Abstract:

As a kind of precursor polymer of SiC ceramics，polymethylsilane has been paid more and more attention due to the great amount of active Si—H bonds in the polymer backbone，which endows the polymer low temperature curing property. The synthesis techniques，including Wurtz coupling method，dehydrogenation coupling method，ultrasonic coupling method and electrochemical synthesis method，are reviewed. Besides，the modification methods of polymethylsilane，for example heated-crosslink modification and chemical modification，along with the properties of modified polymethylsilane are discussed. In addition，the research direction of polymethylsilane is also presented.