Oxidative degradation of nadic-end-capped polyimides. 2. Evidence for reactions occurring at high temperatures

Macromolecules

Volumn 30, Issue 11, 1997, Pages 3215-3223

  Meador, Mary Ann B ^a   Johnston, J Christopher ^a   Cavano, Paul J ^b   Frimer, Aryeh A ^c  

^a NASA GLENN RESEARCH CENTER   (United States)

^b CASE WESTERN RESERVE UNIVERSITY   (United States)

^c BAR ILAN UNIVERSITY   (Israel)

Author keywords

[No Author keywords available]

Indexed keywords

CARBON; CHEMICAL REACTIONS; DEGRADATION; DERIVATIVES; ESTERS; FOURIER TRANSFORM INFRARED SPECTROSCOPY; KETONES; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; OXIDATION; PHASE TRANSITIONS; POLYMERIZATION; SYNTHESIS (CHEMICAL);

CROSS POLARIZED MAGIC ANGLE SPINNING; METHYLENE CARBON; METHYLENEDIANILINE; NADIC END CAP; OXIDATIVE DEGRADATION; POLYMERIZATION OF MONOMERIC REACTANTS;

POLYIMIDES;

EID: 0031548280     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma970097i     Document Type: Article

References (39)

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38. 17 observed that the aromatic carbon attached to the methylene appears at 141.2 ppm in a PMR-15 model compound and at 137.0 ppm in the corresponding DABP analog.
39. Actually, as noted above, the conversion of PMR-15 to DABP-15 should involve a weight gain.