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Photophysical processes of a copolymer containing 1,1′-binaphthyl-2,2′-diamino and carbazolyl units
被引:4
|作者:
Chen, ZB
[1
]
Zhang, CH
Bai, FL
机构:
[1] Shanxi Univ, Dept Chem, Taiyuan 030006, Peoples R China
[2] Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
基金:
中国国家自然科学基金;
关键词:
copolymer;
2,2 '-dimethacrylamido-1,1 '-binaphthyl;
vinylcarbazole;
excirner;
triple exciplex;
D O I:
10.1016/S1386-1425(02)00080-X
中图分类号:
O433 [光谱学];
学科分类号:
0703 ;
070302 ;
摘要:
The photophysical processes of copolymer formed by copolymerization of 2,2'-dimethacrylamido-1,1'-binaphthyl (DMBN) with vinylcarbazole (VCZ) have been carefully studied. The results show that when the solution of copolymer (DMBN-VCZ) in THF located in low concentration range ( < 10(-3) mg/ml), the fluorescence emission is in good agreement with that of DMBN monomer and the excimer is formed with gradual increase in concentration of copolymer (DMBN-VCZ): The fluorescence of copolymer (DMBN-VCZ) can be quenched both by electron donors and acceptors where the quenching effects follow the Stern-Volmer equation. The dimolecular exciplex between copolymer (DMBN-VCZ) and N,N-dimethylaniline (DMA) are formed and the triple exciplexes are also observed in the same system. (C) 2002 Elsevier Science B.V. All rights reserved.
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页码:2885 / 2888
页数:4
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