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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 王建隆 | zh_TW |
| dc.contributor.advisor | Chien-Lung Wang | en |
| dc.contributor.author | 陳詩詠 | zh_TW |
| dc.contributor.author | Shih-Yung Chen | en |
| dc.date.accessioned | 2026-03-05T16:16:36Z | - |
| dc.date.available | 2026-03-06 | - |
| dc.date.copyright | 2026-03-05 | - |
| dc.date.issued | 2026 | - |
| dc.date.submitted | 2026-02-03 | - |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/101863 | - |
| dc.description.abstract | 可變形性（deformability）被視為自組裝系統通往結構複雜化的重要途徑。基於此，本研究以樹枝狀兩親性分子為模型，透過引入疏水外殼鏈長不對稱性，賦予 Frank–Kasper（FK）σ 相中超分子微胞可調控之各向異性變形能力；此一形變自由度可緩解局部空間填充挫折，因而在實驗上實現並穩定 FK σ 相。結果顯示，過度不對稱之 AD1 僅形成典型球狀相 bcc；相對地，適度不對稱之 AD2 可形成具各向異性的 FK σ 相，其繞射強度呈現區域與取向依賴性。各向異性 Debye–Waller 因子模擬進一步支持該強度差異源自微胞層級的形變與取向選擇。進一步引入疏水客體十二烷可補償外殼空缺並關閉變形能力，使σ相轉為各向同性 bcc。綜上，可變形性可作為可調控之結構參數以主導晶格對稱性與相變行為，並提供設計具適應性與階層化複雜組裝體之策略基礎。 | zh_TW |
| dc.description.abstract | Deformability has been regarded as a key pathway by which self-assembling systems access higher structural complexity. Here, dendritic amphiphiles were used as a model platform, where chain-length asymmetry in the hydrophobic corona was introduced to endow supramolecular micelles in the Frank–Kasper (FK) σ phase with a tunable anisotropic deformation capability. This additional shape freedom alleviates local packing frustration, enabling the experimental realization and stabilization of the FK σ phase. The results show that excessively asymmetric AD1 forms only the conventional spherical bcc phase, whereas moderately asymmetric AD2 yields an anisotropic FK σ phase with pronounced spatial- and orientation-dependent diffraction intensities. Simulations using an anisotropic Debye–Waller factor further support that these intensity variations originate from micelle-level deformation and orientation selection. Moreover, incorporation of a hydrophobic guest (dodecane) compensates the corona voids and switches off deformability, converting the σ phase into an isotropic bcc phase. Collectively, these findings establish deformability as a tunable structural parameter that governs lattice symmetry and phase transitions, and provide a design basis for adaptive, hierarchically complex supramolecular assemblies. | en |
| dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2026-03-05T16:16:36Z No. of bitstreams: 0 | en |
| dc.description.provenance | Made available in DSpace on 2026-03-05T16:16:36Z (GMT). No. of bitstreams: 0 | en |
| dc.description.tableofcontents | 口試委員審定書 i
誌謝 ii 摘要 iii Abstract iv 目次 v 圖次 viii 式圖次 xii 表次 xiii 第一章 緒論 1 1.1 超分子化學 1 1.2 嵌段共聚物 (block copolymer) 2 1.2.1 組成不對稱性 (compositional asymmetry, fA) 2 1.2.2 構象不對稱性 (conformational asymmetry, ε) 3 1.3 樹枝狀分子及巨型分子 (dendritic and giant molecules ) 6 1.4 Frank-Kasper相 10 1.4.1 FK相之形成機制 10 1.4.2 不同分子體系所形成σ相之比較 11 1.4.3 不同的FK相穩定機制之探討 13 第二章 研究動機 15 第三章 實驗結果與討論 17 3.1 分子合成 17 3.2 分子化學結構鑑定 18 3.2.1 AD1 分子 18 3.2.2 AD2 分子 21 3.3 AD1之分子結構鑑定 24 3.3.1 相行為分析及結構鑑定 24 3.3.2 無法形成FK相之原因探討 27 3.4 AD2之分子結構鑑定 28 3.4.1 相行為分析及結構鑑定 28 3.4.2 與SD所形成σ相之差異探討 32 3.5 AD2及SD之σ相單軸 (single-zone) 結構解析 34 3.5.1 AD2及SD單晶σ相訊號強度比 (intensity ratio) 差異 34 3.5.2 模擬繞射之自變參數選擇與數據分析 35 3.6 AD2長時間放置 (aging) 之結構演變 39 3.7 調控AD2 微胞的形變能力 43 第四章 結論 46 第五章 實驗部分 47 5.1 試藥來源 47 5.2 量測儀器 47 5.2.1核磁共振儀（Nuclear Magnetic Resonance Spectrometer, NMR） 47 5.2.2 質譜儀（Mass Spectrometer） 48 5.2.3 熱差掃描卡計（Differential Scanning Calorimetry, DSC） 49 5.2.4 小角X光散射儀（Small Angle X-ray Scattering, SAXS） 49 5.2.5 廣角X光散射儀（Wide Angle X-ray Scattering, WAXS） 49 5.2.6 Microbeam二維小角X光散射儀 (Microbeam 2D Small Angle X-ray Scattering，Microbeam 2D-SAXS) 50 5.2.7 光學顯微鏡（Optical Microscope, OM） 50 5.3 分子合成 51 5.3.1 Methyl 3,4,5-Tris(octyloxy)benzoate之合成 51 5.3.2 3,4,5-Tris(octyloxy)benzoic acid之合成 52 5.3.3 Methyl 3,4,5-Tris(decyloxy)benzoate之合成 53 5.3.4 3,4,5-tris(decyloxy)benzoic acid之合成 54 5.3.5 Methyl 3,4,5-tris(tetradecyloxy)benzoate之合成 55 5.3.6 3,4,5-Tris(tetradecyloxy)benzoic acid之合成 56 5.3.7 Methyl 3,4,5-Tris(hexadecyloxy)benzoate之合成 57 5.3.8 3,4,5-tris(hexadecyloxy)benzoic acid之合成 58 5.3.9 Compound 1a之合成 59 5.3.10 AD1之合成 60 5.3.11 compound 1b之合成 61 5.3.12 AD2之合成 62 5.4 繞射模擬方法 63 5.4.1 以Cerius2模擬之二維單軸繞射圖譜 63 5.4.2 以Materials studio模擬之一維粉末繞射圖譜 64 第六章 參考資料 66 第七章 附錄 73 7.1 結構鑑定 73 7.2 AD2樣品分析 79 7.3晶帶方程式 (zonal equation) 80 | - |
| dc.language.iso | zh_TW | - |
| dc.subject | Frank-Kasper相 | - |
| dc.subject | 超分子自組裝 | - |
| dc.subject | 鏈長不對稱性 | - |
| dc.subject | 形變能力 | - |
| dc.subject | 各向異性 | - |
| dc.subject | Frank–Kasper phase | - |
| dc.subject | self-assembly | - |
| dc.subject | chain-length asymmetry | - |
| dc.subject | deformability | - |
| dc.subject | anisotropy | - |
| dc.title | Frank–Kasper σ 相中超分子微胞變形能力的調控 | zh_TW |
| dc.title | Switchable Deformability of Supramolecular Micelles in the Frank–Kasper σ Phase | en |
| dc.type | Thesis | - |
| dc.date.schoolyear | 114-1 | - |
| dc.description.degree | 碩士 | - |
| dc.contributor.oralexamcommittee | 李弘文;林智敏;莊偉綜 | zh_TW |
| dc.contributor.oralexamcommittee | Hung-Wen Li ;Jhih-Min Lin;Wei-Tsung Chuang | en |
| dc.subject.keyword | Frank-Kasper相,超分子自組裝鏈長不對稱性形變能力各向異性 | zh_TW |
| dc.subject.keyword | Frank–Kasper phase,self-assemblychain-length asymmetrydeformabilityanisotropy | en |
| dc.relation.page | 80 | - |
| dc.identifier.doi | 10.6342/NTU202600453 | - |
| dc.rights.note | 同意授權(全球公開) | - |
| dc.date.accepted | 2026-02-04 | - |
| dc.contributor.author-college | 理學院 | - |
| dc.contributor.author-dept | 化學系 | - |
| dc.date.embargo-lift | 2026-03-06 | - |
| 顯示於系所單位： | 化學系 | |
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