Synthesis and optical properties of poly[(2-alkoxy-5-methyl-1,3-phenyleneethynylene)-alt-(1,3- phenyleneethynylene)]s
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作者:
Chu, Qinghui
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Department of Chemistry, Center for High Performance Polymers and Composites, Clark Atlanta University, Atlanta, GA 30314, United StatesDepartment of Chemistry, Center for High Performance Polymers and Composites, Clark Atlanta University, Atlanta, GA 30314, United States
Chu, Qinghui
[1
]
Pang, Yi
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Department of Chemistry, Center for High Performance Polymers and Composites, Clark Atlanta University, Atlanta, GA 30314, United StatesDepartment of Chemistry, Center for High Performance Polymers and Composites, Clark Atlanta University, Atlanta, GA 30314, United States
Pang, Yi
[1
]
机构:
[1] Department of Chemistry, Center for High Performance Polymers and Composites, Clark Atlanta University, Atlanta, GA 30314, United States
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).