發(fā)布時(shí)間：2018-03-05 12:04

  本文選題：4-氨基水楊酸　切入點(diǎn)：聚苯胺　出處：《江蘇科技大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：近年來,導(dǎo)電高分子材料發(fā)展很快,在隱身技術(shù)、電池、傳感器和顯示材料等方面都有應(yīng)用。聚苯胺是研究最多、應(yīng)用前景最好的導(dǎo)電高分子材料之一,但是其高的pH依賴性限制了它的發(fā)展。4-氨基水楊酸是一種同時(shí)含酸性和氧化還原活性基團(tuán)的苯胺衍生物。本論文通過循環(huán)伏安法制備了聚(苯胺-共-4-氨基水楊酸),并研究了共聚物的電化學(xué)性質(zhì)及其在電化學(xué)傳感器以及電池方面的應(yīng)用。為了進(jìn)行比較,本文對4-氨基水楊酸均聚物及其電化學(xué)活性也進(jìn)行了詳細(xì)研究。共聚電化學(xué)合成對探索與研究更多的同時(shí)含酸性和氧化還原活性基團(tuán)的新型導(dǎo)電高分子材料及其應(yīng)用具有重要借鑒意義。1、聚(4-氨基水楊酸)的電化學(xué)合成及其電化學(xué)性質(zhì)采用循環(huán)伏安法,在玻碳電極上合成聚(4-氨基水楊酸)。該均聚物在不同pH值(pH 1.0-12.0)的0.30 mol·L-1 Na2SO4溶液中均具有良好的電活性。均聚物的氧化峰和還原峰電流分別與掃描速率的平方根呈良好線性關(guān)系,表明該電極反應(yīng)受擴(kuò)散過程控制。使用紫外-可見光譜、XPS、紅外光譜、核磁共振譜探究了該聚合物的結(jié)構(gòu),提出4-氨基水楊酸的聚合機(jī)理。SEM表明均聚物的形貌主要是由分散的顆粒構(gòu)成。該均聚物鏈中pH敏感官能團(tuán)(-COOH和-OH)的協(xié)同作用提高了均聚物的電化學(xué)性能。2、聚(苯胺-共-4-氨基水楊酸)的電化學(xué)合成及其電化學(xué)性質(zhì)采用循環(huán)伏安法,首先在玻碳電極上合成聚(苯胺-共-4-氨基水楊酸)。該共聚物在不同pH值(1.0-11.0)的0.30 mol·L-1 Na2SO4溶液中表現(xiàn)出很高的電活性。這主要?dú)w功于共聚物鏈中含有4-氨基水楊酸單元的-COOH與-OH能調(diào)節(jié)共聚物周圍環(huán)境pH。紫外-可見光譜、紅外光譜與XPS能譜研究驗(yàn)證了4-氨基水楊酸在與苯胺的電化學(xué)合成中,已被成功引進(jìn)共聚物鏈中。SEM顯示了共聚物形貌由附著有小顆粒的交織纖維棒構(gòu)成,而且4-氨基水楊酸的濃度及合成電位也強(qiáng)烈的影響了共聚物的纖維狀納米結(jié)構(gòu)。3、基于聚(苯胺-共-4-氨基水楊酸)的過氧化氫傳感器使用循環(huán)伏安法,在玻碳電極上合成聚(苯胺-共-4-氨基水楊酸),并構(gòu)建了基于該共聚物修飾電極的新型無酶過氧化氫傳感器。循環(huán)伏安掃描表明此共聚物電極能在水溶液中有效地催化還原H2O2。因此,這種修飾電極可以被用來測定水溶液中的H2O2。計(jì)時(shí)電流法研究表明,該共聚物修飾電極在含H2O2的pH 6.0的磷酸鹽緩沖溶液中,在5-500μmol·L-1的濃度范圍內(nèi),可得一條線性相關(guān)系數(shù)為0.9969的直線。此外,實(shí)驗(yàn)結(jié)果還表明該共聚物修飾電極傳感器具有良好的選擇性和穩(wěn)定性。4、聚(苯胺-共-4-氨基水楊酸)用于鋅-導(dǎo)電聚合物可充電電池的電化學(xué)性能研究使用循環(huán)伏安法,在鉑片電極上合成了直徑約為20-80 nm纖維結(jié)構(gòu)的聚(苯胺-共-4-氨基水楊酸)�；谘h(huán)伏安與交流阻抗技術(shù)對電解液的研究,構(gòu)建了以聚(苯胺-共-4-氨基水楊酸)修飾的鉑片電極為正極,鋅片為負(fù)極,電解液為氯化銨與氯化鋅混合液的二次電池。通過恒電流計(jì)時(shí)電位法測定了該二次電池的充-放電性能,結(jié)果顯示該聚合物電池的比容量高于聚苯胺電池,充-放電次數(shù)達(dá)到181次時(shí),庫倫效率還能達(dá)到97.9%。這說明該電池具有良好的充-放電性能。
[Abstract]:In recent years, the development of conductive polymer materials quickly, the battery in the stealth technology, sensor and display material etc are applied. The polyaniline is the most studied, one of the best applications of conductive polymer materials, but the high pH dependent limits the development of it is.4- amino salicylic acid containing both acidic and redox the active group of aniline derivatives. The cyclic voltammetry was prepared by poly (aniline - -4- amino salicylic acid), and to study the electrochemical properties of the copolymer and its application in electrochemical sensors and batteries. For comparison, the 4- aminosalicylic acid homopolymer and its electrochemical activity were studied in detail. The important significance of.1 NEW type of conductive polymer materials on the electrochemical synthesis of copolymer and explore and research more acidic and redox active group and its application, Poly (4- amino acid) electrochemical synthesis and electrochemical properties by cyclic voltammetry, the synthesis of poly on glassy carbon electrode (4- amino acid). The homopolymer at different pH values (pH 1.0-12.0) has a good electricity activity was 0.30 mol / L-1 Na2SO4 solution. The oxidation peak of homopolymer and the reduction peak current square root respectively with the scan rate showed a good linear relationship, show that the electrode reaction diffusion process control. By using UV Vis spectroscopy, XPS, infrared spectroscopy, nuclear magnetic resonance spectroscopy studies the structure of the polymer, the 4- amino acid polymerization mechanism shows that the morphology of.SEM homopolymer is mainly composed of by the dispersed particles. The homopolymer chain pH sensitive functional groups (-COOH and -OH) the synergistic effect to improve the electrochemical performance of.2 homopolymer, poly (aniline - -4- amino salicylic acid) electrochemical synthesis and electrochemical properties by cyclic voltammetry First of all, on a glassy carbon electrode for synthesis of poly (aniline Co -4- amino salicylic acid). The copolymer in different pH values (1.0-11.0) showed a very high electrical activity of 0.30 mol L-1 Na2SO4 solution. This is mainly due to -COOH and -OH in the copolymers containing 4- amino acid unit can adjust the copolymer around pH. UV Vis spectroscopy, infrared spectroscopy and XPS spectroscopy studies verified in electrochemical synthesis of 4- amino salicylic acid and aniline, has been successfully introduced in the copolymers.SEM shows the morphology of the copolymer composition attached with small particles of interwoven fiber rod, and the concentration of 4- aminosalicylic acid and synthetic potential of strong influence the.3 fibrous nano structure of copolymer, based on poly (aniline Co -4- amino salicylic acid) by cyclic voltammetry using hydrogen peroxide sensor on glassy carbon electrode synthesis of poly (aniline - -4- amino salicylic acid), and the construction of the The new copolymer modified electrode enzyme free hydrogen peroxide sensor based on cyclic voltammetry showed that the copolymer electrodes in aqueous solution can effectively catalyze the reduction of H2O2. therefore, this modified electrode can be used for the determination of H2O2. in aqueous solution chronoamperometric results indicated that the copolymer modified electrode in phosphate buffer solution containing H2O2 pH 6. And in the concentration range of 5-500 ~ mol ~ L-1, may have a linear correlation coefficient of 0.9969 lines. In addition, the experimental results show that the copolymer modified electrode sensor has good selectivity and stability of.4, poly (aniline - -4- amino salicylic acid) was used to study the electrochemical properties of zinc - conductive polymer rechargeable battery the use of cyclic voltammetry on platinum electrode was synthesized with a diameter of about 20-80 nm fiber structure of poly (aniline - -4- amino salicylic acid) and AC resistance based on cyclic voltammetry. Study on the technology of anti electrolyte, constructed from poly (aniline Co -4- amino salicylic acid) modified platinum electrode as anode, zinc plate as anode, electrolyte for secondary battery two ammonium chloride and zinc chloride mixture. The two battery charge - discharge performance was measured by constant current chronopotentiometry the results show that the polymer, the specific capacity of the battery is higher than that of polyaniline battery charge discharge when the number reached 181, the efficiency of Kulun can reach 97.9%. which shows that the battery has good charge discharge performance.

【學(xué)位授予單位】：江蘇科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：O631

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