Effect of phenol substitution on the network structure and properties of linear aliphatic diamine-based benzoxazines

被引：89
作者：
Allen, Douglas J. [1 ]
Ishida, Hatsuo [1 ]
机构：
[1] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA
来源：
POLYMER | 2009年 / 50卷 / 02期
关键词：
Polybenzoxazine; Aliphatic diamine-based benzoxazine; Network structure; ZERO SHRINKAGE POLYBENZOXAZINES; RING-OPENING POLYMERIZATION; RESINS; NANOCOMPOSITES; GELATION;
D O I：
10.1016/j.polymer.2008.11.007
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A series of aliphatic diamine-based benzoxazines with different phenolic substitutions have been synthesized and characterized. Molecular structure of the monomers is verified by H-1 and C-13 NMR, FTIR, and elemental analysis. The site of polymerization is regiospecified and the type of linkage in the network structure is manipulated by selectively blocking the ortho, para, and meta positions in the aromatic rings of the monomer. The controlled network structures and their properties are compared to those formed by the polymerization of aliphatic diamine-based benzoxazines prepared from unsubstituted phenol in order to provide insight into their structures. Investigation on the melting point, polymerization kinetics, gelation, and T-g and sub-T-g thermal transition is all reported on these systematically controlled structure polybenzoxazines. (C) 2008 Elsevier Ltd. All rights reserved.
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收藏
页码：613 / 626
页数：14
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