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Preparation of CaCO3?Polymer Composites by Bio-inspired Control Crystallization
http://hdl.handle.net/10212/2256
http://hdl.handle.net/10212/22566446692e-4bda-4fdf-9fcc-9aeeda4fbf76
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全文 (4.1 MB)
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内容・審査結果の要旨 (324.5 KB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||||
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| 公開日 | 2017-07-03 | |||||||||
| タイトル | ||||||||||
| タイトル | Preparation of CaCO3?Polymer Composites by Bio-inspired Control Crystallization | |||||||||
| 言語 | en | |||||||||
| その他のタイトル | ||||||||||
| その他のタイトル | バイオインスパイアード制御結晶化方法による炭酸カルシウム―ポリマー複合材料の調製 | |||||||||
| 言語 | ja | |||||||||
| 作成者 |
西尾, 隆
× 西尾, 隆
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| アクセス権 | ||||||||||
| アクセス権 | open access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Biomineralization | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Calcium carbonate | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | In-situ mineralization | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Lyotropic liquid crystal | |||||||||
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| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | All aromatic polyamide | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Poly(p-phenylene-sulfoterephthalamide) | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Gas diffusion method | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Alternate soaking process | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Hydrogel | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Composite materials | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Crystal morphology | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Growth from solutions | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Photodecarboxylation | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Ketoprofen | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | 2-(3-Benzoylphenyl)propionic acid | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Poly(vinyl alcohol) | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Carbon dioxide hydration | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Spheroidal calcite | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Mesocrystals | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Ultraviolet irradiation | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | Natural composite materials produced by living organisms such as teeth, bone, nacre, and eggshells have attracted significant interest over the last few decades because such materials seem to provide new pathways for producing light-weight materials with excellent mechanical properties. In spite of the intensive works, further investigation is still required for understanding the mechanism behind natural biomineralization processes as well as the development novel industrial applications based on the bio-inspired techniques. This thesis describes the bio-inspired control crystallization of CaCO3 under the participation of hydrophilic polymers at the points of the development of novel composite materials as well as the development of novel methods for the morphological control of CaCO3. In a general introduction part, the author has introduced the reviews about biominerallization, CaCO3, crystallography, and the current status of biomimetic approaches, and has described the outline of this thesis. In Part 1 (Chapter 1), poly(p-phenylene-sulfoterephthalamide) (PPST), which has a lyotropic liquid crystalline (LC) nature in water, was used to a template mineralization of CaCO3 for the preparation of CaCO3-all aromatic polyamide composites. The alternate soaking process induced the formation of plate-like calcite mesocrystals at the hydrogel/solution interface, and cubic mesocrystals in the inner space of the hydrogel. The obtained composites are the first example that CaCO3-all aromatic polyamide composites with ordered structures of LC matrix and CaCO3 were prepared through in situ mineralization. In Part 2 (Chapter 2 & Chapter 3), a photoinduced crystallization of CaCO3, which takes advantage of the photodecarboxylation of ketoprofen (KP, 2-(3-benzoylphenyl)propionic acid) in the homogeneous precursor solutions, in which a partially hydrolyzed poly(vinyl alcohol) maintained the homogeneity of the solution by preventing the salt formation of Ca2+ and KP, was investigated. The fundamental concept behind this study concerns the development of the technique controlling the transportation of CO32?. This is the first example of the application of KP in the control crystallization of CaCO3. In Chapter 2, the UV irradiated samples under the alkaline condition at pH 10 were lyophilized. Ca2+ were completely converted to nanometer-to-micron sized calcite in the PVAPS matrix by photodecarboxylation of KP under UV irradiation for 50 min. The present results demonstrate a possibility for the photoinitiated site-selective crystallization of CaCO3 in a polymer matrix to fabricate designable composite materials. In Chapter 3, the UV irradiated samples under alkaline conditions (pH 8.4 and 10) were centrifuged for the preparation of CaCO3 composite particle in single digit micrometer sizes. As the result, spheroidal calcite composites, which contained organic components of about 10 wt%, were obtained at pH 8.4. The comparison of the characteristics of CaCO3 composites obtained at the different alkaline conditions suggests that the aggregation-based crystal growth in the presence of PVAPS seemed to enable the formation of the spheroidal composites of calcite in single digit micrometer sizes. | |||||||||
| 言語 | en | |||||||||
| 日付 | ||||||||||
| 日付 | 2015-03-25 | |||||||||
| 日付タイプ | Issued | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||||
| 資源タイプ | doctoral thesis | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 学位授与番号 | ||||||||||
| 学位授与番号 | 甲第737号 | |||||||||
| 学位名 | ||||||||||
| 言語 | ja | |||||||||
| 学位名 | 博士（工学） | |||||||||
| 学位授与年月日 | ||||||||||
| 学位授与年月日 | 2015-03-25 | |||||||||
| 学位授与機関 | ||||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||||
| 学位授与機関識別子 | 14303 | |||||||||
| 言語 | ja | |||||||||
| 学位授与機関名 | 京都工芸繊維大学 | |||||||||
