Polymers derived from 2-furaldehyde and aromatic diamines containing keto-imino group

Autor:	J. M. Daraji, K. J. Shah, A. M. Patel
Rok vydání:	2003
Předmět:	Reaction mechanism Condensation polymer Polymers and Plastics Furaldehyde General Chemical Engineering Condensation reaction Polyelectrolyte Analytical Chemistry Thermogravimetry chemistry.chemical_compound Aniline chemistry Furan Polymer chemistry
Zdroj:	International Journal of Polymeric Materials. 52:163-174
ISSN:	1563-535X 0091-4037
DOI:	10.1080/00914030304897
Popis:	Poly[imino(cyclopent-2-en-1-one-2,4-diyl)iminoarylenes] were prepared by the condensation of 2-furaldehyde with various aromatic diamines containing keto-imino group in solution at room temperature. All polycondensations were carried out in one step and under identical conditions. It was observed that the most likely condensation reaction is through the furan rearrangement that leads to Poly-[imino(cyclopent-2-en-1-one-2,4-diyl)iminoarylenes]. The structures of all the polymer samples were confirmed by elemental analyses and by comparison of IR spectral characteristics with those of a model compound derived from 2-furaldehyde and aniline. Number average molecular weights of all polymer samples were estimated from nonaqueous conductometric titration. The viscometric measurements of solutions of polymer samples in a formic-acetic acid (85:15) (v/v) mixture exhibited polyelectrolyte behaviour. The thermal properties of polymer samples were revealed by thermogravimetry. The formation of the polymeric product ...
Databáze:	OpenAIRE
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