WEKO3
アイテム
Structure and dynamics of silica nanoparticles in liquid crystal investigated with synchrotron x-ray radiation
http://hdl.handle.net/2261/50520
http://hdl.handle.net/2261/50520fdc072f7-b5cc-4acb-a09b-06795efadfe4
名前 / ファイル | ライセンス | アクション |
---|---|---|
本文(fulltext) (2.9 MB)
|
|
|
要旨(summary) (265.7 kB)
|
|
Item type | 学位論文 / Thesis or Dissertation(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2012-10-12 | |||||
タイトル | ||||||
タイトル | Structure and dynamics of silica nanoparticles in liquid crystal investigated with synchrotron x-ray radiation | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | nematic liquid crystal colloid | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | anisotropic structure | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | dynamics | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | SAXS | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | Microbeam WAXS | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | XPCS | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | NLC colloids | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | structure | |||||
主題Scheme | Other | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_46ec | |||||
タイプ | thesis | |||||
その他のタイトル | ||||||
その他のタイトル | 放射光X線を用いた液晶中のシリカ・ナノ粒子の構造とダイナミクスの研究 | |||||
著者 |
Zhong, Xu
× Zhong, Xu |
|||||
著者別名 | ||||||
識別子 | 8660 | |||||
識別子Scheme | WEKO | |||||
姓名 | 仲, 旭 | |||||
著者所属 | ||||||
著者所属 | 東京大学大学院新領域創成科学研究科基盤科学研究系物質系専攻 | |||||
著者所属 | ||||||
著者所属 | Department of Adcanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo | |||||
Abstract | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Silica nanoparticles with diameter around 100 nm were dispersed into a nematic liquid crystal 5CB with different volume fractions φ. Differential scanning calorimetry (DSC) was performed to study the nematic to isotropic transition temperature of these nematic liquid crystal colloids. Small angle x-ray scattering (SAXS) was performed to study the structure of silica nanoparticles dispersed in 5CB. Microbeam wide angle x-ray scattering (microbeam WAXS) was performed to study the structure of 5CB in which silica nanoparticles were dispersed. X-ray photon correlation spectroscopy (XPCS) experiment was performed to study the dynamics of silica nanoparticles dispersed in 5CB. DSC reveals that the nematic to isotropic transition temperature of 5CB decreases linearly with increasing φ. SAXS shows that silica nanoparticles contact with each other in these nematic liquid crystal colloids. Microbeam WAXS indicates that 5CB molecules become less oriented with increasing φ, and the peak of scattering profile becomes broader with increasing φ. XPCS shows that relaxation time of these samples increases with increasing φ, and a transition from a stretched exponential behavior for φ equal to 0.3 % to a compressed exponential behavior for φ equal to 5.0 % has been observed. A detailed discussion on experimental results will be given in this thesis. | |||||
書誌情報 | 発行日 2011-09-27 | |||||
日本十進分類法 | ||||||
主題 | 428 | |||||
主題Scheme | NDC | |||||
学位名 | ||||||
学位名 | 修士(科学) | |||||
学位 | ||||||
値 | master | |||||
研究科・専攻 | ||||||
新領域創成科学研究科基盤科学研究系物質系専攻 | ||||||
学位授与年月日 | ||||||
学位授与年月日 | 2011-09-27 | |||||
学位記番号 | ||||||
修創域第4075号 |