title: Practical approach for macroporous structure embedded microfluidic system and the catalytic microchemical application.
abstract: We present a low cost and practical approach to integrate 3D ordered macroporous polyfluoropolyether (PFPE) patterns into a microchannel by a series of porous pattern fabrication processes and subsequent photolithography in a site- and shape-selective manner. The 3D ordered macroporous patterns with high-resolution edges were firstly fabricated by microtransfer molding (μ-TM) of the sacrificial polystyrene (PS) template infiltrated with PFPE as a non-adhesive and solvent-resistant skeletal material. The resulting robust PFPE porous structures with high solvent resistance on a silicon wafer can easily be embedded into the microchannel with the aid of conventional photolithography, leading to a microfluidic system with a built-in microstructure. Moreover, catalytic Pd nanoparticles implanted on the surface of the porous structure were obtained by use of Pd nanoparticle deposited PS spheres, the porous structure embedded channel was utilized to perform a Suzuki coupling reaction.
authors.affiliation: State Key Laboratory of Fine Chemicals, Dalian University of Technology, 158 Zhongshan Road, Dalian 116012, People's Republic of China.
authors.forename: Zuoyi
authors.initials: Z
authors.lastname: Xiao
authors.forename: Yun
authors.initials: Y
authors.lastname: Zhao
authors.forename: Anjie
authors.initials: A
authors.lastname: Wang
authors.forename: Jayakumar
authors.initials: J
authors.lastname: Perumal
authors.forename: Dong-Pyo
authors.initials: DP
authors.lastname: Kim
mesh_terms: D002384:Catalysis; D004867:Equipment Design; D054879:Halogenation; D008832:Microchemistry / Q000191:economics / Q000295:instrumentation*; D046210:Microfluidic Analytical Techniques / Q000191:economics / Q000295:instrumentation*; D055616:Microtechnology / Q000379:methods*; D053758:Nanoparticles / Q000737:chemistry; D010165:Palladium / Q000737:chemistry; D011137:Polystyrenes / Q000737:chemistry; D016062:Porosity
chemical_list: D011137:Polystyrenes; D010165:Palladium