Abstract: In this paper, biferrocene 2, 2-di (ethylferrocene) propane-organic silicon was prepared as follows: 4-chlorobutyryl chloride was grafted on one end of 2, 2-di(ethylferrocene) propane by Friedel-Crafts acylation, which was reduced and coupled with dimethylchlorosilane. The product was further reacted with hydroxyl-terminated polybutadiene (HTPB) in the presence of platinum catalyst (silica-supported chitosan complex of chloroplatinic acid SiO2-CS-Pt). The structure of the product was characterized by 1H-NMR, FTIR, and TG. The grafting rate and hydroxyl value were also measured. It showed that with an iron content of 8.24 %, the initial and final thermal decomposition temperature of the product were lowered, and its thermal sensitivity and excellent catalytic performance for ammonium perchlorate were increased.

Key words: Biferrocene, hydroxyl-terminated polybutadiene, Organic silicon, Friedel-Crafts acylation, Grafting