典型文献
Flexible Self-healing Cross-linked Polyamides Synthesized Through Bulk Michael Addition,Polycondensation,and Diels-Alder Reaction
文献摘要：
Three new thermally responsive self-healing cross-linked polyamides(cPA-FU-Das)with good tensile strength and toughness were synthesized through bulk Michael addition,polycondensation,and Diels-Alder reaction.Unlike common stable polymers,cPA-FU-Das can seal cracks by mere heating.First,the Michael addition of methyl acrylate and furfurylamine was conducted,and a furfurylamine-diester(FU-DE)was prepared.FU-DE was transformed into polyamide prepolymers that contained furfuryl pendant groups(PA-Fus)through bulk polycondensation with a poly(propylene glycol)(PPG)diamine and a PPG triamine.PA-Fus were crosslinked by bismaleimide,and cPA-FU-Das were prepared.The Michael addition was monitored by Fourier transform infrared spectroscopy and electrospray ionization mass spectroscopy.The reverse DA reaction of the cPA-FU-Das was demonstrated by differential scanning calorimetry and dissolution property.Their thermally self-healing properties were verified by polarizing optical microscopy and tensile test.The cPA-FU-Das exhibited good mechanical properties and high self-healing efficiency.They self-healed at 130℃.The tensile strength after repairing was up to 19 Mpa with self-healing efficiency reaching 92％.
文献关键词：
中图分类号：
作者姓名：
YANG Shengqing;ZHAO Jinnan;CHEN Shuo;ZHAO Jingbo
作者机构：
Key Laboratory of Carbon Fiber and Functional Polymers,Ministry of Educa-tion,College of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing 100029,P.R.China
文献出处：
引用格式：
[1]YANG Shengqing;ZHAO Jinnan;CHEN Shuo;ZHAO Jingbo-.Flexible Self-healing Cross-linked Polyamides Synthesized Through Bulk Michael Addition,Polycondensation,and Diels-Alder Reaction)[J].高等学校化学研究（英文版）,2022(04):968-973
A类：
Polyamides,Polycondensation,polyamides,cPA,furfurylamine,diester,Fus,triamine,bismaleimide
B类：
Flexible,Self,healing,Cross,Synthesized,Through,Bulk,Michael,Addition,Diels,Alder,Reaction,Three,new,thermally,responsive,self,FU,Das,good,tensile,strength,toughness,were,synthesized,through,bulk,addition,polycondensation,reaction,Unlike,common,stable,seal,cracks,by,mere,heating,First,methyl,acrylate,was,conducted,DE,prepared,transformed,into,prepolymers,that,contained,pendant,groups,propylene,glycol,PPG,diamine,crosslinked,monitored,Fourier,infrared,spectroscopy,electrospray,ionization,mass,reverse,DA,demonstrated,differential,scanning,calorimetry,dissolution,property,Their,properties,verified,polarizing,optical,microscopy,test,exhibited,mechanical,high,efficiency,They,healed,after,repairing,Mpa,reaching
AB值：
0.475469
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