Abstract
A typical linear polysilane—poly(methylphenyl)silane and two branched polysilanes—poly(phenyl-dimethyl)silane and poly(phenyl-methylphenyl)silane were synthesized by Wurtz reductive coupling reaction. The ultraviolet (UV) absorption and photoluminescence (PL) properties of these three polysilanes were investigated. The results, that the absorption band of the two branched polysilanes tailing to visible region and the corresponding emission peak having obvious red shift compared to the linear one, indicate that branched polysilanes have lower energy band gap. Thermogravimetric analysis (TGA) demonstrates that branched polysilanes have better thermo-stability. This conclusion has been verified by the Ozawa treatment, which provides theoretical explanation on thermo-decomposition. Besides, the results of exposing to ultraviolet reveal that branched polysilanes have better ultraviolet-resistant stability.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
