초록 ▼

Thermomechanical and thermo-oxidative stabilities in resin composites across the range of aerospace “engineering thermoplastic”resins are improved by forming four crosslinks at each addition polymerization site in the backbone of the resin using crosslinking functionalities of the general formula: [

Thermomechanical and thermo-oxidative stabilities in resin composites across the range of aerospace “engineering thermoplastic”resins are improved by forming four crosslinks at each addition polymerization site in the backbone of the resin using crosslinking functionalities of the general formula: [Figure] [Figure] b8)OH, [Figure] [Figure] [Figure] [Figure] R8=a divalent organic radical; X=halogen; Me=methyl T=allyl or methallyl. G=－CH2－, －S－, －CO－, －SO－, －O－, －CHR3－, or －C(R3)2－; i=1 or 2; R3=hydrogen, lower alkyl, lower alkoxy, aryl, or aryloxy; and Q3〓C(R3)2.

대표청구항 ▼

A multiple chemically functional, crosslinking end cap monomer suitable for making processable oligomers that cure to form advanced composites with thermomechanical and thermo-oxidative stability, comprising: [Figure] [Figure] i=1 or 2; －=phenylene; E=an unsaturated organic radical selected from th

A multiple chemically functional, crosslinking end cap monomer suitable for making processable oligomers that cure to form advanced composites with thermomechanical and thermo-oxidative stability, comprising: [Figure] [Figure] i=1 or 2; －=phenylene; E=an unsaturated organic radical selected from the group consisting of: [Figure] [Figure] [Figure] Me=methyl; G=－CH2－, －SO2－, －CO－, －S－, －O－, －C(HR3)－, or －C(R3)2－; R3 independently any of hydrogen, lower alkyl, lower alkoxy, aryl, or aryloxy; b8OH, OR*8OCN, [Figure] Q3〓C(R3)2; X=halogen; T=allyl or methallyl; and R8 & R*8=a divalent organic aromatic radical, provided that Qb8－OCN.