ELECTROLUMINESCENT COPOLYMERS WITH MULTI- FUNCTIONAL MONOMERS AND USE THEREOF

    公开(公告)号:WO2004072171A3

    公开(公告)日:2004-08-26

    申请号:PCT/US2004/004166

    申请日:2004-02-10

    Abstract: Polymeric compositions are provided comprising a first plurality of first monomeric units comprising an aromatic group with at least one substituent selected from alkyl, heteroalkyl, alkenyl, heteroalkenyl, alkynyl, heteroalkynyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, and amino, and a second plurality of second multi functional monomeric units, wherein each multi-functional monomeric unit is capable of forming a branching point in the polymeric composition, thereby resulting in a branched material. Invention compositions therefore have an altered morphology relative to similar non-branched materials. When used to form an EL layer within an EL device, this altered morphology results in EL layers with improved efficiency, which in turn results in more efficient EL devices.

    AROMATIC POLYMERS WITH MULTIPLE SIDE CHAINS AND METHODS FOR USE THEREOF
    4.
    发明申请
    AROMATIC POLYMERS WITH MULTIPLE SIDE CHAINS AND METHODS FOR USE THEREOF 审中-公开
    具有多个链的芳族聚合物及其使用方法

    公开(公告)号:WO2004072147A1

    公开(公告)日:2004-08-26

    申请号:PCT/US2004/004164

    申请日:2004-02-10

    Abstract: Polymeric compositions are provided comprising aromatic monomeric units selected from fluorene, spirofluorene, and bridged biphenyl, wherein the polymeric composition has at least two different substituents selected from alkyl, heteroalkyl, alkenyl, heteroalkenyl, alkynyl, heteroalkynyl, aryl, heteroaryl, arylalkyl, and heteroarylalkyl. The variation of substituents alters the morphology of invention polymeric compositions relative to polymers that lack variation of substituents. When used as an active layer(s) in electroluminescent (EL) devices, the altered morphology results in EL layers with improved efficiency, which in turn results in more efficient EL devices. The polymeric compositions of the invention also have increased solubility in solvents and better film-forming properties.

    Abstract translation: 提供了包含选自芴,螺芴和桥连联苯的芳族单体单元的聚合物组合物,其中聚合物组合物具有至少两个选自烷基,杂烷基,烯基,杂烯基,炔基,杂炔基,芳基,杂芳基,芳基烷基和杂芳基烷基的不同取代基 。 相对于缺乏取代基变化的聚合物,取代基的变化改变了本发明聚合物组合物的形态。 当用作电致发光(EL)器件中的有源层时,改变的形态导致EL层的效率提高,这又导致更有效的EL器件。 本发明的聚合物组合物还具有增加的溶剂溶解性和更好的成膜性能。

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