| Summary: | 碩士 === 國立臺灣大學 === 化學工程學研究所 === 88 === Abstract
The aim of this study is to synthesize low molecular weight PANI for improving its solubility. The low molecular weight PANI can be copolymerized with polyurethane prepolymer to form polyurea coplymer. The copolymer was then direct doping with acid, the mechanical property of the resulting copolymer was slightly improved. Furthermore, The Linear blend and Semi Interpenetrating Polymer Networks(Semi-IPNs) of PU-co-PANI/PU were prepared in order to improve the mechanical property of the resulting polymer.
The Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry(DSC) , thermogravimetric analysis(TGA),tensile property, scanning electron microscope(SEM) dynamic mechanical analysis(DMA),surface resistivity measurement were performed to investigate mechanical properties, thermal properties, compatibility, surface resistivity and hydrogen bonding of the resulting linear blends and Semi-IPNs.
The surface resistivity is much higher than PANI as the PU content increase in the PU-PANI' linear blends or Semi-IPNs. The surface resistivity of the resulting PANI-containing polymers is about 107~1010Ω/sq which is still much lower than pure PU about 1016Ω/sq.The surface resistivity of high PANI-containing Semi-IPNs and linear blends can meet the requirement of the anti-electrostatic materials with the resistivity of 107~1010Ω/sq.The tensile strength of high the value of PANI-containing semi-IPNs and linear blends has been improved and reached the 9.9MPa.
Keyword: Polyaniline, Polyurethane, Interpenetrating Polymer Networks, linear blend, anti-electrostatic
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