Curing behaviors and properties of allyl- and benzoxazine-functional phthalonitrile with improved processability

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• 作者：Xingqiang Zou ; Xulin Yang ; Mingzhen Xu ; Kun Jia ; Xiaobo Liu
• 关键词：Blends ; Copolymers ; Thermal properties ; Viscosity ; Mechanical ; Properties
• 刊名：Journal of Polymer Research
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：23
• 期：1
• 全文大小：2,269 KB
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• 作者单位：Xingqiang Zou (1)
  Xulin Yang (1) (2)
  Mingzhen Xu (1)
  Kun Jia (1) (2)
  Xiaobo Liu (1) (2)
  
  1. Research Branch of Functional Materials, Institute of Microelectronic & Solid State Electronic, High-Temperature Resistant Polymers and Composites Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu, 610054, People鈥檚 Republic of China
  2. R&D Department Center of High-performance New Materials, Guangdong Shunde Great New Materials Company Ltd, Foshan, 528303, People鈥檚 Republic of China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Polymer Sciences
  Industrial Chemistry and Chemical Engineering
  Characterization and Evaluation Materials
  
• 出版者：Springer Netherlands
• ISSN：1572-8935

文摘

Allyl-functional phthalonitrile monomer (DBPA-Ph) was blended with the phthalonitrile containing benzoxazine (BPNBZ) to achieve good processing property with low curing viscosity. The processing behavior of BPNBZ/DBPA-Ph system was studied by differential scanning calorimetric analysis (DSC) and dynamic rheological analysis. The result indicated that the BPNBZ/DBPA-Ph system exhibited relatively low viscosity, good reactivity and processing property. The similar thermal and thermo- stabilities of DBPA-Ph and BPNBZ polymer endued the BPNBZ/DBPA-Ph system stable thermal (T _5% 鈮?nbsp;437 掳C) and thermo- stabilities (T _5% 鈮?nbsp;449 掳C) with the change of BPNBZ content. Compared with the poor mechanical property of pure DBPA-Ph/GF composites, the introduction of BPNBZ enhanced the mechanical property of BPNBZ/DBPA-Ph/GF composites distinctly, especially at low curing temperature. Therefore, the low viscosity, good polymerization property, stable thermal and thermo- stabilities and improved mechanical property indicated wider application for DBPA-Ph polymer. Keywords Blends Copolymers Thermal properties Viscosity Mechanical Properties