聚四氟乙烯(PTFE，polytetrafluoroethylene)，在含氟聚合物中目前產量排名第一，擁有極高的化學抗性、極低的摩擦係數等特性，成為了現代有用材料，建立了廣泛的應用範圍，卻很少與液態離子液體相關的研究，而離子液體具有低蒸氣壓、高導電性、低揮發性等特性，如果可以找到與聚四氟乙烯相溶的離子液體，在未來的應用將有不錯的貢獻。
本實驗選用離子液體[C2mim][Pf2N]與高分子[PTFE]進行混合，當樣品在不同濃度、不同壓力的條件下，利用FTIR觀察作用力與結構的變化，在常壓環境下當[C2mim][Pf2N]與[PTFE]混合，[Pf2N]的改變比[C2mim]來的明顯，初步推測[PTFE]更偏好與[Pf2N]作用，在高壓環境下隨著離子液體的比例減少，發現在11wt%比例時，光譜上的變化已經與純離子液體不同，尤其是[Pf2N]的部分，確定了[PTFE]偏好與[Pf2N]作用。

Polymer polytetrafluoroethylene, PTFE for short, has high chemical resistance and low friction coefficient compared to other polymers. PTFE is the ranks first in production among fluoropolymers and has lots of properties, PTFE become widely useful materials in polymer applications in the last few decades. Ionic liquids (ILs) have low vapor pressure, high ionic conductivity, and good solubility for polymer. It is interesting to study the IL and PTFE mixture interactions, for PTFE hardly be dissolved by organic solvent but fluorine ionic liquids (FILs).
In this study, 1-ethyl-3-methylimidazolium bis(pentafluoroethylsulfonyl)imide ([C2mim][Pf2N]) was used as FILs to associate with PTFE, and its mixtures were studied by FTIR at high pressure. IR spectra of anion region for [C2mim][Pf2N] were found more different figure structures than cation one as the PTFE was added to it forming [C2mim][Pf2N]-PTFE mixtures. Through specific weight ratio of [C2mim][Pf2N] for [C2mim][Pf2N]-PTFE mixtures (11wt%), it can be concluded that fluorine anion ([Pf2N]-) has more potentially interaction with fluoropolymers (PTFE) at high pressures.

論文大綱 i
1.序論 1
1.1前言 1
1.2離子液體(Ionic Liquids) 2
1.3聚四氟乙烯 3
1.4傅立葉轉換紅外線光譜 4
2.實驗 5
2.1實驗藥品 5
2.1.2 離子液體 5
2.1.3 高分子聚合物 5
2.1.4其他溶劑 6
2.2實驗儀器 7
2.2.1 FTIR(Fourie Transform Infrared Spectroscopy) 7
2.2.2鹽片 8
2.2.3 DAC 8
2.2.4 Inconel墊片 9
2.2.5 CaF2 9
2.2.6精密萬能鑽孔機 10
2.2.7實體顯微鏡 10
2.2.8超音振盪機 11
2.2.9打片機/KBr die/瑪瑙研缽及杵/KBr 11
2.2.10水分分析儀 13
2.2.11分析天秤 13
2.3實驗步驟 14
2.3.1樣品配置 14
2.3.2常壓實驗 15
2.3.3高壓實驗 17
2.3.4壓力校正 21
2.3.5數據分析 23
3.結果與討論 25
3.1離子液體[C2mim][PF2N]與高分子[PTFE] 25
3.1.1常壓實驗 25
3.1.2高壓實驗 29
3.1.3高壓趨勢圖 37
3.2離子液體[C2mim][PF2N]與高分子[PMMA] 43
3.2.1常壓實驗 43
3.2.2高壓實驗 47
3.2.3高壓趨勢圖 53
4.結論 59
5.參考文獻 61

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