研究生: |
陳勇助 Yong-Jhu Chen |
---|---|
論文名稱: |
具有多顏色及高穩定電致變色特性之新型多支鏈高分子材料 Multicolor and Highly Stable Electrochromism of Novel Hyperbranched Polymers |
指導教授: |
陳耀騰
Yaw-Terng Chern |
口試委員: |
陳志堅
Jyh-Chien Chen 曾文琪 Wen-Chi Tseng 蕭勝輝 Sheng-Huei Hsiao 劉貴生 Guey-Sheng Liou |
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: | 2012 |
畢業學年度: | 100 |
語文別: | 中文 |
論文頁數: | 153 |
中文關鍵詞: | 電致變色 |
外文關鍵詞: | Electrochromism |
相關次數: | 點閱:201 下載:5 |
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開發新的含4個或8個三苯胺側基的聚醯胺與聚醯亞胺電致變色材料,這些新的聚合物薄膜有相對高的軟化溫度(165~231℃),在氮氣下10%重量損失時溫度高於420℃,這些結果顯示這些材料有好的熱穩定性。這些多支鏈聚合物呈現可逆電化學氧化與電致變色特性,這些特性包括高的對比,高的著色效率,短的應答時間和非常好的電活性穩定性,例如含4個三苯胺單元的聚醯胺,在第一階氧化態在NIR呈現高對比(△T% = 66%),高的著色效率(CE = 367 cm2/C)與非常好的電活性穩定性(經過20000次開關測試,它的著色效率只衰減2.47%),另外在施加電壓0.0到1.2V,這些電致變色材料也呈現多顏色變化特性,例如含8個三苯胺側基聚醯胺,在施加電壓由0到1.2V,它的顏色從中性態無色或很淡黃色到氧化態的黃色、黃綠色、綠色、靛色與藍色。
The electrochromic polyamides and polyimides with four or eight triarylamine side groups were synthesized. These new polymers exhibited good thermal stability associated with their relatively high softening temperature (165~231℃), 10% weight-loss temperature in excess 420℃, and char yield at 80℃ in nitrogen higher 57%. The polymer films showed reversible electrochemical oxidation and electrochromism with high contrast ratio both in the visible range and NIR region, which also exhibited high coloration efficiency (CE), short switching time, and excellent electroactive stability. For example, the polyamide containing four triarylamine units revealed high coloration efficiency and contrast of optical transmittance change (△T%) in NIR region (CE = 367 cm2/C and 66%, respectively) with excellent electroactive stability (more than 20000 cyclic switches within 2.47% decay) at the first oxidation stage. In addition, the polymer films also revealed multicolor of electrochromic characteristic. For example, the polyamides containing eight triphenylamine units showed multicolor characteristic, with a color change from colorless or pale yellowish neutral form to yellow, yellow-green, green, indigo and blue oxidized
form at applied potentials ranging from 0.00 to 1.20V.
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