Synthesis, characterization of new bisphenol-based benzoxazines and the thermal properties of their polymers

Li Shengfang; Yang Chenglu; Li ChenYan Shilin

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Synthesis, characterization of new bisphenol-based benzoxazines and the thermal properties of their polymers

机译：Synthesis, characterization of new bisphenol-based benzoxazines and the thermal properties of their polymers

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New bisphenol-based benzoxazines (BBA-a and BBA-bra) were synthesized from bisphenol containing trityl group, paraformaldehyde, aniline and 2,4,6-tribromoaniline by a solventless method. The chemical structure of the monomers was analyzed by FTIR, H-1 NMR and elemental analysis. FTIR and differential scanning calorimetry (DSC) indicated that the polymerization of BBA-a and BBA-bra was thermally initiated and occurred via ring opening of benzoxazine monomers. Comparing with that of BBA-a, the curing exothermic peak of BBA-bra shifted from 230 to 245 A degrees C. Thermogravimetry (TG) showed that PBZ from BBA-a and BBA-bra (named as PBBA-a and PBBA-bra, respectively) had superior thermal stability. The char yields of PBBA-a and PBBA-bra at 800 A degrees C were 42.37 and 48.30, respectively.

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来源
《Journal of thermal analysis and calorimetry》 |2017年第3期|1711-1717|共7页
作者
Li Shengfang; Yang Chenglu; Li ChenYan Shilin;
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作者单位

Hubei Polytech Univ, Sch Chem & Chem Engn, Huangshi 435003, Peoples R China;

Wuhan Univ Technol, Sch Mat Sci & Engn, Whuhan 430070, Peoples R China;

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正文语种英语
中图分类物理化学（理论化学）、化学物理学;
关键词
Benzoxazine; Bisphenol; Polymerization; Thermal stability;

Synthesis, characterization of new bisphenol-based benzoxazines and the thermal properties of their polymers

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