標題: Glass transition temperatures of epoxy modified with pendent nano-organic rigid-rod compounds
作者: Lin, S. P.
Han, J. L.
Chen, R. Z.
Yeh, J. T.
Chang, F. C.
Hsieh, K. H.
應用化學系
Department of Applied Chemistry
關鍵字: epoxy;nano-scale;rigid-rod compound;self-reinforced;thermal properties
公開日期: 1-十一月-2007
摘要: Pendent nanoscale organic rigid-rod compounds are molecular fiber-like materials that can be used to reinforce the polymer matrix. In this study, 4,4'-diphenylmethane diisocyanate (MDI) was used to covalently connect a number of organic rigid-rod compounds [4'-hydroxyphenyl-4-hydroxy-benzoate (HPHB), phenyl 4-hydroxybenzoate (HPB), 4,4'-isopropylidenediphenol (BSPA), and 2-naphthol (NPT)] to the secondary hydroxyl groups of the epoxy resin. These reactions were monitored using Fourier transform infrared (FTIR) spectroscopy; the products were characterized using nuclear magnetic resonance (NMR) spectroscopy. The glass transition temperatures of the organic rigid-rod compounds modified epoxy resins were investigated through differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA). Thermogravimetric analysis (TGA) was used to detect the values of Td and the thermal stabilities of the polymers.
URI: http://dx.doi.org/10.1080/00222340701629257
http://hdl.handle.net/11536/10150
ISSN: 0022-2348
DOI: 10.1080/00222340701629257
期刊: JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS
Volume: 46
Issue: 6
起始頁: 1205
結束頁: 1218
顯示於類別:期刊論文


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