title: Fabrication of superhydrophilic poly(styrene-alt-maleic anhydride)/silica hybrid surfaces on poly(vinylidene fluoride) membranes.
abstract: Superhydrophilic organic/inorganic hybrid surfaces have been fabricated on blend membranes of poly(vinylidene fluoride) (PVDF) and poly(styrene-alt-maleic anhydride) (SMA). The blend membranes were prepared from PVDF/SMA mixed solution with N,N-dimethylacetamide (DMAc) as solvent by immersion-precipitation phase inversion process. The gained blend membranes were immersed into γ-aminopropyltriethoxysilane (APTS) solution to generate SMA/silica hybrid surfaces by the reaction between anhydrides and APTS. The hybrid surfaces chemical compositions, morphologies and hydrophilicity were investigated in detail. It demonstrates that the hybrid surfaces possess micro-nano hierarchical structure and display superhydrophilicity property and good stability. Finally, the reaction and formation mechanism of the superhydrophilicity hybrid surface was discussed.
authors.affiliation: MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, PR China.
authors.forename: Jian-Hua
authors.initials: JH
authors.lastname: Wang
authors.forename: Li-Ping
authors.initials: LP
authors.lastname: Zhu
authors.forename: Bao-Ku
authors.initials: BK
authors.lastname: Zhu
authors.forename: You-Yi
authors.initials: YY
authors.lastname: Xu
mesh_terms: D057927:Hydrophobic and Hydrophilic Interactions; D008298:Maleates / Q000737:chemistry*; D008567:Membranes, Artificial; D010316:Particle Size; D011137:Polystyrenes / Q000737:chemistry*; D011145:Polyvinyls / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D013499:Surface Properties; D005465:Fluorocarbon Polymers
chemical_list: D008298:Maleates; D008567:Membranes, Artificial; D011137:Polystyrenes; D011145:Polyvinyls; D012822:Silicon Dioxide; C520889:poly(styrene-alt-maleic anhydride); C024865:polyvinylidene fluoride; D005465:Fluorocarbon Polymers