(PARTIALLY) CONJUGATED POLYMER, PROCESS FOR ITS PREPARATION AND USE IN ELECTROLUMINESCENT DEVICES

摘要

A polymer for use in an optical device comprising one or more regions, where each region comprises (i) a first structural unit having general formula I: where m=1 or 2 and which contains at least one substituent selected from the group consisting of alkyl, alkoxy, aryl, aryloxy, heteroaryl, and heteroaryloxy groups, each of which may be further substituted; and (ii) a second structural unit Ar selected from the group consisting of heteroaryl, triarylamine and 2,7-fluorenyl; such that where m=1 each region comprises a unit having general formula II: <?in-line-formulae description="In-line Formulae" end="lead"?><img id="PRIVATE-USE-CHARACTER-00001" he="7.20mm" wi="8.47mm" file="US07125952-20061024-Parenopenst.TIF" alt="private use character Parenopenst" img-content="character" img-format="tif" />first structural unit-Ar<img id="PRIVATE-USE-CHARACTER-00002" he="7.20mm" wi="8.47mm" file="US07125952-20061024-Parenclosest.TIF" alt="private use character Parenclosest" img-content="character" img-format="tif" /> (II)<?in-line-formulae description="In-line Formulae" end="tail"?> wherein, the substituent has a molecular weight of less than 300.