ISSN:
0360-6376
Schlagwort(e):
Physics
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
Polycondensations of N,N′-bis(hydroxyalkyl)pyromellitic diimides, N,N′-bis(hydroxyphenyl)-pyromellitic diimides, N,N′-bis(hydroxyalkyl)-3,3′,4,4′-benzophenonetetracarboxylic diimides and N,N′-bis(hydroxyphenyl)-3,3′-4,4′-benzophenonetetracarboxylic diimides with aromatic disulfonyl chlorides were carried out in pyridine to produce poly(imide-sulfonate)s. The resulting polymers had inherent viscosities in the range of 0.25-0.38 dL/g. These poly(imide-sulfonate)s were insoluble in common organic solvents and had relatively good thermal stability. The TGA data showed 10% weight losses at 253-365°C and residual weights at 500°C were 22-72% in nitrogen.
Zusätzliches Material:
5 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/pol.1982.170200418
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