Spontaneous Formation of Vesicles by N-Alkyl-N-Methylmorpholinium Bromide and Sodium Dodecyl Sulfate (SDS)

2018 International Conference on Civil, Architecture and Disaster Prevention

土木建筑工程

Cheng, Rui^1 ; Zhou, Hongda^1 ; Dai, Caili^1 ; Liu, Yifei^1 ; Zhao, Mingwei^1

School of Petroleum Engineering, State Key Laboratory of Heavy Oil, China University of Petroleum (East China), Qingdao, SHANDONG

266580, China^1

关键词: Electrical conductivity measurements;    Hydrophobic interactions;    Mixed surfactant;    Potential values;    Rheological property;    Rheological test;    Spontaneous formation;    Visual observations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/218/1/012105/pdf
DOI  :  10.1088/1755-1315/218/1/012105

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The formation of vesicles, composed of N-Alkyl-N-methylmorpholinium bromide ([Mor1,12]Br) and sodium dodecyl sulfate (SDS), is investigated. The phase diagram of the mixed surfactant aqueous solutions is determined through visual observation and electrical conductivity measurements. The formation of vesicles is confirmed in the lamellar phase (Lα) through Cryo-TEM. The irregular shape of vesicles is observed successfully in micrographs. Moreover, the rheological properties, size distribution and zeta potential in different mole ratio are studied. The behavior of the vesicle solution matches Bingham fluid in rheological tests. With the mole ratio r increases, the average size increases while the zeta-potential value decreases. Electrostatic and hydrophobic interactions are regarded as the main driving forces for the formation of vesicles.