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Bo Jin,Juan Shen,Rufang Peng,Yuanjie Shu,Shijin Chu,Haishan Dong 한국고분자학회 2014 Macromolecular Research Vol.22 No.2
A new energetic polymer, poly(vinyl 2,4,6-trinitrophenylacetal)-co-poly(vinyl acetate azide) (PVTNP-co-PVAA), was synthesized by a two-step process involving initial chloroacetylation and subsequent azidation of poly(vinyl2,4,6-trinitrophenylaceta). The synthesized polymers were characterized by elemental analysis, UV-Vis, ATR-FTIR, and1H NMR techniques. The glass-transition temperature of PVTNP-co-PVAA was evaluated by differential scanningcalorimetry (DSC), and the thermal stability of PVTNP-co-PVAA was tested by differential thermal analysis (DTA)and thermogravimetric analysis (TGA). DSC traces showed that PVTNP-co-PVAA had two glass-transition temperaturesat -27.53 and 67.05 ℃, respectively. DTA and TGA curves showed that the thermo-oxidative degradation ofPVTNP-co-PVAA in air was a two-step reaction, and the percentage of degraded PVTNP-co-PVAA reached nearly100% at 600 oC.