材料导报
材料導報
재료도보
MATERIALS REVIEW
2010年
2期
43-46
,共4页
朱海亮%杨海君%杨军校%刘才林%谢如刚
硃海亮%楊海君%楊軍校%劉纔林%謝如剛
주해량%양해군%양군교%류재림%사여강
N-(苯并环丁烯-4-基)马来酰亚胺%Diels-Alder反应%热稳定性%聚合
N-(苯併環丁烯-4-基)馬來酰亞胺%Diels-Alder反應%熱穩定性%聚閤
N-(분병배정희-4-기)마래선아알%Diels-Alder반응%열은정성%취합
N-(benzocyclobuten-4-yl) maleimide%Diels-Alder reaction%thermostability%polymerization
对N-(苯并环丁烯-4-基)马来酰亚胺(NBCBMI)单体在热引发下发生的Dieis-Alder反应进行了初步探索,研究了该单体和苯乙烯(St)及N-苯基马来酰亚胺(NPMI)的自由基共聚物分别与NPMI发生的Diels-Alder反应,并对聚合物结构进行了表征分析.通过热重分析研究了Diels-Alder反应前后聚合物热稳定性的变化.结果表明,聚合物DANBCBMI初始分解温度约为500℃,600℃的热失重仅为32.21%,比NBCBMI自由基聚合产物PNBCBMI的热稳定性有显著提高,而共聚物在发生Diels-Alder反应后的溶解性下降,但热稳定性有一定提高.
對N-(苯併環丁烯-4-基)馬來酰亞胺(NBCBMI)單體在熱引髮下髮生的Dieis-Alder反應進行瞭初步探索,研究瞭該單體和苯乙烯(St)及N-苯基馬來酰亞胺(NPMI)的自由基共聚物分彆與NPMI髮生的Diels-Alder反應,併對聚閤物結構進行瞭錶徵分析.通過熱重分析研究瞭Diels-Alder反應前後聚閤物熱穩定性的變化.結果錶明,聚閤物DANBCBMI初始分解溫度約為500℃,600℃的熱失重僅為32.21%,比NBCBMI自由基聚閤產物PNBCBMI的熱穩定性有顯著提高,而共聚物在髮生Diels-Alder反應後的溶解性下降,但熱穩定性有一定提高.
대N-(분병배정희-4-기)마래선아알(NBCBMI)단체재열인발하발생적Dieis-Alder반응진행료초보탐색,연구료해단체화분을희(St)급N-분기마래선아알(NPMI)적자유기공취물분별여NPMI발생적Diels-Alder반응,병대취합물결구진행료표정분석.통과열중분석연구료Diels-Alder반응전후취합물열은정성적변화.결과표명,취합물DANBCBMI초시분해온도약위500℃,600℃적열실중부위32.21%,비NBCBMI자유기취합산물PNBCBMI적열은정성유현저제고,이공취물재발생Diels-Alder반응후적용해성하강,단열은정성유일정제고.
Diels-Alder reaction of N-(benzocyclobuten-4-yl) maleimide monomer with itself under heat is explored firstly.At the same time,the radical copolymers of this monomer with styrene(St) and N-phenyl maleimide (NPMI) are prepared and the Diels-Alder reactions of the copolymers with NPMI are studied,too.The structures of the polymers are characterized by means of IR and 1H NMR.The thermal stabilities of the polymers are studied by TGA.The results indicate that the DANBCBMI has high decomposition temperature (i.e.the onset of decomposition temperature is 500℃ and only 32.21% weight loss is observed at 600℃).The thermal stabilities of the polymers increase slightly after Diels-Alder reaction but the solubility of polymers decreases.
