Aminoethyl substitution enhances the self-assembly properties of an aminocellulose as a potential archaeological wood consolidant

• DOI: 10.1007/s00249-020-01451-y
• Publication Date: 2020-08-25T18:03:31Z
• Authors: Jennifer M. K. Wa...; Robert Hampe; Richard B. Gillis; Agnes Sitterli; Gary G. Adams; Hartmut Kutzke; Thomas Heinze; Stephen E. Harding
• Keywords: Substitution (logic); Sedimentation; Aqueous medium

Abstract The 6-deoxy-6-aminocelluloses—or “aminocelluloses”—are a class of synthetic natural cellulose derivatives which are mostly aqueous soluble and have excellent film-forming properties. Recent studies connected these properties at the molecular level with protein-like self-associative behaviour for range aminocelluloses including 6-deoxy-6-(ω-aminoethyl) aminocellulose AEA-1 association being two-stage process—a reversible oligomerisation followed by further (semi-reversible) aggregation into larger structures. Here, we synthesise compare new AEA-1′ different degree substitution one alkyl derivatisation, namely 6-deoxy-6-(ω-hydroxyethyl) HEA-1′. As AEA-1, sedimentation velocity equilibrium in analytical ultracentrifuge still show process both HEA-1′, latter giving higher molar masses. consequences use as consolidants archaeological wood considered.