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奈米金在聚苯乙烯與聚2-環氧乙烷丁烯團聯共聚物的排列與應用

The Arrangement and Application of Gold Nanoparticles in Polystyrene-block-Polybutadiene Epoxidation

作者:楊泓穎
畢業學校:國立中山大學
出版單位:國立中山大學
核准日期:2010-07-29
類型:Electronic Thesis or Dissertation
權限:Copyright information available at source archive--National Sun Yat-sen University....

中文摘要

利用團聯共聚物具有規則排列特性再加入奈米金屬本身帶有的特殊光、電、磁 物理性質,將兩種優點都展現出來的奈米金屬嵌段共聚體複合材料是目前很熱門的研究,可以有許多應用價值。
我們主要討論奈米金粒子在團聯共聚物內部的排列與自組裝的結果之後再探討其應用性,在第一個實驗中將2-phenylethanethiol為保護基的奈米金粒子分散在Polystyrene block Polybutadiene Epoxidation
簡稱(PS-b-PB-E)共聚物微交聯的薄膜上,我們發現在相同金含量下兩種不同方式製作奈米金屬嵌段共聚體複合材料有不同的結果。經由微交聯的PS-b-PB-E再將奈米金以滲透法進入薄膜內部可以產生較分散(segregation)的結果,比起直接將奈米金與PS-b-PB-E混摻來的更好,利用UV-VIS、TEM、SAXS等儀器都可以證明此結果。
第二個實驗主要是為了製作多孔隙的金電極,多孔性金電極可以使用在許多方面,例如催化、選擇性通透功能、燃料電池電極上。 我們使用PS-b-PB-E的球狀微胞為模板,將微胞表面反應上硫醇(S-H)官能基,再利用至換保護基法將奈米金分散在微胞表層,最後經由熱處理步驟得到多孔性金電極材料。

英文摘要

This study uses the combination of block copolymer and metal nanoparticles to array ordered structure and specific physical properties such as optics, electricity and magnetism. In this first part, 2-phenylethanethiol was used as the monolayer-protected gold nanoparticles (nps) and dispersed in block copolymer PS-b-PB-E thin film. Two different methods are compared, the first method was PS-b-PB-E thin film by partial crosslinked treatment then the 2-phenylethanethiol of monolayer-protected gold nanoparticles soaked into PS-b-PB-E thin film. The second method was blended gold nps within PS-b-PB-E directly. We found that the first method was better than second method which had arrangement dispersedly. The analyses of UV-VIS, TEM, and SAXS measurement are able to provide the positive evidence to characterize the dispersion of gold nps in diblock copolymer thin film.
In the second part, we design to manufacture the multi-nanoholes golden electrode, which has many application in catalysis, selective transit function and fuel cell electrode. We use the PS-b-PB-E copolymer as the spherical micelle, which is the templates and then micelle surface reaction in mercaptane (S-H) function. Gold nps will use the exchange stabilizing ligands method in the micelle surface layer, and the porous gold electrode material by way of the heat treatment step.


召集委員 - 陳明

指導教授 - 郭紹偉

委員 - 洪金龍

委員 - 蔣酉旺


 

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