Study on the Reaction Rate of Polysilane Formation by Electroreduction
Polysilanes were synthesized by electroreduction of different monomers such as CH3HSiCl2,PhSiCl3,CH3SiCl3 and (CH3)2SiCl2 with Mg electrodes under ultrasonic radiation.The effects of monomers and additives on the reaction rate were investigated.Polymerization of PhSiCl3 among the four monomers showed the highest rate.Without additive,the percent of Si-Cl bonds remaining for CH3HSiCl2 were 29.5% when electricity reached 15.5% of theoretic value.However, the percent of Si-Cl were 17.5%~29% when electricity arrived at 10% of theory value with additives.Different efficiency of the additives(p-dibromobenzene(DBB),naphthalene(NAPH)and anthracene(ANTH))was also observed in the polymerization reaction.P-dibromobenzene was proved the most effective additive.Based oil the observations,possible mechanisms of the polymerization were proposed.
electrosynthesis reaction rate polysilane monomers additives
ZHANG Fengjun CHEN Mingliang OH Wonchun
Department of Advanced Materials & Science Engineering,Hanseo University,Chungnam 356-706,Korea;Anhu Department of Advanced Materials & Science Engineering,Hanseo University,Chungnam 356-706,Korea
国际会议
合肥
英文
428-431
2008-06-05(万方平台首次上网日期,不代表论文的发表时间)