N，N＇-异辛胺-1，7-二（八烷氧基）花二酰亚胺自组装性能的研究

Study of self-assembly properties of N, N＇- isooctyl amine 1, 7-bis （eight alkoxy） perylene diimide

花二酰亚胺（简称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，在湾位上引入取代基可改善其溶解性和光电性质。此外酰亚胺基团具有强的吸电子能力．湾位取代烷氧基使其在良溶剂与不良溶剂中易形成纳米线，而PBI衍生物的大多数性质与其能够形成纳米线有关。本文通过TG、紫外-可见分光光度法，荧光分光光度法，电化学等测试手段对N，N’-异辛基-1，7-二八烷氧基芤二酰亚胺（简称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在良溶剂与不良溶剂中长出纳米线现象．因而其在电质变色、传感器方面具有潜在应用前景。

Perylene diimide （PBI） as an environmentally friendly, energy-saving, practical new materials with high thermal stability and solubility. Introducing substituents in N-position or bay-position substituents can improve the solubility , optical and electrical properties.Introducing long chain alkyl groups in the imide substituents （-N） can improve the flexibility of its solubility, introducing alkoxy in the Bay-position can change its solubility and other optical properties. Further imide groups having strong withdrawing ability. In this paper, the UV - visible spectrophotometry, fluorescence spectrophotometry, electrochemical testing methods for N,N＇- isooctyl amine-1,7-bis （alkoxy） perylene diimide （DFPBI） found DFPBI has better solubility and thermal stability, a wider absorption range , lower absorption bandgap and chromic phenomenon. Thus it has potential applications in temperament color, gas sensing and so on.