Intramolecular crosslinking of poly(vinyl alcohol)

Bert Gebben, Hans W.A. van den Berg, Dick Bargeman, Cees A. Smolders

Research output: Contribution to journalArticleAcademic

82 Citations (Scopus)
305 Downloads (Pure)

Abstract

Poly(vinyl alcohol) is crosslinked in dilute solution (c=0.1 wt%) with glutaraldehyde. The reaction product is characterized by viscometry and gel permeation chromatography (g.p.c.). The intrinsic viscosity decreases with increasing degree of crosslinking and does not depend on temperature. G.p.c. reveals that the reaction product is not homogeneous, but consists of a mixture of particles with different sizes, possibly both intra- and intermolecularly crosslinked molecules. The intramolecularly crosslinked molecules are smaller in size than the initial polymer molecules and their size depends on the degree of crosslinking. They possess a narrow particle size distribution even if the initial polymer sample had a broad molecular weight distribution.
Original languageEnglish
Pages (from-to)1737-1740
JournalPolymer
Volume26
Issue number11
DOIs
Publication statusPublished - 1985

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