Synthesis and characterization of N-methylpolyborosilazane as a precursor of Si-B-N ceramic fibers

摘要：

N-methylpolyborosilazane (PBS-Me) may act as a preceramic precursor to obtain high-performance Si/B/N ceramic fibers which exhibit superior thermo-physical and chemical properties. In this paper, we synthesized the polymeric precursor PBS-Me from the single-source precursor Cl3Si-NH-BCl2 (TADB). This molecular contains Si-N-B bridge and is fully functionalized by chlorine, which allows for rapid polymerization by aminolysis with subsequent polycondensation. The reaction yielded a yellow glass-like residue with a softening point of about 135 ℃. The as-obtained polymer was characterized by means of FTIR, NMR and TG and it contained the Si-N-B bond structure required for the synthesis of a multi-component ceramic fiber.

作者: ZHAO Xi LI Shutong HAN Keqing ZHANG Hui YUAN Jia PENG Yuqing YU Muhuo

作者单位: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University, S State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University,

会议类型: 国际会议

会议名称: 2009 International Conference on Advanced Fibers and Polymer Materials(2009年先进纤维与聚合物材料国际学术会议)

会议地点: 上海

会议语种:英文

页码: 401-403

在线出版日期: 2009-10-21（万方平台首次上网日期，不代表论文的发表时间）