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7752974 
Journal Article 
Poly(fluoroalkylsilane-b-dialkylsilane)-based chemosensory material for fluoride with high sensitivity, selectivity and solubility 
Naito, M; Nakamura, M; Kawabe, T; Chung, W; Onouchi, H; Fujiki, M 
2009 
1 
Synthetic Metals
ISSN: 0379-6779 
ELSEVIER SCIENCE SA 
LAUSANNE 
159 
9-10 
784-787 
English 
WOS:000267500500008 
Poly((i-butyl-n-decylsilane)x-b-(methyl-3,3,3-trifluoropropylsilane)1-x) (PSi3) was prepared using a simultaneous block copolymerization with a conventional Wurtz-type condensation reaction. The block-like polysilane copolymer showed high selectivity and sensitivity toward fluoride ion (F-) even in the coexistence of the halide ions (Cl-, Br-, and I-), and high solubility to common organic solvents with the dielectric constants (ε′) between 1.88 (n-hexane) and 9.04 (benzotrifluoride). Such unique characteristics were derived from poly(methyl-3,3,3-trifluoropropylsilane) (PSi1) and poly(i-butyl-n-decylsilane) (PSi2) unit in the copolymer, respectively. In addition, sensitivity to F- and solubility in organic solvents were successfully optimized by adjusting the composition ratio between PSi1 and PSi2 unit. © 2009 Elsevier B.V. All rights reserved. 
Polysilane; Chemosensor; Fluorine; Block copolymer; Wurtz coupling 
International Conference on Control of Super-Hierarchical Structures and Innovative Functions of Next Generation Conjugated Polymers 
Hyogo, JAPAN