双环戊二烯-马来酸酐共聚物的合成、表征及其与聚氨酯反应性共混研究  

REACTIVELY-BLENDING OF DICYCLOPENTADIENE-MALEIC ANHYDRIDE COPOLYMER WITH POLYURETHANE

作　　者：吴宇雄[1] 周尽花[1] 谢建军[1] 赵仁杰[1] 

机构地区：[1]中南林业科技大学材料科学与工程学院,湖南长沙410004

出　　处：《精细石油化工》2008年第3期66-69,共4页Speciality Petrochemicals

基　　金：湖南省教育厅基金资助项目(06C879)

摘　　要：合成了双环戊二烯-马来酸酐交替共聚物(DCPD-co-MA),产率约25%。采用红外、核磁共振氢谱和碳谱对共聚物进行了表征,差热分析和热重分析表明该共聚物具有较好的热性能,其T_g为210℃,起始热失重温度为310℃。采用反应性共混方法合成了DCPD-co-MA与聚氨酯(PU)的共混物(PU/DCPD-co MA),反应温度为80℃。该共混物具有较好的综合性能,其起始热失重温度较纯PU提高了约41℃,共混后,其耐热性能有较大改善。Dicyclopentadiene-maleic anhydride copolymer （DCPD-co-MA） was synthesized with the yield of 25% and characterized by IR, 1H NMR and laC NMR. DTA and TG curves of DCPD-co-MA showed that DCPD-co-MA had good thermal properties with Tg = 210 ℃ and initial weight loss temperature 310 ℃. DCPD-co-MA was in-situ reactively-blended with polyurethane to give PU/DCPD-co- MA blends at 80 ℃. After being blended, the initial weight loss increased by about 41 ℃. The product had good comprehensive properties with good thermal stability.

关 键 词：聚氨酯 双环戊二烯 马来酸酐 共聚 反应性共混 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]