非이온 界面活性劑를 利用한 Poly (p-phenylene)의 合成과 그 電氣傳導 特性 = Synthesis of poly(p=phenylene)using nonionic surfactant and its electrically conductive property

국문 초록 (Abstract)

非이온 界面活性劑를 使用하여 벤젠과 觸媒로서 鹽化알루미늄, 鹽化제이구리와 少量의 助觸媒로 使用되는 물系로부터 傳導性 Poly-(P-Phenylene) (PPP)을 合成하였으며 이 非이온 界面活性劑가 重合反應에 미치는 影響을 檢討하였다. 郎 非이온 界面活性劑가 PPP의 熱的性質과 電氣傳導度에 끼치는 影響을 檢討하기 위하여 Polyoxyethylene nonylphenyl ether(HLB;4, 8, 14)인 非이온 界面活性劑와 여러가지의 重合條件 下에서 PPP를 合成하여 融點, 重量減少 始作溫度, 分解溫度 等 그 熱的性質과 傳導度를 測定하였으며 또한, PPP에 K 및 Na으로 Solution doping을 하여 電氣傳導度를 測定하였다. 그 結果 PPP의 重合反應에 界面活性劑를 利用 함으로서 從前보다 매우 좋은 熱的性質과 傳導度의 向上을 가져왔으며 다음과 같은 結論을 얻었다.
1. 重合反應時 非이온 界面活性劑를 利用하면 PPP의 融點이 增加하여 從來方法에서 얻은 融點보다 最高 60℃ 程度의 融點差異를 나타내었다.
2. 重合反應時 非이온 界面活性劑 使用으로 PPP의 傳導度는 10^(-7)Ω^(-1)㎝^(-1)까지 增加되어 從來方法에서 얻은 電氣傳導度보다 3次數 程度 向上되었다.
3. Doping後 最高博導度는 Na dope의 境遇 y값이 0.495, K dope의 境遇 y값이 0.277일 때 各各 8.95×10^(3)Ω^(-1)㎝^(-1), 7.11×10^(3)Ω^(-1)㎝^(-1)되어 金屬程度의 높은 傳導度를 나타냄으로서 傳導性 高分子 材料로서 實用性이 있는 것으로 나타났다.
4. 非이온 界面活性劑를 使用하여 合成된 PPP의 電氣傳導度는 그 使用된 界面活性劑의 HLB값이 增加함에 따라 PPP의 熱的性質 및 電氣傳導度가 向上되었다.
5. Na dope의 境遇가 K으로 dope한 것보다 電氣傳導度가 높았다.
6. 重合溫度 80℃에서 非이온 界面活性劑의 HLB값이 14인 Polyoxyethylene nonylphenyl ether를 使用하여 얻어진 PPP가 本 硏究의 範圍 內에서 가장 좋은 熱的特性과 가장 높은 電氣傳導度를 나타내었다.

다국어 초록 (Multilingual Abstract)

Electrically conducting polymer, poly (P-Phenylene) (PPP) was synthesized by the polymerization of benzene with aluminum trichloride and cupric chloride as cationic catalyst, and a small amount of water as co-catalyst, nonionic surfactants such as polyoxyethylene nonylphenyl ether (HLB, 4), polyoxyethylene nonylpheyl ether (HLB, 8), polyoxyethylene nonylphenyl ether (HLB, 14).
To investigate the effect on nonionic surfactants used in reaction system, the thermal properties as melting point, decomposition temperature by oxidation for PPP were measured by DSC and TGA, and electrical conductivity was measured by a 4-point probe method. poly (p-phenylene) was doped with potassium and sodium using the solution doping method, and the electrical conductivity was determined, then it was compared with that of undoped poly (p - phenylene).
The summerized results of experiments are as follows;
1. The melting point of poly (p - phenylene) Prepared using nonionic surfactants was increased to 560℃, and when compared with PPP Prepared by conventional method, there was a difference in melting point as 60.
2. The electrical conductivity of PPP Prepared using the nonionic surfactants increased three orders, comparing with PPP Prepared not using nonionic surfactants.
3. In the case of maximum electrical conductivity of PPP doped with K or Na, Y value amounting to 0.495 and 0.277, the maximum electrical conductivity appeared 8.95 × 10^(3)Ω^(-1) ㎝^(-1), 7.11× 10^(3)Ω^(-1) ㎝ respectively. Therefore PPP is considered as -1 -1 conducting polymer material with future utility.
4. Poly (p - phenylene) doped with Na had more electrical conductivity than K
5. As HLB value of nonionic surfactant increased, thermal Properties and electrical conductivity were impoved.
6. Poly (p - phenylene) Prepared using HLB value (14) of nonionic surfactant at polymerization temperature (80℃) had the best thermal properties and conductivity.

목차 (Table of Contents)

• 목차 = ⅰ
• 國文要約 = ⅵ
• Ⅰ. 緖論 = 1
• Ⅱ. 實驗 = 8
• Ⅱ-1. 試藥 = 8
• Ⅱ-2. 實驗 方法 = 9
• Ⅱ-2-1. Poly(P-Phenylene)(PPP)의 重合 = 9
• Ⅱ-2-2. IR 分光分析 = 11
• Ⅱ-2-3. 反應混合物의 電子顯微鏡 觀察 = 11
• Ⅱ-2-4. 示差走査 熱量分析 (DSC) = 11
• Ⅱ-2-5. 熱重量分析 (TGA) = 11
• Ⅱ-2-6. Poly(P-Phenylene)의 Doping = 12
• Ⅱ-2-7. 電氣傳導度 測定 = 13
• Ⅲ. 結果 및 考察 = 15
• Ⅲ-1. Poly(P-Phenylene)의 反應性 = 15
• Ⅲ-2. Poly(P-Phenylene) 重合反應混合物의 分散狀態 = 20
• Ⅲ-3. IR Spectrum에 依한 構造確認 = 23
• Ⅲ-4. DSC를 利用한 熱的特性 = 25
• Ⅲ-5. TGA를 利用한 熱的特性 = 32
• Ⅲ-6. Poly(P-Phenylene)의 電氣傳導性 = 40
• Ⅳ. 結論 = 54
• REFERENCES = 56
• ABSTRACT = 62
• Appendices = 64