Synthesis and thermal properties of the thermosetting resin based on cyano functionalized benzoxazine

被引：81

作者：

Cao, G. P. ^{[1
]}

Chen, W. J. ^{[1
]}

Liu, X. B. ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Inst Microelect & Solid State Elect, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China

来源：

POLYMER DEGRADATION AND STABILITY | 2008年 / 93卷 / 03期

关键词：

thermosetting resins; thermally activated polymerization; thermal properties; cyano functionalized benzoxazine;

D O I：

10.1016/j.polymdegradstab.2007.10.002

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 novel thermosetting resin based on cyano functionalized benzoxazine (BZCN) has been synthesized from 2,6-bis(4-diaminobenzoxy)benzonitrile phenol and formaldehyde by solution reaction. The structure of the monomer is supported by FTIR, H-1 NMR and C-13 NMR spectra, which have exhibited that the reactive benzoxazine rings and cyano group exist in the molecular structure of BZCN. The curing reactions of BZCN are monitored by the disappearance of the nitrile peak and the tri-substituted benzene ring that is attached with oxazine ring peak at 2231 and 930 cm(-1), respectively. The complete cured materials could achieve char yields up to 70% at 800 degrees C in nitrogen atmosphere, above 64% at 600 degrees C in air (20% oxygen) environments and the glass transition temperature tip to 250 degrees C. The thermally activated curing polymerization reaction of BZCN follows multiple polymerization mechanisms via the ring-opening polymerization of oxazine rings and the triazine ring-formation of cyano groups, which contribute to the stability of the polymer. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：739 / 744

页数：6