發(fā)布時間：2017-12-26 20:15

  本文關(guān)鍵詞：聚苯胺及苯胺低聚體的合成與自組裝　出處：《中國科學技術(shù)大學》2017年碩士論文　論文類型：學位論文

  更多相關(guān)文章： 聚苯胺 苯胺低聚體 納米片層 自由基聚合 自組裝

【摘要】：自從發(fā)現(xiàn)摻雜后聚乙炔的電導(dǎo)率可以大幅度提升以來,有關(guān)有機導(dǎo)電高分子的研究引起了越來越多的人的注意。聚苯胺由于其合成方法簡單,單體原料容易獲得,并且經(jīng)摻雜后具有很好的導(dǎo)電性,成為導(dǎo)電高聚物領(lǐng)域的研究熱點。研究表明聚苯胺分子鏈的聚集形態(tài)會對其導(dǎo)電性能產(chǎn)生顯著的影響,因此,控制聚苯胺的形貌具有重要的意義。因為聚苯胺的溶解性差,對于形貌控制和研究帶來不利影響。然而,苯胺的低聚體衍生物具有良好的溶解性,因此,本論文從苯胺低聚體衍生物入手,對其自組裝行為和形貌進行探索研究,以求對聚苯胺的形貌控制提供有價值的信息。研究工作主要包括以下三個方面:1.通過4,4'-亞甲基雙(異氰酸苯酯)與N-苯基對苯二胺縮合,得到有機小分子。以此有機小分子為模板合成具有一定有序性的聚苯胺。利用傅立葉紅外光譜(FT-IR)、X射線衍射儀(XRD)、紫外分光光度計(UV-Vis)、掃描電子顯微鏡(SEM)、透射電子顯微鏡(TEM)等分析手段對其進行了形貌和結(jié)構(gòu)的表征。利用熱重分析儀(TG)、電化學工作站等分析手段,進一步比較無模板聚苯胺和模板聚苯胺熱性能和電性能的不同。2.設(shè)計、合成了三種苯胺低聚物,包括雙羧基封端的苯胺五聚體、3,5-二氨基苯甲酸與二苯胺縮合聚合物以及4-二苯胺基苯甲醛衍生物與對苯二胺縮合聚合物。通過核磁共振氫譜(1H-NMR)、核磁共振碳譜(13C-NMR)、傅立葉紅外光譜(FT-IR)、X射線衍射儀(XRD)、紫外分光光度計(UV-Vis)、掃描電子顯微鏡(SEM)、透射電子顯微鏡(TEM)等分析手段對其結(jié)構(gòu)和形貌進行表征,然后利用熱重分析儀(TG)對其熱性能進行分析。3.設(shè)計、合成了含有苯胺二聚體的苯乙烯衍生物,通過自組裝-自由基聚合的方法,成功地制備了聚合物納米片層材料。單體和聚合物的結(jié)構(gòu)通過核磁氫譜/碳譜和紅外光譜進行了分析確認,其自組裝行為通過電子顯微鏡、X-射線衍射進行了研究。實驗結(jié)果表明,二苯胺基苯乙烯單體在甲苯和丙酮的混合溶劑中可以自組裝成為二維納米片層,并能與馬來酰亞胺進行自由基共聚反應(yīng),形成尺寸數(shù)微米、厚度2納米的聚合物片層材料。本研究的結(jié)果證明,將自組裝與自由基聚合結(jié)合是一種制備聚合物二維納米片層材料的有效方法。
[Abstract]:Since the conductivity of polyacetylene (polyacetylene) can be greatly improved after doping, more and more attention has been paid to the research of organic conducting polymers. Due to its simple synthesis method, polyaniline is easy to obtain from monomers and has good conductivity after doping. It has become a research hotspot in the field of conductive polymers. The research shows that the aggregation morphology of polyaniline molecular chain has a significant influence on its electrical conductivity. Therefore, it is of great significance to control the morphology of polyaniline. Because the solubility of polyaniline is poor, it has adverse effects on morphology control and research. However, the oligomer derivatives of aniline have good solubility. Therefore, starting from the derivatives of aniline oligomers, the self-assembly behavior and morphology of aniline were explored in order to provide valuable information for the morphology control of polyaniline. The research work mainly includes the following three aspects: (1.) small organic molecules are obtained by condensation of 4,4'- methylene bis (benzyl isocyanate) and N- phenyl to benzyl two amine. The organic small molecule is used as a template to synthesize polyaniline with a certain order. The morphology and structure were characterized by Fu Liye transform infrared spectroscopy (FT-IR), X ray diffractometer (XRD), ultraviolet spectrophotometer (UV-Vis), scanning electron microscope (SEM) and transmission electron microscope (TEM). The thermogravimetric analyzer (TG) and electrochemical workstation were used to compare the thermal and electrical properties of template free polyaniline and template polyaniline. 2., three kinds of aniline oligomers were designed and synthesized, including dicarboxylic terminated aniline five polymers, 3,5- two amino benzoic acid and two aniline condensation polymers, and 4- two aniline benzaldehyde derivatives and polyaniline two amine condensation polymers. By nuclear magnetic resonance spectroscopy (1H-NMR), nuclear magnetic resonance spectra (13C-NMR), infrared spectroscopy (FT-IR), Fu Liye X - ray diffraction (XRD), ultraviolet spectrophotometer (UV-Vis), scanning electron microscopy (SEM), transmission electron microscopy (TEM) on the structure and morphology analysis etc. then, using thermogravimetric analyzer (TG) on the thermal performance analysis. 3., a styrene derivative containing aniline two polymer was designed and synthesized. The polymer nanoscale material was successfully prepared by self-assembly radical polymerization. The structures of monomers and polymers were analyzed by NMR / C and FTIR. The self assembly behavior was confirmed by electron microscopy and X- ray diffraction. The experimental results show that the two aniline styrene monomer can be self assembled into two dimensional nanosheets in toluene and acetone mixed solvents, and can be copolymerized with maleimide for free radical polymerization, forming a size of 2 micron and polymer nanoscale material. The results of this study show that the combination of self-assembly and free radical polymerization is an effective method for the preparation of two-dimensional polymer layer materials.
【學位授予單位】：中國科學技術(shù)大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：O633.21

【參考文獻】

相關(guān)期刊論文 前10條

1 孫文兵;;聚苯胺導(dǎo)電材料的制備及表征[J];化工新型材料;2007年04期

2 吳丹;朱超;強驥鵬;王楊勇;;聚苯胺的摻雜及其應(yīng)用[J];工程塑料應(yīng)用;2006年09期

3 景遐斌,王利祥,王獻紅,耿延候,王佛松;導(dǎo)電聚苯胺的合成、結(jié)構(gòu)、性能和應(yīng)用[J];高分子學報;2005年05期

4 于黃中,陳明光,貝承訓,黃河;導(dǎo)電聚苯胺的特性,應(yīng)用及進展[J];高分子材料科學與工程;2003年04期

5 邢雙喜,褚瑩,隋曉萌,王元鴻;以反膠束為模板合成導(dǎo)電聚苯胺[J];東北師大學報(自然科學版);2003年02期

6 生瑜,陳建定,朱德欽,Christian Carrot,Jacques Guillet;二氧化錳化學氧化法合成導(dǎo)電聚苯胺[J];功能高分子學報;2002年04期

7 潘春躍,胡慧萍,馬承銀,黃可龍,黃擁理;苯胺乳液聚合條件的研究[J];應(yīng)用化學;2000年05期

8 顏流水,魏洽,王承宜,劉冬如,馬海永;聚苯胺膜的電化學合成機理及摻雜行為[J];功能材料;2000年05期

9 封偉,韋瑋,吳洪才;聚合方法對聚苯胺導(dǎo)電性能的影響[J];功能材料;1999年03期

10 穆紹林，闞錦晴，張愛光;苯胺在堿性溶液中的電化學聚合和聚合物的性質(zhì)[J];電化學;1996年01期

，

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