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作 者:张昕[1] 金英华[1] 杜福胜[1] 李子臣[1] 李福绵[1]
机构地区:[1]北京大学化学与分子工程学院高分子科学与工程系,北京100871
出 处:《高分子学报》2002年第5期688-691,共4页Acta Polymerica Sinica
基 金:国家自然科学基金项目 (基金号 5 0 0 0 3 0 0 1);教育部博士点研究基金项目 (基金号 990 0 0 13 1)
摘 要:Bismaleimides bearing electron\|donating chromophore moieties, i.e.N,N \|bis(4\|maleimidophenyl)\|methylamine (BMIPMA),and its saturated model compound N,N\| bis(4\|succinimidophenyl)\|methylamine(BSIPMA) were synthesized and their absorption and fluorescence behaviors were investigated. It was found that BMIPMA possess a strong fluorescence structural self\|quenching effect (SSQE).There is almost no fluorescence emission observed for BMIPMA,whereas its saturated model compound BSIPMA displays a strong fluorescence emission at the same chromophore concentration.On the basis of the SSQE,a new fluorescence approach was developed to monitor the process of the copolymerization of bismaleimides with diamines,which can directly reflect the consumption of the CC bond of maleimide unit.The results agreed well with that obtained by 1H\|NMR measurement pused.Bismaleimides bearing electron-donating chromophore moieties, ie. N,N-bis(4-maleimidophenyl)-thylamine (BMIPMA), and its saturated model compound N,N-bis (4-succinimidophenyl)-methylamine (BSIPMA) were synthesized and their absorption and fluorescence behaviors were investigated. It was found that BMIPMA possess a strong fluorescence structural self-quenching effect (SSQE). There is almost no fluorescence emission observed for BMIPMA, whereas its saturated model compound BSIPMA displays a strong fluorescence emission at the same chromophore concentration. On the basis of the SSQE, a new fluorescence approach was developed to monitor the process of the copolymerization of bismaleimides with diamines, which can directly reflect the consumption of the C=C bond of maleimide unit. The results agreed well with that obtained by H-1-NMR measurement pused.
关 键 词:给电子生色团 双马来酰亚胺 脂肪二胺 共聚合 荧光光谱 N N-双(4-马来酰亚胺基苯基)-甲胺 结构自猝灭效应 双马型树脂
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