本研究利用苯胺的氧化聚合機制，在弱酸的聚合環境配合block copolymer F127使苯胺氧化產物通過自組裝的方式形成具有特殊形態的模板該形態為葉片狀、花狀以及樹枝狀，進一步利用FTIR及UV-vis鑑定分子結構並發現這些具有特殊結構的寡聚物含有吩嗪的結構造成分子鏈段缺陷從而影響聚苯胺的導電性質造成不導電的結果，並由MALDI-TOF得知片狀，樹枝分子量分別為530、671。最後通過在酸性環境裡將不同形態的模板合成導電聚苯胺，得到具有2.75S/cm葉片狀、1.27S/cm花狀、3.21S/cm樹枝狀的聚苯胺改善了不導電的缺點。最後利用不同形態葉片狀、花狀、樹枝狀、線狀混摻環氧樹脂製備防蝕塗料，發現線狀、樹枝狀、葉片狀及花狀聚苯胺對塗料鈍化層防蝕效率提升分別為82.481%、83.802% 、65.816%及62.703%

One of the common ways to enhance the efficiency of anti-corrosion is integrating polyaniline into the layer of epoxy coating on metals. However, the current literature usually adopts polyaniline without considering its morphology. In this study, we aim to investigate whether the controlled morphology of polyaniline will affect the efficiency of carbon steel in anti-corrosion. Since the morphology of polyaniline cannot be controlled in acidic solution, we first synthesize oligoaniline in weak acidic solution via chemical oxidative polymerization. By adopting surfactant F127, nanostructure-based plate-like, flower-like, and branch-like oligoaniline are synthesized successfully. The molecular structures verified with FTIR and UV-vis, nonetheless, are found to contain phenazine structures that will affect the conductivity properties of the oligoaniline. Hence, we use the synthesized oligoaniline as templates to develop polyaniline in the acidic solution. As shown in the results, the conductivity rate of plate-like, flower-like, and branch-like oligoaniline are improved to 2.75S/cm, 1.27S/cm, and 3.21S/cm, respectively. In conclusion, the results show that the rates of anti-corrosion for branch-like, plate-like, and flower-like polyaniline are 83. 80%, 65.82%, and 62.70% respectively.

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