電活性高分子材料之製備及其作為氣體分離薄膜與防腐蝕塗料之應用研究

Preparation and Application Studies of Electroactive Polymer Functioned as Gas Separation Membranes and Anticorrosion Coatings

蘇佑安(Yu-An Su)

指導教授 ： 葉瑞銘

中原大學/理學院/化學系/碩士(2008年)

https://doi.org/10.6840/cycu200800485

摘要

本實驗主要是研究電活性高分子材料之製備及其性質研究，而研究方向則分為兩部份，第一部份為拉電子基苯胺共聚物之製備及其作為氣體分離薄膜之應用研究。
藉由添加中性鹽類的方式進行氧化聚合法，成功合成出一系列高分子量、高機械強度之拉電子基苯胺共聚物，並探討三種氣體(O2、N2、CO2)，在不同溫度下比較高分子薄膜的氣體滲透量、氣體選擇率與活化能的變化。
先藉由減弱式全反射傅立葉轉換紅外線光譜、核磁共振光譜儀與元素分析儀進行高分子材料的結構鑑定；利用凝膠滲透層析可得知其分子量的變化。接著，以薄膜密度測量可知高分子薄膜內的空隙變化，並藉由氣體滲透分析儀測量出材料的氣體滲透率與氣體選擇率。最後，並利用熱重分析儀與動態機械分析儀觀察材料之熱性質與機械性質的變化。
第二部份為電活性環氧樹脂/二氧化矽奈米複合材料之製備及其作為防腐蝕塗料之應用研究。
首先利用循環伏安儀量測出添加苯胺三聚體的環氧樹脂具有電活性且其防腐蝕的效果較佳；將二氧化矽導入至電活性環氧樹脂中，並藉由減弱式全反射傅立葉轉換紅外線光譜確定電活性環氧樹脂/二氧化矽奈米複合材料成功地被製備出來，在性質方面，則以循環伏安儀、電化學阻抗、氣體透過率分析儀、反射式傅利葉轉換紅外線光譜儀與接觸角量測進行一系列金屬防腐蝕與氣體阻隔性質之量測；綜合所有量測結果顯示，隨著二氧化矽的含量增加之電活性環氧樹脂奈米複合材料確實能有效提升整體的防腐蝕性能、氣體阻隔性質。

關鍵字

氣體分離 ； 溶膠凝膠法 ； 防腐蝕 ； 電活性高分子

並列摘要

This work reports the preparation and application studies of electroctive polymer, and this thesis can be mainly divided into two parts.
The first part reports the free-standing membrane, a serious of electron withdrawing group substitution aniline and its dervivatives copolymer. Those membranes which have been characterized by Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR), 1H-Nuclear magnetic resonance (1H-NMR), element analyzer (EA), gel permeation chromatography (GPC), UV-Visible and Conductivity via addition CaCl2/HCl(aq) by chemical oxidation polymerization, and the latter were shown the characteristic distinctly increasing in permeability for a series gases, such as O2, N2, CO2. This phenomenon could be ascribed to a loose packing of molecules result from the substituent on the polymer backbone. Herein, the feed composition with o-alkoxyaniline of as-prepared copolymer could be easily adjusted the permeability of membranes. Moreover, the influences of these changes on the properties of copolymers, like thermal and mechanical, were studied, respectively.
The second part, epoxy was characterized by Cyclic Voltammetry (CV) to known addition aniline trimer could be increased elctroactive and corrosion protection. Then, electroactive epoxy-silica have been characterized by ATR-FTIR, acceded to elctroactive epoxy It should be noted that the electroactive epoxy-silica coatings based on a series of electrochemical corrosion parameter measurements such as corrosion potential, polarization resistance, corrosion current and electrochemical impedance spectroscopy (EIS). Effects of material composition on the mechanical strength and thermal stability of as-prepared electroactive epoxy-silica coatings were also investigated by dynamic mechanical analyzer (DMA), differential scanning calorimetry (DSC) and thremogravimetric analyzer (TGA), respectively.

並列關鍵字

Electroactive polymer ； Gas separation ； Sol-Gel ； Corrosion

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