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研究生:林文雁
研究生(外文):Wen-Yan Lin
論文名稱:水溶性幾丁聚醣之物理分析與流變探討
論文名稱(外文):The Study on physical analyze and Rheological of water-soluble Chitosan Solutions
指導教授:芮祥鵬芮祥鵬引用關係
口試委員:戴子安程耀毅
口試日期:2012-07-13
學位類別:博士
校院名稱:國立臺北科技大學
系所名稱:有機高分子研究所
學門:工程學門
學類:化學工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:77
中文關鍵詞:幾丁聚醣流變學重疊濃度黏彈性質
外文關鍵詞:ChitosanRheologyOverlap concentrationviscoelastic properties
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幾丁質(chitin)為天然聚合物,具有良好特色的物理特性,生物降解,生物相容性,無毒性。而幾丁聚醣(chitison)是幾丁質去乙醯化(Deacetylated),在生醫材料方面為重要的應用高分子,但不溶於水只溶於酸,如甲酸、醋酸及乳酸等,使得幾丁聚醣的發展有所限制。
因此本篇論文藉由Glycidyltrimethylammonium Chloride改值幾丁聚醣。並將不溶於水的幾丁聚醣和改質後的GTMAC系殼聚醣利用微管是震盪流變儀(V-E System)來量測此動態黏彈性質。利用Maxwell模型敘述幾丁聚醣(CS)水溶液。由儲存模數(G’)和損耗模數(G”)的交叉點隨CS的濃度增加往低頻率的區域移動。提出了Maxwell進行模擬。令人關注的是,G’和G”的交叉點不會隨著GTMAC水溶液的濃度而改變,進一步求出重疊濃度C *;最後將GTMAC的幾丁聚醣藉由高分子濃度、離子強度和溫度等因素來研究流變行為,由實驗數據進而了解其物理性質。


Chitosan with well-characterized biological properties natural polymer,The biodegradation, biocompatibility, and nontoxic. Chitosan (chitison) Chitin deacetylation (Deacetylated),an important application of polymer biomaterials , butinsoluble in water only soluble in acid , such as formic acid , acetic acid and lactic acid,thus making the development of chitosan to be limited.
. In this study, chitosan was synthesized with Glycidyltrimethylammonium Chloride The dynamic viscoelastic property of water-soluble GTMAC chitosan and water-insoluble chitosan were measured by oscillation rheometer (VE System) .
A simple Maxwell Model accurately describes a regular chitosan (CS) solution. The G’, G” crossover shifted toward lower frequencies as the CS concentration increased. A modified Maxwell Model. Interestingly, the crossover of G’ and G” was found to be independent of the GTMAC chitosan concentration,Further calculated the overlap concentration, C*. Finally,Studies have also reported that the rheological behavior of GTMAC chitosan depends on the polymer concentration、 ionic strength and the temperature, to understand their physical properties from experimental data concentration.


摘 要 I
ABSTRACT II
誌 謝 III
圖目錄 VII
表目錄 X
第一章 緒論 1
1.1前言 1
1.2研究動機 3
第二章 文獻回顧 4
2.1幾丁聚醣的發現 4
2.2幾丁聚醣來源及化學結構 4
2.3幾丁聚醣的製備 7
2.4水溶性幾丁聚醣的衍生物 9
2.5幾丁聚醣的應用 12
2.6 液體之流動性質 13
2.6.1流體種類 13
2.6.2幾丁聚醣水溶液流變學之線性黏彈性質 15
2.6.3幾丁聚醣水溶液流變學之非線性黏彈性質 16
第三章 實驗 17
3.1 理論 17
3.1.1流變學簡介 17
3.1.2 Maxwell Model 19
3.1.3重疊黏度 21
3.1.4 Martin equation 22
3.1.5 溶膠凝膠轉換臨界濃度之測定 23
3.2實驗儀器 24
3.2.1 傅立葉轉換紅外線光譜儀(FTIR) 24
3.2.2核磁共振儀(NMR) 25
3.2.3元素分析儀(EA) 26
3.2.4凝膠滲透色譜儀(GPC) 27
3.2.5 奧斯瓦黏度計 28
3.2.6微管式震盪流變儀(V-E 30
3.2.7 Physica 流變儀 32
3.3實驗藥品 錯誤! 尚未定義書籤。
3.4實驗流程 34
3.4.1 合成GTMAC系 幾丁聚醣 34
第四章 結果與討論 36
4.1 GTMAC 幾丁聚醣合成鑑定 36
4.1.1 FTIR 分析 36
4.1.2 NMR 分析 37
4.1.3 GPC 分析 38
4.1.4 EA分析 39
4.2 一般幾丁聚醣與GTMAC幾丁聚醣之流變性質探討 40
4.2.1一般幾丁聚醣與GTMAC系幾丁聚醣之重疊黏度 40
4.2.2一般幾丁聚醣與GTMAC系幾丁聚醣之動態黏彈性質 45
4.2.3一般幾丁聚醣與GTMAC幾丁聚醣實驗與理論的模數值差異 55
4.2.4一般幾丁聚醣與GTMAC幾丁聚醣之溶膠凝膠狀態轉換的探討 62
4.3 一般幾丁聚醣與GTMAC系幾丁聚醣之物理性質探討 67
4.3.1 GTMAC系幾丁聚醣加入NaCl 67
4.3.2 GTMAC系幾丁聚醣之溫度效應 70
第五章 結論 73
第六章 參考文獻 73


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