Preparation of Hydrophobic Monolithic Supermacroporous Cryogel Particles for the Separation of Stabilized Oil-in-Water Emulsion

被引:7
|
作者
Takase, Hayato [1 ]
Watanabe, Nozomi [1 ]
Shiomori, Koichiro [2 ]
Okamoto, Yukihiro [1 ]
Ciptawati, Endang [1 ,3 ]
Matsune, Hideki [2 ]
Umakoshi, Hiroshi [1 ]
机构
[1] Osaka Univ, Grad Sch Engn Sci, Div Chem Engn, 1-3 Machikaneyama Cho, Toyonaka 5608531, Japan
[2] Univ Miyazaki, Dept Appl Chem, 1-1 Gakuenkibanadai Nishi, Miyazaki 8992192, Japan
[3] Univ Negeri Malang, Fac Math & Nat Sci, Dept Chem, Jl Semarang 5, Malang 65145, Indonesia
基金
日本学术振兴会;
关键词
hydrophobic cryogel particles; supermacropores; inverse Leidenfrost effect; droplet method; separation of emulsion; POLYMERIZATION;
D O I
10.3390/colloids7010009
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Here, we prepared hydrophobic cryogel particles with monolithic supermacropores based on poly-trimethylolpropane trimethacrylate (pTrim) by combining the inverse Leidenfrost effect and cryo-polymerization technique. The hydrophobic cryogel particles prepared by adopting this method demonstrated the separation of the stabilized O/W emulsion with surfactant. The prepared cryogel particles were characterized in terms of macroscopic shape and porous structure. It was found that the cryogel particles had a narrow size distribution and a monolithic supermacroporous structure. The hydrophobicity of the cryogel particles was confirmed by placing aqueous and organic droplets on the particles. Where the organic droplet was immediately adsorbed into the particles, the aqueous droplet remained on the surface of the particle due to repelling force. In addition, after it adsorbed the organic droplet the particle was observed, and the organic solvent was diffused into the entire particle. It was indicated that monolithic pores were distributed from the surface to the interior. Regarding the application of the hydrophobic cryogel particles, we demonstrated the separation of a stabilized oil-in-water emulsion, resulting in the successful removal of the organic solvent from the emulsion.
引用
收藏
页数:10
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