Aromatic polymer

Details Aromatic polymer Aromatic polymer

2006-06-09

2010-12-14

Pak, Sung H (Department: 2874)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

Reexamination Certificate

active

07852434

ABSTRACT:
Disclosed is an aromatic polymer containing one or more repeating units represented by the following formula (1). (In the formula, Ar1represents an arylene group having a fused ring structure or a divalent heterocyclic compound group having a π-conjugated system, and contains a group represented by the formula (2) below. This group is bonded to a carbon atom having a sp2hybrid orbital which is contained in a ring of the ring structure of the arylene group having a fused ring structure or the divalent heterocyclic compound group having a π-conjugated system represented by Ar1. (In the formula (2), E1represents a hydrogen atom, a halogen atom or a monovalent organic group; Ar2represents a group having a divalent π-conjugated cyclic compound residue, and two Ar2's may be the same as or different from each other; X1represents a divalent group selected from the group consisting of —NQ1-, —PQ2- and —BQ3-, and Q1-Q3independently represent a substituent; Z represents a direct bond or a divalent linking group, and two Z's may be the same as or different from each other; mi's respectively represent 0 or 1; and in case where two X1's exist, they may be the same as or different from each other.)

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