奈米光電及複合材料之研究

A study of nano-optoelectronics and nanocomposites

鄭景中(Ching-Chung Cheng)

指導教授 ： 廖義田

國立臺北科技大學/工程學院/有機高分子研究所/碩士(2008年)

摘要

奈米複合材料所加入的蒙特土必須逹到剝離的狀態， 才能使物性逹到最佳的狀態， 本研究利用自由基不終止聚合反應， 合成出
4-(N,N-Diethyldithiocarbamylmethyl)benzyltrimethylammonium 作為我們蒙脫土pk-802 的改質劑使之改質成為新由性的有機黏土，並加入壓克力酸使蒙脫土達到剝離的狀態再加入不同之高分子中(PMMA.PCL)使之成為奈米複合材料並研究其性質。再以FTIR利用FTIR去看是否有混合，X-ray 鑑定是否達到剝離及萬能試驗機測試拉伸性質研究其物性是否提升，再利用DSC去觀看Tg是否有移動。
共軛高分子具導電及發光之特性，而且poly-thiophene 因其電子的特性跟熱穩定性使其成為導電高分子中重要的代表，本實驗藉由改變poly-thiophene 的結構，導入矽氧烷成為thiophene 的側鏈基，以FTIR以及NMR鑑定合成之單體，比較接上矽氧烷基數量的不同(0.3)以TGA及DSC來探討其熱穩定性質，也由UV 發現poly-thiophene 具有溫變色的效果。 此材料在發光二極體及具發展性。

關鍵字

奈米複合材料聚塞吩 ； 自由基不終止反應

並列摘要

The clay nanocomposites are exfoliate will have the best quality. The clay are exfoliated by living free radical polymerization . They are added into PMMA and PCL . Their mechanical properties are investigated .We used FT-IR ,X-ray ,DSC to investigate the properties. The tensile strengths and wear properties increased significantly .
A conjugate polymer polythiophene is alsosynthesized in this research. We used hexamethylcyclotrisiloxane to change the structure of poly-thiophene. The thermochromic behavior is studied by UV. It is found that the thermochromic behavior is different for polymers possessing different molecular weights.

並列關鍵字

Nanocomposites ； polythiophene

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