申请人:Cambridge Display Technology Limited
公开号:EP2264123A2
公开(公告)日:2010-12-22
A process for the preparation of a material capable of luminescence, said material comprising:
a polymer or oligomer; and
an organometallic group,
wherein the polymer or oligomer is at least partially conjugated and the organometallic group is covalently bound to the polymer or oligomer and the nature, location and/or proportion of the polymer or oligomer and of the organometallic group in the material are selected so that the luminescence predominantly is phosphorescence; said process comprising:
(a) reacting monomers to form a polymer or oligomer wherein each monomer has at least two reactive groups selected from the group consisting of a halide group, a boronic acid group, a boronic ester group and a borane group and each monomer comprises an aryl or heteroaryl group; and
(b) terminating the polymer or oligomer formed in step (a) using an end-capping reagent, said end-capping reagent comprising one reactive group selected from the group consisting of a halide group, a boronic acid group, a boronic ester group and a borane group and either (i) containing an organometallic or (ii) being capable of forming a complex with a metal when treated with a metal-complexing reagent; and
(c) where the end-capping reagent is as defined in (ii), treating the terminated polymer or oligomer from step (b) with a metal-complexing reagent.
一种制备发光材料的工艺,所述材料包括
聚合物或低聚物;以及
有机金属基团、
其中聚合物或低聚物至少部分共轭,有机金属基团与聚合物或低聚物共价结合,聚合物或低聚物和有机金属基团在材料中的性质、位置和/或比例经过选择,使发光主要为磷光;所述工艺包括
(a) 使单体反应以形成聚合物或低聚物,其中每个单体具有至少两个反应基团,这 些反应基团选自由卤化物基团、硼酸基团、硼酸酯基团和硼烷基团组成的组,而 且每个单体包括芳基或杂芳基;以及
(b) 使用末端封端试剂终止步骤(a)中形成的聚合物或低聚物,所述末端封端试剂包含一个反应基团,该反应基团选自由卤化物基团、硼酸基团、硼酸酯基团和硼烷基团组成的组,且(i)含有有机金属,或(ii)经金属络合试剂处理后能够与金属形成络合物;以及
(c) 如果末端封端试剂如(ii)中定义,则用金属络合试剂处理步骤(b)中的末端聚合物或低聚物。