教師資料查詢 | 類別: 期刊論文 | 教師: 張朝欽 Chang, Chao-Ching (瀏覽個人網頁)

標題:Preparation and characterization of polyimide–nanogold nanocomposites from 3-mercaptopropyltrimethoxysilane encapsulated gold nanoparticles
學年96
學期1
出版(發表)日期2008/01/01
作品名稱Preparation and characterization of polyimide–nanogold nanocomposites from 3-mercaptopropyltrimethoxysilane encapsulated gold nanoparticles
作品名稱(其他語言)
著者Chang, Chih-ming; Chang, Chao-ching
單位淡江大學化學工程與材料工程學系
出版者London: Elsevier Ltd
著錄名稱、卷期、頁數Polymer Degradation and Stability 93(1), pp.109-116
摘要In this study, we report a new design to prepare polyimide–nanogold nanocomposites of high Au content and good thermal stability. The nanocomposites were prepared from the coupling agent (3-aminopropyltriethoxysilane, APS) capped poly(amic acid) (PAA–APS) and 3-mercaptopropyltrimethoxysilane (MPS) stabilized gold nanoparticles (MPS–Au). The Si–OR groups of MPS on the surface of MPS–Au provided further reaction with APS, hence the covalent bonds between PAA and MPS–Au were formed. PAA–Au was converted into PI–Au nanocomposite by a multiple-step baking. The results of particle-sized analysis show that the sizes of the synthesized MPS–Au from different MPS/Au mole ratios (2 and 0.5) are about 2 nm and 5 nm, respectively. FE-SEM images show that MPS–Au particles are dispersed well in the prepared nanocomposites and no large-scale aggregation occurs. TGA results indicate that the decomposition temperature of each nanocomposite prepared from its washed precursor is lower than that of APS-capped polyimide, but the temperature of maximum decomposed rate of each nanocomposite is higher than that of APS-capped polyimide. The results show the high thermal stability and application potentials of the prepared polyimide–nanogold nanocomposites.
關鍵字Gold nanoparticle;Nanocomposites;Nanogold;Polyimides
語言英文
ISSN0141-3910
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者Chang, Chao-ching
審稿制度
國別英國
公開徵稿
出版型式,電子版,紙本
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!