Thermally Stable Polymers: Syntheses and Properties |
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Page 5
... decomposition on the measured properties . A further complication is the environment of the decomposition . One must be concerned with the removal or retention of volatile products of decomposition , i.e. , is a gas to be flowing over ...
... decomposition on the measured properties . A further complication is the environment of the decomposition . One must be concerned with the removal or retention of volatile products of decomposition , i.e. , is a gas to be flowing over ...
Page 107
... decomposition temperature ( 410-485 ° C ) than the arene products ( 360- 485 ° C ) . Severe degradation occurs at 480-510 ° C . The lack of correlation of structure to stability suggests that decomposition is due to decycliza- tion of ...
... decomposition temperature ( 410-485 ° C ) than the arene products ( 360- 485 ° C ) . Severe degradation occurs at 480-510 ° C . The lack of correlation of structure to stability suggests that decomposition is due to decycliza- tion of ...
Page 277
... decomposition temperature , although a Tg has been reported at 406 ° C for the polymer with a dibenzofuran unit in the backbone [ 29 ] . TGA curves for these materials generally show a gradual decomposition , dropping to only a 25-40 ...
... decomposition temperature , although a Tg has been reported at 406 ° C for the polymer with a dibenzofuran unit in the backbone [ 29 ] . TGA curves for these materials generally show a gradual decomposition , dropping to only a 25-40 ...
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