請用此 Handle URI 來引用此文件: http://hdl.handle.net/11455/41175
標題: Development of an aromatic triamine-based flame-retardant benzoxazine and its high-performance copolybenzoxazines
作者: Chang, C.W.
林慶炫
Lin, C.H.
Lin, H.T.
Huang, H.J.
Hwang, K.Y.
Tu, A.P.
關鍵字: Benzoxazine
Thermosets
Flame retardancy
High-T(g)
ring-opening polymerization
epoxy-resins
thermal characterization
curing behavior
bisphenol-a
polybenzoxazines
phosphorus
monomers
nanocomposites
composites
期刊/報告no:: European Polymer Journal, Volume 45, Issue 3, Page(s) 680-689.
摘要: An aromatic triamine-based flame-retardant benzoxazine (3), which could not be prepared by the traditional approaches, was successfully prepared by a three-step procedure. The first step is the condensation of 2-hydroxybenzaldehyde with an aromatic triamine, forming intermediate (1) with an imine linkage. The second step is the reduction of the imine linkage by sodium borohydride, resulting in intermediate (2) with a secondary amine linkage. The third step is the ring closure condensation of (2), leading to benzoxazine (3). The structures of (1-3) were confirmed by IR, high-resolution mass, (1)H and (31)P NMR spectra. Benzoxazine (3) was copolymerized with commercial benzoxazines. According to the measurements, thermal properties, flame retardancy, dimensional stability of commercial polybenzoxazines were significantly improved via the incorporation of (3). (C) 2009 Elsevier Ltd. All rights reserved.
URI: http://hdl.handle.net/11455/41175
ISSN: 0014-3057
文章連結: http://dx.doi.org/10.1016/j.eurpolymj.2008.12.020
顯示於類別:化學工程學系所

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