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Title: Surface functionalization of silicon substrates via graft polymerization
Keywords: Surface Functionalization, Polymer Brushes, Silicon, ATRP, RAFT, Adhesion
Issue Date: 28-Oct-2004
Source: YU WEIHONG (2004-10-28). Surface functionalization of silicon substrates via graft polymerization. ScholarBank@NUS Repository.
Abstract: Surface graft polymerization has been employed for functionalization of silicon substrate. The technique makes possible molecular design of surface properties of silicon for specific applications. Graft polymerization was successfully carried out via surface-initiated living radical polymerization (atom transfer radical polymerization (ATRP) and reversible addition-fragmentation chain transfer (RAFT) polymerization) on the hydrogen-terminated silicon surface. The well-defined functional polymer chains covalently tethered to the silicon atoms has imparted new functionalities directly onto the inorganic single crystal surfaces. Surface modification via plasma graft polymerization and UV-induced graft copolymerization were also carried on the oxide-covered and SiLK-coated silicon substrates, respectively. The grafted functional polymer chains on the silicon surface were used as chemisorption sites for the palladium complex during the Sn-free activation process, which simplifies the electroless plating process. The graft-modified surfaces exhibit enhanced adhesion with electrolessly deposited metals.
Appears in Collections:Ph.D Theses (Open)

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