Benzodithiophene based copolymer containing thieno [3,4-B] thiophene units and preparing method and applications thereof
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United States of America Patent
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Jun 14, 2016
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Oct 22, 2015
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Nov 30, 2012
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Nov 30, 2012
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Abstract
The present invention relates to a benzodithiophene based copolymer containing thieno[3,4-b]thiophene units and a preparing method and applications thereof. The polymer has a structural formula (I), wherein R1 and R2 are respectively selected from H, and alkyl groups of C1 to C16; R3 and R4 are respectively selected from H, alkyl groups of C1 to C16, alkoxy groups of C1 to C16, or thiophene groups substituted by alkyl groups of C1 to C16; R5 is selected from alkyl groups of C1 to C16; n is a natural number from 7 to 80. Applications of the benzodithiophene based copolymer containing thieno[3,4-b]thiophene units in polymer solar cells, polymer organic light-emission, polymer organic field effect transistors, polymer organic optical storage, polymer organic nonlinear materials or polymer organic laser are also provided.
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