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机构地区:[1]秦皇岛出入境检验检疫局煤炭检测技术中心,秦皇岛066004
出 处:《化工新型材料》2016年第11期105-107,共3页New Chemical Materials
基 金:国家"十二五"科技支撑计划项目(2011BAD11B05)资助
摘 要:苝二酰亚胺(PBI)作为一种环保、节能、实用的新型材料,具有高的热稳定性和溶解性,酰亚胺基团具有强的吸电子能力,湾位取代对甲基苯氧基使其形成稳定阴离子,而PBI衍生物的光电性能与其能够形成相对稳定的还原态有关。通过热重、紫外-可见分光光度法,荧光分光光度法和电化学等测试手段对N,N′-异辛基-1,7-二甲基苯氧基苝二酰亚胺(DFPBI)进行了系统测试,发现DFPBI具有更好的溶解性和热稳定性、更宽的吸收范围以及更低的吸收带隙且具有电致变色的现象。因而其在电质变色、传感具有潜在应用前景。Perylene diimide (PBI) as an environmentally friendly, energy-saving, practical new materials had high thermal stability and solubility. Introducing long chain alkyl groups in the imide substituents (-N) can improve its solubili- ty,introducing hydroxypyridine in the Bay-position can change its solubility and other optical properties. Further imide groups having strong electron-withdrawing ability, and photoelectric properties of PBI derivative anion was relation to form- ing a relatively stable free radicals. The TG, UV-visible spectrophotometry, fluorescence spectrophotometry,electrochemical testing methods for N, N-isooctyl amine-1,7-dimethoxyphenyl perylene diimide (DFPBI) found DFPBI had better solubili- ty and thermal stability,a wider absorption range, lower absorption bandgap and electrochromic phenomenon. Thus it had potential applications in electrochromism,gas sensing and so on. Key words perylene diimide, UV-visible absorption spectrum, photovoltaic conversion, reduced state, electro-
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