CAJ | 학술논문

以丙烯酸偕二硝基丙酯（ DNPA）和乙酸乙烯酯（ VAc）为单体，偶氮二异丁腈为引发剂，乙酸乙酯为溶剂，合成了含能粘结剂 DNPA-VAc共聚物。讨论了单体配比、引发剂用量和反应时间对共聚反应的影响。采用 FT-IR、1 H NMR、DSC、TG 等方法研究了 DNPA-VAc共聚物的结构和性能。研究结果表明，DNPA和 VAc的投料摩尔比为31，在80℃下反应8 h，获得共聚物产率为72％。DNPA-VAc共聚物的玻璃化温度是59．7℃，热分解峰温为259．1℃，放气量1．7 mL·g -1，真空安定性好，与 RDX和 HMX相容，是较稳定的聚合物。
이병희산해이초기병지（ DNPA）화을산을희지（ VAc）위단체，우담이이정정위인발제，을산을지위용제，합성료함능점결제 DNPA-VAc공취물。토론료단체배비、인발제용량화반응시간대공취반응적영향。채용 FT-IR、1 H NMR、DSC、TG 등방법연구료 DNPA-VAc공취물적결구화성능。연구결과표명，DNPA화 VAc적투료마이비위31，재80℃하반응8 h，획득공취물산솔위72％。DNPA-VAc공취물적파리화온도시59．7℃，열분해봉온위259．1℃，방기량1．7 mL·g -1，진공안정성호，여 RDX화 HMX상용，시교은정적취합물。
The 2,2-dinitropropyl acrylate-vinyl acetate(DNPA-VAc)copolymer was synthesized by the free radical polymerization in ethyl acetate using azobisiosbutyronitrile as initiator. The effects of molar ratio of monomers,initiator concentration and time on copolymerization were investigated. The structure and properties of DNPA-VAc copolymer were also characterized by FTIR, 1 H NMR,DSC and TG measurements. Results show that the copolymer is obtained with the yield of 72% under conditions of DNPA and VAc molar ratio of 3:1 at 80 ℃ within 8 hours. The glass transition temperature and thermal decomposition peak temperature of the DNPA-VAc copolymer is 59. 7 ℃ and 259. 1 ℃. It is compatible with RDX and HMX,and thermal stable.