✦ LIBER ✦

Poly[2-methoxy-4,6-di(p,p′-isopropylidine diphenyloxy)-s-triazine] in solution. Treatment of viscometric data according to the theories of intrinsic viscosity of rigid-chain polymers

✍ Scribed by P.P. Shah; H.B. Naik

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 289 KB
Volume: 23
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(87)90101-7

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✦ Synopsis

The intrinsic viscosity data of poly[2-methoxy-4,6-di(p,p '-isopropylidene diphenyloxy)-s-triazine] (PMIPT) solutions in various solvents are treated according to the theories of intrinsic viscosity of rigid-chain polymers, representing a polymer molecule as a worm-like necklace or a worm-like cylinder. The length of Kuhn segment (2 -~), which is a measure of equilibrium rigidity of a polymer chain, is found to be considerably smaller for PMIPT than for polyisocyanates and cellulose derivatives whose chains are known to possess greater equilibrium rigidity.