Synthesis of novel boron containing benzoxazine and its thermal properties with epoxy resin blends

CHEN Yang; SHI Tiejun; QIAN Ying; HE Tao

doi:10.11949/j.issn.0438-1157.20161816

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Synthesis of novel boron containing benzoxazine and its thermal properties with epoxy resin blends

更新时间：2025-12-10

- Synthesis of novel boron containing benzoxazine and its thermal properties with epoxy resin blends
- CIESC Journal Issue 6, Pages: 2604-2610(2017)
- 作者机构：
  
  合肥工业大学化学与化工学院,安徽,合肥,230009
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161816
  CLC： 631
- Online First：05 June 2017，
  
  Published：05 June 2017
- 稿件说明：
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CHEN Yang, SHI Tiejun, QIAN Ying, et al. Synthesis of novel boron containing benzoxazine and its thermal properties with epoxy resin blends[J]. CIESC Journal, 2017, (6): 2604-2610.
DOI：

CHEN Yang, SHI Tiejun, QIAN Ying, et al. Synthesis of novel boron containing benzoxazine and its thermal properties with epoxy resin blends[J]. CIESC Journal, 2017, (6): 2604-2610. DOI： 10.11949/j.issn.0438-1157.20161816.

摘要

以乙醇胺、硼酸为原料合成硼酸乙醇胺酯（BAE），再用所得硼酸乙醇胺酯与多聚甲醛、苯酚反应，合成含硼苯并噁嗪（BAE-BOZ）。将所得BAE-BOZ高温固化，BAE-BOZ和环氧树脂E-51按照不同的质量比进行熔融共混，并经高温固化。采用FT-IR，1H NMR 和13C NMR等分析了BAE-BOZ的化学结构，证明了产物为目标产物；采用DSC对BAE-BOZ的固化特性进行研究；采用TG 分析了含硼乙醇胺型苯并噁嗪poly（BAE-BOZ）和BAE-BOZ/E-51共聚物的热稳定性。结果表明：BAE-BOZ在218℃出现了固化峰；BAE-BOZ的硼含量达到8.67%，在N2条件下，poly（BAE-BOZ）的热分解温度为302℃，在426℃时热分解速率最快，800℃的残炭率为58.08%，与未经硼改性的乙醇胺型苯并噁嗪（E-BOZ）相比，热分解温度提高40℃，残炭率提高了16.28%；BAE-BOZ/E-51共聚物的热分解温度达到343℃，热性能得到进一步提高。

Abstract

The boric acid ethanolamine ester (BAE) was synthesized using boric acid and ethanolamine. The synthesis of benzoxazine contained boron (BAE-BOZ) was synthesized by using BAE

phenol and paraformaldehyde. The BAE-BOZ are mixed with epoxy resin in different proportions

and then cured by high temperature. Using FT-IR

1H NMR and 13C NMR analysis of the chemical structure of BAE-BOZ

proved that the target product has been synthesized. Curing properties on BAE-BOZ was studied with DSC

the thermal stability of poly(BAE-BOZ) cured BAE-BOZ/E-51 were studied by using TG analysis. The results showed that the curing peak of BOZ appeared at 218℃

B and oxazine ring were combined by B O C

and the highest the boric content in BAE-BOZ was 8.67%

the initial pyrolysis temperature was about 302℃

and the carbon residual at 800℃ increased from 41.80% to 58.08%. The thermal decomposition temperature of BAE-BOZ/E-51 copolymer reached 343℃.

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