By using a secondary amine, e g. piperazine, a Mannich base polymer, having similar structure to the traditional polybenzoxazine, is synthesized. Unlike all the reported polybenzoxazines that are colored, the white polymer shows good thermal property that is close to the degradation temperature of the polybenzoxazine derived from difunctional benzoxazine monomers. P-31 NMR spectroscopy in combination with facile phosphorus derivatization and previous model compound studies are utilized to clarify the structures of piperazine-based systems as well as the main chain and end group of traditional polybenzoxazines. (C) 2011 Elsevier Ltd. All rights reserved.
机构:Washington Univ, Sch Med, Dept Biochem & Mol Biophys, St Louis, MO 63110 USA
Cunane, LM
Chen, ZW
论文数: 0引用数: 0
h-index: 0
机构:Washington Univ, Sch Med, Dept Biochem & Mol Biophys, St Louis, MO 63110 USA
Chen, ZW
McIntire, WS
论文数: 0引用数: 0
h-index: 0
机构:Washington Univ, Sch Med, Dept Biochem & Mol Biophys, St Louis, MO 63110 USA
McIntire, WS
Mathews, FS
论文数: 0引用数: 0
h-index: 0
机构:
Washington Univ, Sch Med, Dept Biochem & Mol Biophys, St Louis, MO 63110 USAWashington Univ, Sch Med, Dept Biochem & Mol Biophys, St Louis, MO 63110 USA
机构:
Amer Univ Sharjah, Dept Chem Engn, POB 26666, Sharjah, U Arab EmiratesAmer Univ Sharjah, Dept Chem Engn, POB 26666, Sharjah, U Arab Emirates
Ibrahim, Taleb Hassan
El Sayed, Yehya Amin
论文数: 0引用数: 0
h-index: 0
机构:
Amer Univ Sharjah, Dept Chem Biol & Environm Sci, POB 26666, Sharjah, U Arab EmiratesAmer Univ Sharjah, Dept Chem Engn, POB 26666, Sharjah, U Arab Emirates