Thermally Stable Polymers: Syntheses and Properties |
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Page 41
... crosslinked resins which give no weight loss up to 360-390 ° C [ 34,35 ] in nitrogen by TGA . Additional allylic sites improved the stability [ 37 ] . 2.4-4 Biphenylene Crosslinking Biphenylene has been discovered as a unit which can be ...
... crosslinked resins which give no weight loss up to 360-390 ° C [ 34,35 ] in nitrogen by TGA . Additional allylic sites improved the stability [ 37 ] . 2.4-4 Biphenylene Crosslinking Biphenylene has been discovered as a unit which can be ...
Page 232
... crosslinked with diamine . Again , as with the crosslinking discussed above , the use of cofunctions in the backbone with quinoxalines does not improve the thermal stability but does change bulk and mechanical properties from the simple ...
... crosslinked with diamine . Again , as with the crosslinking discussed above , the use of cofunctions in the backbone with quinoxalines does not improve the thermal stability but does change bulk and mechanical properties from the simple ...
Page 248
... crosslinking or curing methods , and applications . Hergenrother has prepared a concise review of PPQ's and described a new , high molecular weight , soluble poly ( carbonate phenylquinoxaline [ 87 ] . The materials gave inherent ...
... crosslinking or curing methods , and applications . Hergenrother has prepared a concise review of PPQ's and described a new , high molecular weight , soluble poly ( carbonate phenylquinoxaline [ 87 ] . The materials gave inherent ...
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