- 學位論文
苯胺三聚體及四聚體合成電活性環氧樹酯在防腐蝕的比較性研究
Comparative Studies on Corrosion Protection Effect of Epoxy Coating Containing Electroactive Aniline Trimer and Tetramer
摘要
本篇論文主要是合成不同共軛鏈長之寡聚物衍生之電活性環氧樹酯，並探討其在防腐蝕的比較性研究，研究重點放在導入不同共軛鏈段的苯胺三聚體及四聚體，比較不同共軛鏈長對於電活性環氧樹酯在基本物性及防腐蝕應用上的研究。 本研究利用氧化偶合一步合成法來合成苯胺三聚體（ACA-Trimer）及苯胺四聚體（ACA-Tetramer），然後再分別以環氧樹酯（Bisphenol A diglycidyl ether，DGEBA）及T-403當作固化劑，開環聚合製備電活性苯胺三聚體環氧樹酯（EATE）及電活性苯胺四聚體環氧樹酯（EARE）。並以減弱全反射傅利葉轉換紅外線光譜儀（ATR-FTIR）、質譜儀（Mass）及液態核磁共振儀（NMR）來鑑定苯胺三聚體及四聚體的結構，而電活性苯胺三聚體環氧樹酯（EATE）及電活性苯胺四聚體環氧樹酯（EARE）則是以減弱全反射傅利葉轉換紅外線光譜儀（ATR-FTIR）來加以鑑定。 在本研究中，針對電活性苯胺三聚體環氧樹酯（EATE）及電活性苯胺四聚體環氧樹酯（EARE）材料在熱性質、電活性與防腐蝕（CV、Tafel、EIS）方面做了一系列的比較性研究，結果顯示電活性苯胺四聚體環氧樹酯（EATE）較電活性苯胺三聚體環氧樹酯（EARE）在熱性質及防腐蝕能力均具有較佳之表現。
並列摘要
The various oligomeric derivatives of electroactive epoxy with different conjugated chain length were synthesized and characterized in this study. The physical and anti-corrosiveness properties of electroactive aniline trimer epoxy were compared with the electroactive aniline tetramer epoxy. The influence of electroactive epoxy with different conjugated chain length on anti-corrosiveness was discussed in this study. The Amino-Capped Aniline Trimer (ACA-trimer) and Amino-Capped Aniline Tetramer (ACA-tetramer) were synthesized by oxidative coupling polymerization and blended with bisphenol A diglycidyl ether(DGEBA) and the hardener， T-403. The electroactive aniline trimer epoxy (EATE) and electroactive aniline tetramer epoxy (EARE) were prepared by the polymerization of the compositions mention above. FTIR-ATR、 Mass、 NMR were utilized to identify the chemical structures of ACA-trimer and ACA-tetramer. The reactions of the EATE and EARE were determined by FTIR-ATR and the anti-corrosiveness of EATE and EARE were measured by CV、Tafel and EIS. In this study，the result of thermal， electroactive and anti-corrosiveness properties of EATE and EARE were discussed. Compare to EATE， EARE revealed the better performance of thermal and anti-corrosiveness.