Thermally Stable Polymers: Syntheses and Properties |
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Page 69
... Soluble . C - NH - R Thermal properties are lowered by sulfone group . N - SO2 - R - SO2 Stable to 300 ° C . Acid - soluble . 2 N N = CH- CH = CH - C - NH 1 OH -CH = CH - C = N CH = PMT 160-455 ° C . Stable at 400 ° C . Black . High ...
... Soluble . C - NH - R Thermal properties are lowered by sulfone group . N - SO2 - R - SO2 Stable to 300 ° C . Acid - soluble . 2 N N = CH- CH = CH - C - NH 1 OH -CH = CH - C = N CH = PMT 160-455 ° C . Stable at 400 ° C . Black . High ...
Page 225
... Soluble . Tough , flexible films . Stable to 575-600 ° C . Yellow - brown brittle resins . Soluble . at 50-260 ° C . Stable to 330 ° C in N2 • Soluble . Soften Clear , yellow , tough , flexible films . Stable to 380-400 ° C in air and ...
... Soluble . Tough , flexible films . Stable to 575-600 ° C . Yellow - brown brittle resins . Soluble . at 50-260 ° C . Stable to 330 ° C in N2 • Soluble . Soften Clear , yellow , tough , flexible films . Stable to 380-400 ° C in air and ...
Page 295
... Soluble . Tg -60 to -30 ° C . Stability 570-700 ° C in argon . + CH3 CH3 CH3 + CB10H10C - C6F4 Soluble . 15 % weight loss at 1000 ° C in nitrogen . Stable to 700 ° C in argon . Tg -60 ° C . Tm 71 ° C . CH3 CH3 Five - boron cage ...
... Soluble . Tg -60 to -30 ° C . Stability 570-700 ° C in argon . + CH3 CH3 CH3 + CB10H10C - C6F4 Soluble . 15 % weight loss at 1000 ° C in nitrogen . Stable to 700 ° C in argon . Tg -60 ° C . Tm 71 ° C . CH3 CH3 Five - boron cage ...
Common terms and phrases
acetone added air or nitrogen aliphatic amide amine anhydride aramids aromatic backbone benzene C. S. Marvel carborane CH₂ CH3 CH3 CH3 Chem chloride chloroform condensation cooled copolymer crosslinking crystalline cyclization decomposition diamine dianhydride dl/g DMAC DMSO dried ether fibers films filtration functions groups heated Hergenrother heterocyclic HMPA hydrazide Imai imide inherent viscosity intermediate intrinsic viscosity isolated isothermal Japan Patent ladder m-cresol m-or Macromol materials melt methanol Method mixture is stirred mmol modulus molecular weight monomer NH-C NH2 NH2 NH2 nitrogen oxadiazole oxide P. M. Hergenrother phenyl phenylene poly polyhydrazide polyimides polymerization polyoxadiazoles postcure poured precipitate the polymer Preprints properties pyridine reaction reflux ring room temperature siloxane sodium solid soluble solution solvent structure sulfone sulfuric acid synthesized tensile strength tetraamines thermal stability thiadiazole tion triazole U.S. Patent vacuo vacuum washed weight loss yellow yield