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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 廖文彬 | |
| dc.contributor.author | Hung-Jen Shih | en |
| dc.contributor.author | 施閎仁 | zh_TW |
| dc.date.accessioned | 2021-06-15T02:32:04Z | - |
| dc.date.available | 2021-12-31 | |
| dc.date.copyright | 2011-08-20 | |
| dc.date.issued | 2011 | |
| dc.date.submitted | 2011-08-17 | |
| dc.identifier.citation | 1.Shaoyong Huang, Shichun Jiang, Xuesi Chen, and Lijia An. Langmuir 2009, 25(22), 13125–13132
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43898 | - |
| dc.description.abstract | 本研究主要探討小分子量的左旋聚乳酸(PLLA)與非結晶性聚乳酸(PLA)的混摻物薄膜的結晶型態。小分子量聚乳酸薄膜經過等溫結晶的處理後會形成不同於傳統球晶的型態，隨著結晶溫度的改變，高分子薄膜的結晶型態會跟著改變。利用光學顯微鏡OM觀察其結晶型態的轉變，並利用原子力顯微鏡AFM觀察其結晶晶片生長的型態，最後我們發現晶片生長的偏好影響了最後結晶的型態。
另外，我們摻入了不同比例的非結晶性高分子PDLLA，藉由改變玻璃轉移溫度、平衡熔點以及可結晶相的體積分率，觀察結晶形態對熱力學參數之間的關係。 | zh_TW |
| dc.description.abstract | This study focused on low molecular weight poly-L-lactic acid (PLLA) and amorphous poly lactic acid (PDLLA) thin films of blends of crystalline material type. After the isothermal crystallization process, low molecular weight poly(l-lactic acid) film will form the pattern which is different from the traditional spherulite. With the crystallization temperature changes, the crystallization patterns of polymer film will change accordingly. Observed using optical microscope (OM) crystal morphology changes, and the use atomic force microscope (AFM) to observe the crystal growth of lamellae patterns, and finally we found that the preferences of the lamellae growth pattern affect the morphology.
In addition, we blended with different ratios of non-crystalline polymer PDLLA, by changing the glass transition temperature, the equilibrium melting point and crystalline phase volume fraction, observed how crystalline morphology change by thermodynamic parameters. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T02:32:04Z (GMT). No. of bitstreams: 1 ntu-100-R97549035-1.pdf: 1722788 bytes, checksum: 1afc3668eb5ba81af8826ef0564b7849 (MD5) Previous issue date: 2011 | en |
| dc.description.tableofcontents | 口試委員會審定書........................................ii
誌謝...................................................iii 中文摘要................................................iv 英文摘要.................................................v 目錄....................................................vi 圖目錄................................................viii 表目錄..................................................xi 第一章 緒論..............................................1 第二章 文獻回顧與理論....................................2 2-1 聚乳酸簡介...........................................2 2-1-1 生物可分解性(biodegradability)高分子簡介...........2 2-1-2 聚乳酸的製造與應用.................................3 2-1-3 聚乳酸的結晶結構...................................4 2-2 高分子結晶理論 ......................................7 2-2-1 高分子總體結晶.....................................7 2-2-2 Hoffman-Lauritzen Theory...........................9 第三章 實驗.............................................17 3-1 實驗材料............................................17 3-2 實驗儀器............................................18 3-3 實驗方法............................................20 3-3-1 左旋聚乳酸的合成..................................20 3-3-2 聚乳酸的合成 ......................................20 3-3-3 矽片的預處理 ......................................21 3-3-4 高分子薄膜的製備..................................21 第四章 結果與討論.......................................24 4-1 小分子量PLLA與PDLLA的相容性與熱力學行為.............24 4-1-1 平衡熔點測量 .....................................25 4-1-2 PLLA/PDLLA混摻系統的相容性........................28 4-2 薄膜結晶速率........................................34 4-3 小分子量PLLA與PDLLA聚摻合物薄膜結晶型態.............41 4-3-1 不同溫度區間的PLLA/PDLLA薄膜混摻結晶型態..........41 4-3-2 PLLA/PDLLA薄膜結晶樹枝狀結構......................44 第五章 總結.............................................65 參考文獻................................................66 | |
| dc.language.iso | zh-TW | |
| dc.subject | 左旋聚乳酸 | zh_TW |
| dc.subject | 高分子薄膜 | zh_TW |
| dc.subject | 結晶型態 | zh_TW |
| dc.subject | 聚消旋乳酸 | zh_TW |
| dc.subject | PLLA | en |
| dc.subject | PDLLA | en |
| dc.subject | thin film | en |
| dc.subject | morphology | en |
| dc.title | 摻雜非結晶性聚乳酸對左旋聚乳酸薄膜結晶型態之影響 | zh_TW |
| dc.title | Effect of blending with amorphous PLA on the morphology of PLLA thin film | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 99-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 邱文英,童世煌 | |
| dc.subject.keyword | 左旋聚乳酸,聚消旋乳酸,結晶型態,高分子薄膜, | zh_TW |
| dc.subject.keyword | PLLA,PDLLA,morphology,thin film, | en |
| dc.relation.page | 67 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2011-08-17 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 高分子科學與工程學研究所 | zh_TW |
| 顯示於系所單位： | 高分子科學與工程學研究所 | |
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