Preparation of Polymer Template by Dispersion Polymerization for Implantation of Organic Precursors

• Main Authors: Wei-Cheng Lin, 林威呈
• Other Authors: Wenjea J. Tseng
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/74945442274104128262

碩士 === 國立中興大學 === 材料科學與工程學系所 === 98 === In this study, we use styrene as a main component to synthesize four polymeric organics. The polymers prepared are then used as a template for the fabrication of nanostructured metal oxides. By adding divinylbenzene (DVB), acrolein (ACR), 3-trimethoxysilyl propyl methacrylate (MPS), and butyl methacrylate (BMA) respectively in the polymerization of styrene, four co-polymers, i.e., PS-DVB, PS-ACR, PS-MPS and PS-BMA, have been synthesized through dispersion polymerization. Structure and morphology of the synthesized co-polymers are examined by Fourier-transform infrared spectrometry (FTIR), Raman spectrophotometry, electron microscopy (EM), and solid-state nuclear magnetic resonance spectrometry (SSNMR). The activation energy for the polymerization of PS-DVB copolymer is also estimated experimentally over a range of reaction temperatures. The prepared co-polymers are then tested for metallic “implantation” in organic solvent. To be more specific, iron chloride is used as the metal precursor, and is mixed with the polymeric templates in tetrachloroethylene solvent. Among the four co-polymers synthesized, only the PS-BMA co-polymer appears to be possible. We then further synthesize poly(styrene-co-butylmethacrylate-co-glycidylmethacrylate) (PS-BMA-GMA) to serve as a template for the preparation of iron oxide. Nanostructured iron oxide is resulted after calcination at 600oC in air atmosphere for removal of the organic template. The oxide structure is characterized by EM and X-ray diffractometry (XRD), while the metallic implantation is confirmed by the depth profile analysis of electron spectroscopy for chemical analysis (ESCA).