本文選題：導(dǎo)電聚合物　切入點(diǎn)：5　出處：《青島科技大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：導(dǎo)電聚合物由于其獨(dú)特的性能優(yōu)勢(shì)而引起了人們的廣泛關(guān)注,這些優(yōu)勢(shì)包括合成工藝簡(jiǎn)單,加工性能優(yōu)異,多色彩顯示。目前,導(dǎo)電聚合物的研究主要集中在新型聚合物單體的設(shè)計(jì)和合成上。3,4-二氧乙撐噻吩(EDOT)由于其特點(diǎn)鮮明,性能優(yōu)異,被廣泛應(yīng)用在新型導(dǎo)電聚合物單體中,用來(lái)改善相應(yīng)導(dǎo)電聚合物的電致變色性能。本論文主要研究了以EDOT為原料,經(jīng)過(guò)分子設(shè)計(jì),分別和5,7-二溴吲哚、2,7-二溴-9,9螺二芴、4,7-雙(2-溴-5-噻吩基)-2,1,3苯并噻二唑,通過(guò)Stille偶聯(lián)反應(yīng)合成了三種新型單體,并基于相應(yīng)的聚合物膜制備了電致變色器件,研究了其電致變色性能。1、以EDOT和5,7-二溴吲哚為原料,通過(guò)偶聯(lián)反應(yīng)生成了新型單體5,7-雙(2-(3,4-亞乙二氧基)噻吩基)-吲哚,即5,7-bis(2-(3,4-ethylenedioxy)thienyl)-indole(ETI)。在乙睛體系中,基于ETI單體制備了高性能的、具有自支撐性質(zhì)的導(dǎo)電聚合物PETI。研究表明該聚合物膜具有優(yōu)良的電化學(xué)活性和穩(wěn)定可逆的氧化還原性質(zhì)。利用紅外光譜、核磁氫譜等分析法探討了該聚合物聚合反應(yīng)機(jī)理。光譜電化學(xué)研究表明,PETI具有良好的電致變色性質(zhì),顯示出兩種不同顏色:棕色和藍(lán)色,并且具有高的光對(duì)比度(ΔT%)和著色效率�；赑ETI和聚(3,4-二氧乙撐噻吩)(PEDOT)研制了電致變色器件,該器件具有快速的響應(yīng)時(shí)間,較高的著色效率,良好的光學(xué)記憶和穩(wěn)定性。2、以EDOT和2,7-二溴-9,9’螺二芴為原料,合成了新的化合物2,7-雙(2-(3,4-亞乙二氧基)噻吩基)-螺二芴,2,7-bis(2-(3,4-ethylenedioxy)thienyl)-spirobifluorene(ETS),制備了相應(yīng)的聚合物PETS。該聚合物薄膜具有良好的電化學(xué)活性,電致變色性能良好,能夠在粉紅色和天藍(lán)色之間相互轉(zhuǎn)換。以PEDOT和PETS制備了電致變色器件,通過(guò)光譜電化學(xué)方法研究了其電致變色性能。研究表明,該器件能夠在黃綠色和深藍(lán)色之間反復(fù)轉(zhuǎn)換,轉(zhuǎn)換時(shí)間快,變色穩(wěn)定性好,器件在600nm處的著色效率為290 cm2 C-1。3、以EDO T和4,7-雙(2-溴-5-噻吩基)-2,1,3苯并噻二唑?yàn)樵?經(jīng)過(guò)Stille反應(yīng)制備了單體4,7-雙(2-(3,4-亞乙二氧基)-5-噻吩基)-2,1,3-苯并噻二唑,即4,7-Bis(2-(3,4-ethylenedioxy)-5-thienyl)-2,1,3-benzothiadiazole(ETB)。該單體通過(guò)電化學(xué)聚合制備了相應(yīng)的聚合物PETB,其氧化電位為0.75 V,光譜電化學(xué)研究表明,PETB可以在深綠色和深藍(lán)色之間可逆轉(zhuǎn)化,并且顯示出了良好的電致變色性能,具有較高的著色效率,在電致變色智能窗方面具有潛在的應(yīng)用。
[Abstract]:Conductive polymers have attracted wide attention due to their unique performance advantages, including simple synthesis process, excellent processing performance, multi-color display. The research of conductive polymer is mainly focused on the design and synthesis of novel polymer monomers. Due to its distinctive characteristics and excellent properties, it has been widely used in novel conductive polymer monomers. In this paper, the electrochromic properties of the corresponding conductive polymers were studied by using EDOT as the raw material, and the molecular design was carried out, respectively, with 5o 7- dibromoindole 2, dibromoindole 9, spirofluorene 4, 7, bis-2-bromo-5-thiophene-1-tribenzothiadiazole-1-3-benzothiadiazole, respectively, and 5-dibromoindole and 5-dibromoindole-2-dibromoindole-9-difluorofluorene. Three new monomers were synthesized by Stille coupling reaction, and electrochromic devices were prepared based on the corresponding polymer films. The electrochromic properties of the devices were studied. The electrochromic properties of the devices were studied by using EDOT and 5-dibromoindole as raw materials. By coupling reaction, a new monomer, 5o 7- dioxy (2-dimethylidene) thienyl) -indoleindole (57-biso 2-ethylenedioxythienylthienyl chloride-indoleurane) was synthesized by coupling reaction. High performance ETI monomers were prepared in the system of ethylenedioxythienedioxythienyl-indoledoxylic acid (ETI). A self-supporting conductive polymer PETI.The study shows that the polymer film has excellent electrochemical activity and stable and reversible redox properties. The polymerization mechanism of the polymer was investigated by nuclear magnetic hydrogen spectroscopy and other methods. Spectroelectrochemical studies showed that PETI had good electrochromic properties and showed two different colors: Brown and blue. Based on PETI and PEDOT, an electrochromic device has been developed. The device has fast response time and high coloring efficiency. Good optical memory and stability, using EDOT and 2-dibromo-9 '-spirodifluorene as raw materials, A new compound 2H _ 7- Bis _ 2-N _ 3H _ 3H _ 3H _ 3H _ 2O _ 2H _ 2H _ 2H _ 2H _ 2H _ 2H _ 7-biso _ 2-H _ 3N _ 4-ethylenedioxybutadiene thienyl-spirobifluoreorene-ETSN was synthesized and the corresponding polymer PETSs was prepared. The film has good electrochemical activity and good electrochromic properties, and its electrochromic properties are good. The electrochromic device was prepared by PEDOT and PETS. The electrochromic properties of the device were studied by spectroelectrochemical method. The results show that the device can be converted repeatedly between yellowish green and dark blue. The conversion time is fast and the stability of discoloration is good. The coloring efficiency of the device at 600nm is 290 cm2 C-1.3. The raw materials of the device are EDO T and 4o 7-bis-2-bromo-5-thiophene 2-bromo-5-thiophene 1-tribenzo-thiadiazole. The monomer 4H _ 7- Bis _ 2-N _ 3N _ 4-ethylene dioxy _ 2-thiophene _ (2) N _ (1) C _ (3) -benzothiadiazole was prepared by Stille reaction. The corresponding polymer PETB was prepared by electrochemical polymerization. The oxidation potential of PETB was 0.75 V. Spectral and electrochemical studies showed that PETB could be reversible converted between dark green and dark blue, and showed good electrochromic properties. It has high coloring efficiency and potential application in electrochromic intelligent windows.
【學(xué)位授予單位】：青島科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：O633.5;TB34

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