研究生: |
張群 Chun - Chang |
---|---|
論文名稱: |
合成新型含三苯胺及雜環結構之聚醯胺與聚醯亞胺及其性質研究 Synthesis and Characterization of New Polyamides and Polyimides with Triphenylamine and Heterocyclic Groups |
指導教授: |
陳燿騰
Yaw-Terng Chern |
口試委員: |
賴森茂
Sen-Mao Lai 樺沐怡 Mu-Yi Hua |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 化學工程系 Department of Chemical Engineering |
論文出版年: | 2009 |
畢業學年度: | 97 |
語文別: | 中文 |
論文頁數: | 55 |
中文關鍵詞: | 三苯胺 、聚醯胺 、聚醯亞胺 |
外文關鍵詞: | Triphenylamine, Polyamide, Polyimide |
相關次數: | 點閱:313 下載:4 |
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一系列含有硫之雜環與含氧之雜環取代基之新穎的三苯胺二胺基單體已經被成功合成,有著雜環的聚醯胺與聚醯亞胺是從新型的二胺基單體分別與二酸和二酸酐進行合成所得,所有的聚醯胺與大部分的聚醯亞胺對極性有機溶劑具有良好的溶解度,可以塗佈成具韌性薄膜,它們的軟化溫度介於222~ 365 oC之間,在氮氣下損失 10 % 重量在 500 oC以上,在氮氣下加熱至 800 oC時仍殘留62 %以上的焦炭,顯示它們具有良好的熱安定性。CV 圖均會顯示一對可逆的氧化還原峰,聚醯胺的Eonset介於0.89 ~ 0.9 V之間,而聚醯亞胺的Eonset在1.05 ~ 1.08 V的範圍內。,由電化學的數據可估算聚醯胺與聚醯亞胺的 HOMO 值各在 5.25 ~ 5.26 eV和5.41 ~ 5.45 eV之間,且會從中性態的淺黃色變化成氧化態的綠色。
Two novel diaminetriphenylamines containing benzothiazole and benzoxoazole were synthesized. Polyamides and polyimides with heterocycle moieties were prepared from the newly synthesized diamine monomer with various aromatic dicarboxylic acids and tetracarboxylic dianhydrides, respectively. All the polyamides and most of the polyimides were readily soluble in polar organic solvents and could be cast into tough and flexible films. Polyamides and polyimides had good thermal stability associated with high softening temperatures (222 ~ 365 oC), 10 % weight loss temperatures in excess of 500 oC, and char yield at 800 oC in nitrogen higher than 62 %. Cyclic voltammograms of the polyamides and polyimides showed one pair of reversible redox waves with oxidation onset potentials in the range of 0.89-0.9 and 1.05-1.08 V. The HOMO energy levels of polyamides and polyimides were in the range from 5.25 ~ 5.26 eV and 5.41 ~ 5.45 eV. The color of the polyamides was changed from pale yellow to green.
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