Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5202939 | Polymer Degradation and Stability | 2012 | 8 Pages |
Abstract
A new energetic polymer, polyvinyl acetate azide (PVAA), was synthesized via a two-step process involving initial chloroacetylation and subsequent azidation of poly(vinyl alcohol) and was characterized by elemental analysis, UV-Vis, ATR-FTIR, 1H and 13C NMR techniques. The glass-transition temperature of PVAA was evaluated by DSC method and the thermal stability of PVAA was tested by DTA and TGA methods. The results indicate that PVAA shows single glass-transition temperature at 24.60 °C and exhibits good resistance to thermal decomposition up to 200 °C. Moreover, the sensitivity properties of PVAA were measured with the national military standard methods and the compatibilities of PVAA with the energetic components of TNT-based melt cast explosives were studied by using the non-isothermal DSC method. The results indicate that PVAA is an insensitive energetic polymer and can be safely used in melt cast explosives.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Bo Jin, Juan Shen, Rufang Peng, Yuanjie Shu, Bisheng Tan, Shijin Chu, Haishan Dong,