Acyclic polymeric Reissert compounds: chemically reactive polyamides. 3
Autor: | Harry W. Gibson, Jean Pierre Leblanc |
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Rok vydání: | 1993 |
Předmět: | |
Zdroj: | Macromolecules. 26:4953-4955 |
ISSN: | 1520-5835 0024-9297 |
DOI: | 10.1021/ma00070a032 |
Popis: | Open-chain polymeric Reisert compounds, i.e., poly[α-(acylamino)nitrile]s, can be prepared by condensation of bi(α-aminonitrile)s with adipoyl chloride. When the bis(α-aminonitrile) possesses hindered internal secondary amine groups, no high molecular weight polymers could be obtained. From less hindered bis(α-aminonitrile)s amorphous polymeric Reissert compounds of intrinsic viscosity 0.15-0.24 dL.g -1 were synthesized. Their stability was found to exceed in most cases 350°C in nitrogen (5% weight loss). By virtue of the Reissert moiety's acidic proton, chemical modification of such polymers, e.g. by alkylation, provides a means of bulk and surface property control |
Databáze: | OpenAIRE |
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