具胺基封端苯胺三聚體之電活性聚醯胺之合成及其在作為防腐蝕及電致變色塗料之應用研究

Synthesis, Corrosion Protection and Electrochromic Properties of Novel Electroactive Polyamide Containing Amine-capped Aniline Trimer

林素吟(Su-Yin Lin)

指導教授 ： 葉瑞銘

中原大學/理學院/化學研究所/碩士(2010年)

https://doi.org/10.6840/cycu201000563

摘要

本論文主要利用苯胺三聚體所合成的電活性聚醯胺對其物性的影響，以及在電致變色材料和防腐蝕塗料上的應用。
首先利用氧化偶合一步法合成穩定的半氧化半還原態之胺基封端苯胺三聚體(ACAT)，接著利用熱縮合法將長碳鏈結構之二酸((adipic acid(4)與sebacic acid(8))分別進行聚醯胺的合成。首先，強調的是本研究為首次合成出具高強度電活性聚醯胺的薄膜。並以動態機械分析儀(DMA)確認其儲存模量(storage modulus)在室溫下約可達~ 3GPa，較大部份文獻發表之聚醯胺強約50%之強度，成功克服以往電活性聚醯胺聚合度不佳，不易成膜之缺陷。
接著，導入非電活性鏈端(BAPP)，製備出一系列不同比例之非電活性聚醯胺、電活性聚醯胺及其共聚醯胺，探討具電活性共軛鏈段之聚醯胺在材料上對光學性質、電活性、熱性質、機械性質之基本特性變化；進一步利用循環伏特安培儀結合紫外光-可見光光譜儀探討電活性聚醯胺薄膜於電致變色顯示器材料上特性，以及利用電化學腐蝕量測技術來系統性的探討電活性聚醯胺應用於金屬(如:冷軋鋼)防腐蝕塗料之實際應用效益。

關鍵字

苯胺三聚體 ； 聚醯胺 ； 電致變色 ； 防腐蝕

並列摘要

In this paper, we present the first study of synthesizing electroactive polyamide containing amine-capped aniline trimer (ACAT) and evaluate their potential application in anticorrosion/electrochromic coating materials.
First of all, amine-capped aniline trimer (ACAT) was synthesized by using one-step oxidative coupling reaction and characterized by 1H-NMR, FTIR and MS. Subsequently, ACAT monomers were reacted with two types of diacids by using polycondensation reactions to give series of electroactive polyamides and characterized by 1H-NMR, FTIR and GPC.
It should be noted that the electroactive polyamide coating exhibited good corrosion protection and electrochromic performance onto cold-rolled steel (CRS) and indium tin oxide (ITO) electrode, respectively, based on series of electrochemical corrosion and spectroelectrochemistry measurements.
Mechanical strength, thermal stability, optical properties and electrical conductivity of free-standing electroactive polyamide membranes was investigated by dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), UV-visible absorption spectroscopy and four-point probe technique, respectively.

並列關鍵字

aniline trimer ； polyamide ； electroactive ； electrochromic ； corrosion

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