The influence of ionic liquid on phase separation of poly(N-isopropylacrylamide) aqueous solution

RSC Advances ◽  
2012 ◽  
Vol 2 (18) ◽  
pp. 7099 ◽  
Author(s):  
Zhangwei Wang ◽  
Peiyi Wu
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquid ◽  
Phase Separation

scholarly journals Fabrication of Multi-Layered Microspheres Based on Phase Separation for Drug Delivery

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 723
Author(s):  
He Xia ◽  
Ang Li ◽  
Jia Man ◽  
Jianyong Li ◽  
Jianfeng Li
Keyword(s):  
Aqueous Solution ◽  
Phase Separation ◽  
Gastric Fluid ◽  
Simulated Gastric Fluid ◽  
Sustained Drug Release ◽  
Simulated Intestinal Fluid ◽  
Glycol Diacrylate ◽  
Emulsion Droplets ◽  
Collection Tube ◽  
Poly Ethylene

In this work, we used a co-flow microfluidic device with an injection and a collection tube to generate droplets with different layers due to phase separation. The phase separation system consisted of poly(ethylene glycol) diacrylate 700 (PEGDA 700), PEGDA 250, and sodium alginate aqueous solution. When the mixture droplets formed in the outer phase, PEGDA 700 in the droplets would transfer into the outer aqueous solution, while PEGDA 250 still stayed in the initial droplet, breaking the miscibility equilibrium of the mixture and triggering the phase separation. As the phase separation proceeded, new cores emerged in the droplets, gradually forming the second and third layers. Emulsion droplets with different layers were polymerized under ultraviolet (UV) irradiation at different stages of phase separation to obtain microspheres. Microspheres with different layers showed various release behaviors in simulated gastric fluid (SGF) and simulated intestinal fluid (SIF). The release rate decreased with the increase in the number of layers, which showed a potential application in sustained drug release.

scholarly journals Adsorption of arsenic from aqueous solution using a zero-valent iron material modified by the ionic liquid [Hmim]SbF6

RSC Advances ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 6577-6585
Author(s):  
Fenghui Wu ◽  
Chenyang Zhao ◽  
Guangfei Qu ◽  
Zhoupeng Yan ◽  
Yingda Zeng ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquid ◽  
Zero Valent Iron ◽  
Health Impacts ◽  
Iron Material

The environmental and health impacts caused by arsenic (As) in wastewater make it necessary to carefully manage As wastes.

Spontaneous wormlike micelles formed in a single-tailed zwitterionic surface-active ionic liquid aqueous solution

Soft Matter ◽  
2017 ◽  
Vol 13 (13) ◽  
pp. 2543-2548 ◽  
Author(s):  
Panpan Sun ◽  
Fei Lu ◽  
Aoli Wu ◽  
Lijuan Shi ◽  
Liqiang Zheng
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquid ◽  
Wormlike Micelles ◽  
Surface Active Ionic Liquid ◽  
Surface Active

Synthesis and aggregation behaviour of thermo-responsive-b-poly(ionic liquid) diblock copolymers in aqueous solution

2021 ◽  
pp. 116754
Author(s):  
Yongfang Yao ◽  
Chetan Patel ◽  
Rohit L. Vekariya ◽  
Shin-ichi Yusa ◽  
Chetan B. Sangani ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquid ◽  
Diblock Copolymers ◽  
Aggregation Behaviour ◽  
Poly Ionic Liquid
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