期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 285, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2022.126083
关键词
Fluorescence; Concentration-induced discoloration; Fluorescence probe; Conjugated polymer; Solid-state oxidative coupling polymerization
资金
- National Natural Science Foundation of China [22075045, 21978050]
- Science and Technology Project of Fujian Province: School-Enterprise Science and Technology Cooperation Project [2020H6029]
By solid-state oxidative coupling polymerization, a series of fluorene-co-anthracene copolymers and fluorene-co-naphthalene copolymers were successfully synthesized. These copolymers exhibit good thermal stability and adjustable optical properties, showing potential applications in optoelectronics.
Through the solid-state oxidative coupling polymerization, a series of fluorene-co-anthracene copolymer (PFA) and fluorene-co-naphthalene copolymers (PFN) were synthesized using FeCl3 as the oxidant. The structures of the copolymers were characterized by FT-IR and 1H NMR spectra, showing the random structures composed of fluorene units and 9,10-anthracene units or 1,4-linked naphthalene units. The increasing fluorene units in the backbones resulted in the increasing crystallization of copolymers by XRD patterns. All the copolymers exhibited good thermal stability. The optical properties could be adjusted by using different fluorene and anthracene or naphthalene ratios. Moreover, the polymer concentrations that affected the photoluminescence emission ranged from blue light to red light. The concentration-induced discoloration property also could be observed from the copolymers on the filter paper of TLC plates. This is attributed to the change in the effective conjugation length of a single polymer and the formation of polymer aggregates and excimers. These unique properties endow the PFA and PFN with potential applications in optoelectronics. Especially, these polymers exhibit enhanced emissions and on/off fluorescent switching which senses THF vapor efficiently.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据