本文關(guān)鍵詞： 藍光材料 環(huán)三磷腈 蒽 Suzuki反應 星狀結(jié)構(gòu)　出處：《北京理工大學》2015年碩士論文　論文類型：學位論文

【摘要】：有機發(fā)光二極管(OLED)具有啟動電壓低、高亮度、寬視覺、響應快速以及自發(fā)光等特點， OLED的研究引起了研究者的高度關(guān)注。 為了實現(xiàn)全彩顯示，，OLED發(fā)光層中紅、綠、藍三基色的有機發(fā)光材料的性能需要同步。然而，由于藍光的寬帶隙特性，藍色有機發(fā)光材料相對于紅色和綠色有機發(fā)光材料在壽命、效率和光譜純度方面的差距較大。 本文針對有機藍色發(fā)光材料所面臨的壽命、發(fā)光效率和光譜純度方面的不足，設計了一種新型有機藍色發(fā)光材料——以三聚磷腈為核、蒽為發(fā)光基團的星形高分子。將環(huán)磷腈球狀空間結(jié)構(gòu)、熱穩(wěn)定性等特點與蒽的高藍光純度和效率結(jié)合起來，來實現(xiàn)所設計的新型有機藍光材料在穩(wěn)定性、藍光的效率和純度方面協(xié)同。 設計了三條合成路線，并進行了實驗驗證。結(jié)果顯示，我們設計的采用蒽硼酸進行Suzuki反應、逐步合成的路線具有可行性。 蒽硼酸是重要的中間體，因此在實驗過程中對蒽硼酸的合成進行了合成工藝的優(yōu)化，包括反應物的配比和后處理重結(jié)晶試劑的選擇。研究結(jié)果顯示蒽硼酸合成原料的最佳配比為正丁基鋰：9-溴蒽：硼酸三異丙酯=1.2:1:1.5。后處理采用四氯化碳試劑進行重結(jié)晶，實際產(chǎn)率78%。 對Suzuki反應的催化體系進行了優(yōu)化，最終優(yōu)化的條件為：使用四三苯基磷鈀作催化劑，通過改變加料順序來嚴格控制無氧的條件，使用甲醇重結(jié)晶的后處理方式來提高產(chǎn)率，實際產(chǎn)率為52%。 對目標化合物進行了初步的性能測試，包括紫外吸收光譜、熒光發(fā)射光譜。
[Abstract]:Organic light emitting diode ( OLED ) has the characteristics of low starting voltage , high brightness , wide vision , fast response and self - emission , and the research of OLED has attracted the attention of researchers . However , due to the wide band gap characteristics of blue light , the gap between the blue organic light emitting material and the red and green organic light emitting materials in terms of life , efficiency and spectral purity is large . In this paper , we designed a novel organic blue luminescent material , which uses tripolyphosphazenes as the core and anthracene as the luminescent group , and combines the characteristics of the spherical space structure and the thermal stability of the cyclophosphazenes with the high blue purity and the efficiency of anthracene to realize the cooperation of the novel organic blue material in the aspects of stability , blue light efficiency and purity . Three synthetic routes were designed and verified by experiments . The results showed that the route of stepwise synthesis was feasible by the Suzuki reaction of anthracene boronic acid . Anthracene boric acid is an important intermediate . Therefore , the synthesis of anthracene boronic acid is optimized during the experiment , including the ratio of reactants and the choice of post - treatment recrystallization reagents . The results show that the optimal mixture ratio of the raw materials of anthracene boronic acid is n - butyl lithium : 9 - bromoanthracene : triisopropyl borate = 1.2 : 1 : 1.5 . The post - treatment uses carbon tetrachloride reagent to recrystallize , the actual yield is 78 % . The catalytic system of Suzuki reaction was optimized . The optimized conditions were as follows : using tetratriphenylphosphonium palladium as catalyst , strictly controlling the conditions of oxygen - free conditions by changing the feeding sequence , using the post - treatment method of methanol recrystallization to improve the yield and the actual yield of 52 % . The target compound was subjected to a preliminary performance test , including UV absorption spectrum , fluorescence emission spectrum .

【學位授予單位】：北京理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TN383.1

【相似文獻】

相關(guān)期刊論文 前10條

1 李恒;任天輝;鐘慶華;鄭飛t

本文編號：1548143