Terpene polyacrylate TPA5 shows favorable molecular hydrodynamic properties as a potential bioinspired archaeological wood consolidant

Abstract There is currently a pressing need for the development of novel bioinspired consolidants for waterlogged, archaeological wood. Bioinspired materials possess many advantages, such as biocompatibility and sustainability, which makes them ideal to use in this capacity. Based on this, a polyhyd...

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Autores principales:	Michelle Cutajar, Fabrizio Andriulo, Megan R. Thomsett, Jonathan C. Moore, Benoit Couturaud, Steven M. Howdle, Robert A. Stockman, Stephen E. Harding
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0c86937092124cb3a9232f7ffd2a9574
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spelling	oai:doaj.org-article:0c86937092124cb3a9232f7ffd2a95742021-12-02T13:26:28ZTerpene polyacrylate TPA5 shows favorable molecular hydrodynamic properties as a potential bioinspired archaeological wood consolidant10.1038/s41598-021-86543-12045-2322https://doaj.org/article/0c86937092124cb3a9232f7ffd2a95742021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86543-1https://doaj.org/toc/2045-2322Abstract There is currently a pressing need for the development of novel bioinspired consolidants for waterlogged, archaeological wood. Bioinspired materials possess many advantages, such as biocompatibility and sustainability, which makes them ideal to use in this capacity. Based on this, a polyhydroxylated monomer was synthesised from α-pinene, a sustainable terpene feedstock derived from pine trees, and used to prepare a low molar mass polymer TPA5 through free radical polymerisation. This polymer was extensively characterised by NMR spectroscopy (chemical composition) and molecular hydrodynamics, primarily using analytical ultracentrifugation reinforced by gel filtration chromatography and viscometry, in order to investigate whether it would be suitable for wood consolidation purposes. Sedimentation equilibrium indicated a weight average molar mass M w of (4.3 ± 0.2) kDa, with minimal concentration dependence. Further analysis with MULTISIG revealed a broad distribution of molar masses and this heterogeneity was further confirmed by sedimentation velocity. Conformation analyses with the Perrin P and viscosity increment ν universal hydrodynamic parameters indicated that the polymer had an elongated shape, with both factors giving consistent results and a consensus axial ratio of ~ 4.5. These collective properties—hydrogen bonding potential enhanced by an elongated shape, together with a small injectable molar mass—suggest this polymer is worthy of further consideration as a potential consolidant.Michelle CutajarFabrizio AndriuloMegan R. ThomsettJonathan C. MooreBenoit CouturaudSteven M. HowdleRobert A. StockmanStephen E. HardingNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Michelle Cutajar Fabrizio Andriulo Megan R. Thomsett Jonathan C. Moore Benoit Couturaud Steven M. Howdle Robert A. Stockman Stephen E. Harding Terpene polyacrylate TPA5 shows favorable molecular hydrodynamic properties as a potential bioinspired archaeological wood consolidant
description	Abstract There is currently a pressing need for the development of novel bioinspired consolidants for waterlogged, archaeological wood. Bioinspired materials possess many advantages, such as biocompatibility and sustainability, which makes them ideal to use in this capacity. Based on this, a polyhydroxylated monomer was synthesised from α-pinene, a sustainable terpene feedstock derived from pine trees, and used to prepare a low molar mass polymer TPA5 through free radical polymerisation. This polymer was extensively characterised by NMR spectroscopy (chemical composition) and molecular hydrodynamics, primarily using analytical ultracentrifugation reinforced by gel filtration chromatography and viscometry, in order to investigate whether it would be suitable for wood consolidation purposes. Sedimentation equilibrium indicated a weight average molar mass M w of (4.3 ± 0.2) kDa, with minimal concentration dependence. Further analysis with MULTISIG revealed a broad distribution of molar masses and this heterogeneity was further confirmed by sedimentation velocity. Conformation analyses with the Perrin P and viscosity increment ν universal hydrodynamic parameters indicated that the polymer had an elongated shape, with both factors giving consistent results and a consensus axial ratio of ~ 4.5. These collective properties—hydrogen bonding potential enhanced by an elongated shape, together with a small injectable molar mass—suggest this polymer is worthy of further consideration as a potential consolidant.
format	article
author	Michelle Cutajar Fabrizio Andriulo Megan R. Thomsett Jonathan C. Moore Benoit Couturaud Steven M. Howdle Robert A. Stockman Stephen E. Harding
author_facet	Michelle Cutajar Fabrizio Andriulo Megan R. Thomsett Jonathan C. Moore Benoit Couturaud Steven M. Howdle Robert A. Stockman Stephen E. Harding
author_sort	Michelle Cutajar
title	Terpene polyacrylate TPA5 shows favorable molecular hydrodynamic properties as a potential bioinspired archaeological wood consolidant
title_short	Terpene polyacrylate TPA5 shows favorable molecular hydrodynamic properties as a potential bioinspired archaeological wood consolidant
title_full	Terpene polyacrylate TPA5 shows favorable molecular hydrodynamic properties as a potential bioinspired archaeological wood consolidant
title_fullStr	Terpene polyacrylate TPA5 shows favorable molecular hydrodynamic properties as a potential bioinspired archaeological wood consolidant
title_full_unstemmed	Terpene polyacrylate TPA5 shows favorable molecular hydrodynamic properties as a potential bioinspired archaeological wood consolidant
title_sort	terpene polyacrylate tpa5 shows favorable molecular hydrodynamic properties as a potential bioinspired archaeological wood consolidant
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0c86937092124cb3a9232f7ffd2a9574
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Terpene polyacrylate TPA5 shows favorable molecular hydrodynamic properties as a potential bioinspired archaeological wood consolidant

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