Poly (phenylmethylsilane) obtained by electrochemical reduction in a divided cell containing a polymeric membrane
作者： Roman Dabek , Jorge Cervantes , Arturo Zizumbo
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摘要: The electrochemical synthesis of poly(phenylmethylsilane) was carried out in a divided cell using polymeric anion-exchange membrane. solution contained phenylmethydichlorosilane (PhMeSiCl 2 ), mixed solvent tetrahydrofuran + hexamethylphosphoramide, with tetrabutylammonium perchlorate as support electrolyte. electrodes were stainless steel the cathode, sacrificial anode or platinum resistant anode. Poly(phenylmethylsilane) obtained yields from 1.5 to 4.5 % phenylmethyldichlorosilane concentrations equal higher than 1 M. number-average molecular mass M n range 5600 9500. A monomodal weight distribution polydipersity Index 2. spectra H, 13 C, 29 Si NMR and IR determined. From analysis, showed clear difference tacticity related chemical same polymer. UV strong absorption 331 335 nm characteristic for poly(phenylmethylsilane).
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