关键词: 液态超支化聚碳硅烷, 陶瓷先驱体, 合成, 应用, 液态超支化聚碳硅烷, 陶瓷前体, 碳化硅, 合成

Abstract: As a polymer precursor of SiC ceramics，liquid hyperbranched polycarbosilane has drawn a great attention for its excellent fluidity，self-cross-linking，high ceramic yield and near-stoichiometric pyrolysis product. According to the characteristics of liquid hyperbranched polycarbosilane，the preparation methods are reviewed，including the ring-opening polymerization，Grignard coupling method，Wurtz coupling method and hydrosilysition reaction. In addition，the research progress of its application in silicon carbide based ceramic composites，silicon carbide fiber and silicon carbide membrane is summarized. Finally，the prospect of further research，large-scale synthesis and modification of liquid hyperbranched polycarbosilane，is also addressed.

Key words: liquid hyperbranched polycarbosilane, ceramic precursor, synthesis, application, liquid hyperbranched polycarbosilane, ceramic precursor, silicon carbide, synthesis