The work in this paper included:
1. New kind of benzoxazine was synthesized by choosing appropriate raw material.Novel benzoxazine(PT-ala resin) was synthesized by using phenolphthalein, allylamineand paraformaldehyde in the molar ratio of1:2:4. The curing behavior of PT-ala wasstudied by DSC and the chemical structure of PT-ala was characterized byFT-IR,1H-NMR. The thermal properties of PT-ala was studied by methods of Kissinger,Ozawa and Coats-Redfern: The thermal cure of the allyl group started at214...