Synthesis and Thermal Properties of a Boron-Containing Bisphenol-S Formaldehyde Resin
Boron-containing bisphenol-S formaldehyde resin (BBPSFR) was synthesized by formalin method. The structure and thermal properties of BBPSFR were characterized by 1H NMR, FTIR, torsional braid analysis (TBA) and thermogravimetric analysis (TGA), respectively. The results showed that the borate had formed, and the six-member ring containing boron-oxygen coordinate structure also formed during the curing process. The glass transition temperature (Tg) of BBPSFR is higher 104°C than that of bisphenol-S formaldehyde resins (BPSFR); the initial degradation temperature (Ti ) increases about 43°C; thermal degradation rate decrease and thermal stability increase significantly.
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
J. G. Gao et al., "Synthesis and Thermal Properties of a Boron-Containing Bisphenol-S Formaldehyde Resin", Advanced Materials Research, Vols. 239-242, pp. 2905-2908, 2011