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研究生: 許銘晉
Ming-Chin Hsu
論文名稱: 以1,6-己二醇二丙烯酸酯/偶氮二異丁腈製備微凝膠之自由基聚合動力學
Free Radical polymerization kinetics of 1,6-hexanediol diacrylate / Azobisisobutyronitrile based microgel particles
指導教授: 陳崇賢
Chorng-Shyan Chern
口試委員: 黃延吉
Yan-Jyi Huang
許榮木
Jung-Mu Hsu
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: 2015
畢業學年度: 103
語文別: 中文
論文頁數: 92
中文關鍵詞: 迷你乳化高分子微凝膠自由基聚合動力學
外文關鍵詞: miniemulsion, polymer, microgel, free radical polymerization, kinetics
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  • 本研究利用示差掃瞄熱分析儀DSC探討1,6-己二醇二丙烯酸酯(1,6-hexanediol diacrylate ,HDDA) /偶氮二異丁腈(Azobisisobutyronitrile, AIBN)之恆溫自由基聚合動力學。利用迷你乳化聚合法以及溶劑如N-甲基咯烷酮(1-Methyl-2-pyrrolidone , NMP)及甲苯(Toluene)之溶液聚合法進行反應。
    由DSC之恆溫動力學數據可得知迷你乳化聚合之活化能大於溶液聚合(NMP、甲苯),且成核模型(Avrami–Erofeyev)最適合描述迷你乳化聚合以及溶液聚合反應。微凝膠的成核及核成長主要發生在成長反應階段。
    研究迷你乳化反應及溶液聚合(NMP)所製備之高分子,進行非恆溫之熱裂解實驗,由兩種方式所製備之高分子熱穩定性相似。並利用模型自由法(Model-free method)來求出熱裂解程序之活化能。


    Isothermal radical polymerization kinetics of 1,6-hexanediol (HDDA)/azobisisobutyronitrile (AIBN) were investigated by using a differential scanning calorimeter (DSC). Miniemulsion polymerization and polymerization in the presence of solvent such as N-methyl-2-pyrrolidone (NMP) and toluene were carried out.
    The DSC data showed that the activation energy of the miniemulsion polymerization is much higher than that of polymerization in NMP (or toluene). The reaction mechanisms for miniemulsion polymerization and solution polymerization involving nucleation (Avrami–Erofeyev) were proposed.The nucleation and subsequent growth of microgel nuclei were primarily governed by the propagation reaction.
    Non-isothermal degradation of resulting polymers obtained from miniemulsion polymerization and polymerization in NMP were studied. The thermal stability of the resulting polymers is similar. Model-free method (isoconversional) was used to determine the activation energy of thermal degradation.

    摘要 I Abstract II 誌謝 III 目錄 IV 圖目錄 VII 表目錄 IX 第一章 緒論 1 1-1乳液的簡介 1 1-2 微凝膠 1 1-3固態動力學模型 3 1-4研究目的 6 第二章 文獻回顧 7 2-1 迷你乳液的安定性 7 2-2 迷你乳液的製備 9 2-3 界面活性劑 9 2-4乳液的分類 10 2-5固態動力學模型 12 2-6 動力學參數 15 2-7 微凝膠簡介 17 2-8 高分子之聚合方式 19 2-8-1 總體聚合(Bulk Polymerization) 19 2-8-2 溶液聚合(Solution Polymerization) 21 2-8-3 懸浮聚合(Suspension Polymerization) 21 2-8-4 乳化聚合(Emulsion Polymerization) 23 第三章 實驗藥品與步驟 26 3-1實驗藥品 26 3-2實驗儀器與設備 30 3-3 實驗流程與步驟 31 3-3-1 HDDA迷你乳液的製備 31 3-3-2乳漿粒徑測量實驗 33 3-3-3溶液聚合樣品配製 33 3-3-4 DSC動力學實驗 33 3-3-5 HDDA高分子的製備 34 3-3-6 TGA裂解溫度測量實驗 35 3-3-7 TEM試片樣品製備流程 36 第四章 結果與討論 37 4-1 恆溫動力學模型的推導 37 4-2 HDDA迷你乳化聚合動力學 40 4-2-1 迷你乳化聚合反應實驗 40 4-2-2 迷你乳化聚合動力學模擬 42 4-3微凝膠成核機制 46 4-4 HDDA迷你乳化高分子粒徑分析 47 4-5 HDDA溶液聚合動力學 51 4-5-1 溶液聚合反應實驗 51 4-5-2 溶液聚合反應動力學模擬 51 4-6 HDDA乳化聚合與溶液聚合動力學參數 59 4-7 模型自由法的推導 61 4-8 HDDA高分子熱穩定性分析實驗 62 第五章 結論 70 參考文獻 72 附錄 75

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