| 摘要 |
A polymeric material comprising alternate substituted fluorene and phenylene units, as represented by the following formula wherein R1, R2, R3 and R4, which may be identical or different, are each selected from the group consisting of H, a (C1-C22) linear or branched alkyl, alkoxy or oligo (oxyetylene) group, a (C6- C30) cycloalkyl group, and an unsubstituted or substituted aryl group, and n is from about 3 to about 5000.
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