Radiation-induced bulk polymerization of N-vinylpyrrolidone in aqueous solutions and investigation of the molecular characteristics of polyvinylpyrrolidone

Ushakova, V. N.; Panarin, Ye.F.; Kiryukhin, D. P.; Munikhes, V.M.; Lelyukh, A. I.; Ul’yanova, N. N.; Baranovskaya, I.A.; Klenin, S.I.

doi:10.1016/0032-3950(91)90102-v

Cited by 3 publications

(2 citation statements)

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“…We used the following chemicals: dimethylacetamide available from Vekton (it was dehydrated and vacuum-distilled, with collection of the fraction boiling at 42oC and a residual pressure of 7 mm Hg); lithium chloride crystal hydrate (dehydrated at 400oC); sulfite cellulose (Svetogorsk Paper and Pulp Combine), DP = 996; crab chitin (manufactured by Vostok-Bor Joint-Stock Company, Dal'negorsk), M = 170 kDa, without ash and proteins; chitin from the North Sea shrimp, M = 135 kDa, with ash and proteins removed; polyvinylpyrrolidone (PVP) (samples with different molecular weights were prepared by radiation-induced polymerization [6]); and methyl cellulose with DP = 980 and degree of substitution 0.94 (laboratory synthesis).…”

Section: Methodsmentioning

confidence: 99%

Preparation and Modification of Chitin-Based Fibers

Михайлов

Lebedeva

2005

Russ J Appl Chem

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Spinning solutions of chitin were modified with polyvinylpyrrolidone, methyl cellulose, and sulfite cellulose. The resulting systems were used for preparing fibers by the wet formation method. The deformation and strength characteristics of these fibers were determined, and their X-ray diffraction analysis was carried out. The influence of the modifying additives on the structure and characteristics of the systems prepared was explained.

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