Enhancing the toughness of epoxy resin by using a novel hyperbranched benzoxazine

In this study, a novel hyperbranched benzoxazine (HB-PED230) was synthesized from the reaction of Jeffamine D230, 1,1,1-tris(4-hydroxyphenyl)ethane and paraformaldehyde through the simple one-step Mannich condensation reaction. The characteristic structure of oxazine ring in HB-PED230 was confirmed...

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Veröffentlicht in:	Reactive & functional polymers 2021-07, Vol.164, p.104920, Article 104920
Hauptverfasser:	Cai, Wanan, Yuan, Zhigang, Wang, Zhicheng, Guo, Zhiyi, Zhang, Lili, Wang, Jun, Liu, Wenbin, Tang, Tao
Format:	Artikel
Sprache:	eng
Schlagworte:	Benzoxazines Chemical synthesis Copolymerization Copolymers Epoxy Epoxy resins Ethane Flexural strength Fracture toughness Hyperbranched benzoxazine Impact strength Mechanical properties Modulus of rupture in bending NMR Nuclear magnetic resonance Phase separation Resins Scanning electron microscopy Studies Thermal properties Thermal stability Thermosetting resins Toughness
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