Synthesis 2002(9): 1261-1267
DOI: 10.1055/s-2002-32528
PAPER
© Georg Thieme Verlag Stuttgart · New York

Synthesis and Optical Properties of Poly[(2-alkoxy-5-methyl-1,3-phenylene­ethynylene)-alt-(1,3-phenyleneethynylene)]s

Qinghui Chu, Yi Pang*
Department of Chemistry & Center for High Performance Polymers and Composites, Clark Atlanta University, Atlanta, Georgia 30314, U.S.A.
e-Mail: ypang@cau.edu;
Further Information

Publication History

Received 2 March 2002
Publication Date:
28 June 2002 (online)

Abstract

A few examples of poly(m-phenyleneethynylene)s 6 and 9 have been synthesized via Heck-coupling reaction. With the aid of the model compound, the optical band structures of the electronic absorption and emission spectra have been characterized by using UV-Vis and fluorescence spectroscopy at variable temperatures. While both polymers 6 and 9 are blue-emitting in the solid state, the solution quantum efficiency of the former (φfl ≈ 0.34) is about twice as higher as that of the latter (φfl ≈ 0.15).