Author(s)

Jun-Ichi Suzuki^1,2, Yutaro Takegahara¹, Yuri Oikawa¹, Yuta Aomi¹, Hideo Sawada^1*

¹Department of Frontier Materials Chemistry, Graduate School of Science and Technology, Hirosaki University, Hirosaki, Japan.
²Kankyo Kogaku, Hirosaki, Japan.

Fluoroalkyl end-capped vinyltrimethoxysilane oligomer
[R_F-(CH₂CHSi(OMe)₃)_n-R_F; R_F = CF(CF₃)OCF₇, n = 2, 3; R_F-(VM)_n-R_F] was applied to the preparation of fluoroalkyl end-capped vinyltrimethoxysilane oligomer/α-, β-, γ-cyclodextrin polymers (α-, β-, γ-CDPs) composites [R_F-(VM-SiO₂)_n-R_F/α-, β-, γ-CDPs] by the sol-gel reaction of the corresponding oligomer in the presence of the α-, β-, γ-CDPs under alkaline conditions. The R_F-(VM-SiO₂)_n-R_F/α-, β-, γ-CDPs composites thus obtained were found to give a good dispersibility toward the traditional organic media except for water, and were applied to the surface modification of glass to provide a sueperoleophilic/superhydrophobic characteristic on the modified surface, although the corresponding R_F-(VM-SiO₂)_n-R_F nanocomposites can give a usual oleophobic/superhydrophobic property on the surface. These composites powders were also found to be applicable to the packing material for the column chromatography to separate the mixture of oil/water and the water in oil (W/O) emulsions. More interestingly, these composite powders were found to have a higher adsorption ability toward not only low-molecular weight aromatic compounds such as bisphenol A and bisphenol AF but also volatile organic compounds, compared to that of the pristine α-, β-, γ-CDPs.

Fluorinated Oligomeric Composite, Cyclodextrin Polymer, Surface Modification, Superoleophilic, Superhydrophobic Property, Separation of Oil and Water, Organic Molecule, VOC, Adsorption Ability

Suzuki, J. , Takegahara, Y. , Oikawa, Y. , Aomi, Y. and Sawada, H. (2018) Preparation of Fluoroalkyl End-Capped Oligomer/Cyclodextrin Polymer Composites: Development of Fluorinated Composite Material Having a Higher Adsorption Ability toward Organic Molecules. Journal of Encapsulation and Adsorption Sciences, 8, 117-138. doi: 10.4236/jeas.2018.82006.