By using three broad distribution standards of polytitanocarbosilane whose number average molecular weights are determined by VPO, the calibration equation of gel permeation chromatography (GPC) of the preceramic polymer polytitanocarbosilane (PTC) which generally haslow average molecular weight and high branching degree was established as follows: ln M=20 9-0 843T.

The curing process for polycarbosilane fiber with cyclohexene vapor;

SiC fiber with a low oxygen content prepared by polycarbosilane fiber cured in 1-hexyne vapor;

Synthesis and structure characterization of phenyl-containing polycarbosilane.;

Study on the viscosity of PCS/xylene solution;

Selection of the Solvent in PCS Nanoparticle Preparation Process by Gas Antisolvent Recrystallization;

Modified SiC absorbents were obtained by pyrolyzing polycarbo silane (PCS) mixed with Ni and Co nano metal powder up to 1 000℃ and in N 2 medium, and its pyrolyzation behaviors were investigated by TG and IR analysis.

A continuous polycarbosilane(PCS) multifilament was melt spun at≈300℃.

Trilobal polycarbosilane(PCS) fibers were prepared by melt spinning PCS precursor through Y shaped spinneret.

The application of chromium(Cr) in the preparation of polycarbosilane(PCS) derived ceramics was investigated.

The investigation of adhesion mechanism of the interfaces between polytitanosiloxane gel and Al, or Fe metals;

The interface between polytitanosiloxane coating and Al or Fe base plate had been investigated with the SEM and EDAX technique.

The effects of the composition,acid_base catalysts,amount of water,temperature and the concentration of solution in the sol synthesis of GPS-TBT system on the phase change of the polytitanosiloxane sol-gel were investigated.