Journal Article

FZJ-2015-02333

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Multifunctional supramolecular polymer networks as next-generation consolidants for archaeological wood conservation

Walsh, Z. (Corresponding Author) ; Janeček, E.-R. ; Hodgkinson, J. T. ; Sedlmair, J. ; Koutsioumpas, A.FZJ* ; Spring, D. R. ; Welch, M. ; Hirschmugl, C. J. ; Toprakcioglu, C. ; Nitschke, J. R. ; Jones, M. ; Scherman, O. A.

2014
National Acad. of Sciences Washington, DC

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Please use a persistent id in citations: doi:10.1073/pnas.1406037111

Abstract: The preservation of our cultural heritage is of great importance to future generations. Despite this, significant problems have arisen with the conservation of waterlogged wooden artifacts. Three major issues facing conservators are structural instability on drying, biological degradation, and chemical degradation on account of Fe3+-catalyzed production of sulfuric and oxalic acid in the waterlogged timbers. Currently, no conservation treatment exists that effectively addresses all three issues simultaneously. A new conservation treatment is reported here based on a supramolecular polymer network constructed from natural polymers with dynamic cross-linking formed by a combination of both host-guest complexation and a strong siderophore pendant from a polymer backbone. Consequently, the proposed consolidant has the ability to chelate and trap iron while enhancing structural stability. The incorporation of antibacterial moieties through a dynamic covalent linkage into the network provides the material with improved biological resistance. Exploiting an environmentally compatible natural material with completely reversible chemistries is a safer, greener alternative to current strategies and may extend the lifetime of many culturally relevant waterlogged artifacts around the world.

Keyword(s): Earth, Environment and Cultural Heritage (1st) ; Earth, Environment and Cultural Heritage (1st) ; Archaeology/Museums/Arts (2nd) ; Chemistry (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)

Research Program(s):

1. 54G - JCNS (POF2-54G24) (POF2-54G24)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2014

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Database coverage:
; BIOSIS Previews ; Current Contents - Agriculture, Biology and Environmental Sciences ; Current Contents - Life Sciences ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record

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