Synthesis and optical properties of polynaphthalene derivatives

被引：31

作者：

Mori, Takeshi ^{[1
]}

Kijima, Masashi ^{[1
]}

机构：

[1] Univ Tsukuba, Inst Mat Sci, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058573, Japan

来源：

OPTICAL MATERIALS | 2007年 / 30卷 / 04期

关键词：

conjugated polymers; naphthalene; photoluminescence; UV-vis spectroscopy;

D O I：

10.1016/j.optmat.2006.12.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Naphthalene-base conjugated polymers soluble in organic solvents were newly synthesized, and their optical properties were characterized. Three types of homopolymers were synthesized from 1,4-, 1,5- and 2,6-dibromonaphthalene derivatives by the Ni-catalyzed polycondensation. Alternate naphthalene copolymers with 1,4-phenylene were synthesized by Suzuki coupling. In the photoluminescence (PL) spectra, all polymers emitted bluish purple in CHCl3. Especially, 2,6-polynaphthalene derivatives showed high quantum efficiencies (phi(n) = 0.60-0.96). In the case of thin films, 1,5- and 1,4-linked polynaphthalenes showed PL spectra similar to those in solution, while 2,6-linked polynapthalenes had PL spectra shifted longer in wavelength than the former, which was due to pi-interaction of the stacking naphthalene units between the polymer chains. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：545 / 552

页数：8

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