【摘要】 由单体Ma[2, 5 二(2 乙基己氧基) 1, 4 双{2, 2 〔5 (对氟代苯基)〕1, 3, 4 口恶二唑基}苯]分别与三组分单体(双酚A、砜代双酚A或混合的双酚A)在N,N 二甲基乙酰胺/甲苯/碳酸钾的催化下于165℃进行亲核取代聚合反应得到淡黄色的固体,进一步纯化后得到含口恶二唑杂环的聚芳醚型非共轭的新型有机电致发光材料PE1、PE2、PE3。引入双侧链取代基增强了该类材料的溶解性能,通过控制反应条件及调节聚合温度获得了高收率的聚合产物。分别测得其化学物理性能,制备了聚合物PE1、PE2、PE3的简单结构器件(ITO/polymer/Ca/Ag),首次获得了该类材料单层器件的蓝色有机电致发光,且该类材料具有较优良的热稳定性。更多还原

【Abstract】 Several novel unconjugated oxdiazole-containing ploy(aryl ether) type organic light emitting materials of PE1,PE2 and PE3 were synthesized through nucleophilic substitution reaction of monomer Ma [2,5-bis(2-ethyl-hexoxy)-1,4-bis{2,2′-〔5-(p-fluorophenyl)〕 -1,3,4-oxodiazole}benzene] and another three parts of compounds(biphenol A, sulfonobisphenol A and mixed sulfono- biphenyl ) in the mixture solution of N,N-dimethyl acetamide and toluene at a temperature of 165 ℃,catalysted by potassium carbonate. Their chemical structures were characterized by H 1 NMR and element analysis. Their solubility was apparently improved by introducing of double flexible side-chain substitutes. The polymers were obtained in a good yield via controlling reaction condition and polymerization temperature. Chemical and physical properties of these materials were investigated by absorption spectra, photoluminescent spectra and current-voltage relation. Absorption peaks of PE1, PE2 and PE3 at 374, 374, 397 nm respectively are almost identical. Nevertheless, the photoluminescent peak of PE3 at 572 nm exhibits a large bathochromic shift contrast to them of PE1 and PE2 at 439, 438 nm respectively. Fabrications of simple devices based on these polymers with structure of ITO/polymer/Ca/Ag were firstly performed. Results show these materials have blue light emitting as well as good thermal stability.更多还原