusberg-Wahren;T. Norin
通讯作者：
M. Persson;P. Stenius;G. Stroem;L. Oedberg;I. Bolmgren;H. Ljusberg-Wahren;T. Norin
影响因子：
--
作者：
Fainerman, VB;Miller, R;Makievski, AV
通讯作者：
Makievski, AV
影响因子：
4.6
作者：
Bose, Avijit;Jana, Somdeb;Mandal, Tarun K.
通讯作者：
Mandal, Tarun K.
影响因子：
2.2
作者：
Naveen Kumar;R. Tyagi
通讯作者：
Naveen Kumar;R. Tyagi