Polymerization of p-cresol, formaldehyde, and piperazine and structure of monofunctional benzoxazine-derived oligomers

被引:13
|
作者
Chutayothin, Papinporn [1 ]
Ishida, Hatsuo [1 ]
机构
[1] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA
关键词
Piperazine; Benzoxazine; Phosphorus NMR; P-31; NMR-SPECTROSCOPY; HIGH-PERFORMANCE POLYBENZOXAZINES; MAIN-CHAIN; WOOD CHEMISTRY; MECHANICAL CHARACTERIZATION; POLYMERS; RESINS; PRECURSORS; THERMOSETS; MOIETIES;
D O I
10.1016/j.polymer.2011.07.006
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
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.
引用
收藏
页码:3897 / 3904
页数:8
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