不同低聚乙二醇链长的聚对亚苯基亚乙烯基类交替型发光共聚物  

LIGHT-EMITTING PPV-BASED ALTERNATING COPOLYMERS WITH OLIGOMER ETHYLENE OXIDE SEGMENTS OF DIFFERENT LENGTHS

作　　者：王海侨[1] 刘宇[1] 宋娜[1] 何畅[2] 李永舫[2] 李效玉[1] 

机构地区：[1]北京化工大学纳米材料先进制备技术与应用科学教育部重点实验室,北京100029 [2]中国科学院化学研究所有机固体重点实验室,北京100080

出　　处：《高分子学报》2005年第4期501-506,共6页Acta Polymerica Sinica

基　　金：国家自然科学基金(基金号50473042);北京市自然科学基金(基金号2042017)资助项目

摘　　要：合成了3种分子主链由1,4二苯乙烯基苯(DSB,聚对亚苯基亚乙烯基PPV三单元的低聚物)与不同长度的离子传导型隔离链段低聚乙二醇(OEO,或聚氧乙烯)组成的交替型蓝色发光共聚物DSB二缩三乙二醇(TEO)、DSB五缩六乙二醇(SEO)和DSBPEG1500.研究了3种聚合物在其氯仿溶液中的电荷传输机理.通过多种手段考察了不同长度的OEO链段对聚合物的结晶能力、相结构以及其对锂盐溶解能力的影响,并讨论了此类材料的合理结构设计原则.以DSBTEO为发光层材料,装配了电致发光器件.Three light-emitting alternating copolymers, DSB-TEO, DSB-SEO and DSB-PEG1500, consisting of 1,4- distyrylbenzene （ DSB, oligomer of poly （ p-phenylene vinylene） （ PPV ） with three units） and ionic conducting oligomer ethylene oxide（OEO） segments in different lengths, were synthesized. The charge transport mechanism of these copolymers in chloroform solution was studied. The relationship of OEO chain length with crystallization, phase structure and solvency to the Li salt of copolymers were investigated. A proposal was offered for a rational design of this kind of copolymers. A light-emitting diode with configuration ITO/PEDOT-PSS/DSB-TEO/Ca （A1） was successfully fabricated.

关 键 词：聚对亚苯基亚乙烯基类 交替型发光共聚物 电荷传输机理 氯仿溶液 结构设计 发光层材料 电致发光器件 

分 类 号：O631[理学—高分子化学]