HUA Yong-Sheng, CHEN Lai, LI Xian-Fu, GAO Meng-Jiao, REN Mu-Su, SUN Jin-Liang. ELECTROCHEMICAL SYNTHESIS AND CHARACTERIZATION OF POLYSILANE WITH ZIRCONIUM. [J]. Acta Polymerica Sinica (6):596-601(2011)
DOI:
HUA Yong-Sheng, CHEN Lai, LI Xian-Fu, GAO Meng-Jiao, REN Mu-Su, SUN Jin-Liang. ELECTROCHEMICAL SYNTHESIS AND CHARACTERIZATION OF POLYSILANE WITH ZIRCONIUM. [J]. Acta Polymerica Sinica (6):596-601(2011) DOI: 10.3724/SP.J.1105.2011.10136.
ELECTROCHEMICAL SYNTHESIS AND CHARACTERIZATION OF POLYSILANE WITH ZIRCONIUM
A polysilane with zirconium was synthesized by electrochemical method
using methyltrichlorosilane
allylchloride
Cyclopentadiene and Zirconium tetrachloride as monomers.The product was characterized by FTIR
UV
NMR and XRD.Its double-bond
elements content
molecular weight and molecular weight distribution were determined.The cross-linking and pyrolysis of it were studied.The results show that the product yield is 71.2%
the retaining ratio of double bonds is 10.8%
the Zr content is 4.11% and Molecular weight and molecular weight distribution are 3746 and 3.24. It can dissolve in toluene
THF
chloroform and other common organic solvents
and has excellent film-forming properties.The introduction of cyclopentadienyl and allyl makes its maximum absorption wavelength widen and have a high degree of red shift.Cyclopentadienyl and Zr form big bond in the electrosynthesis process
leading to support the formation of cross-linking system.Double bonds can play the role of self-crosslinking
eliminating the need for the use of cross-linking agent.The introduction of double bond and Zr in polysilane brings forth much higher mass retaining ratio and better ceramic yield.It can be used as ceramic precursor
pyrolysis products are mainly SiC and ZrC.In addition
there are excess Si and SiO2. It provides a new way for the synthesis of polysilanes with unsaturated functional groups and heterogeneous elements.