✦ LIBER ✦

Dibenzyl structure on the macromolecular chain—IV. Polyureas and poly(parabanic acid)s

✍ Scribed by Elena Scortanu; Adrian A. Caraculacu; Georgeta Caraculacu; Ioan Agherghinei

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 247 KB
Volume: 29
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(93)90299-u

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✦ Synopsis

Abstraet--Polyureas with the dibenzylic system on the macromolecular chain are considered. The behaviour of these polyureas during cyclization with oxalyl chloride, leading to polyparabanic derivatives, was studied. The influences of polymer structures and reaction conditions on the heterocyclization is discussed. All the polymers were characterized by elemental analyses, inherent viscosities, i.r. spectra and thermogravimetric analyses.

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