All Outputs (9)

Comparative hydrodynamic characterisation of two hydroxylated polymers based on α-pinene- or oleic acid-derived monomers for potential use as archaeological consolidants (2022)
Journal Article
Cutajar, M., Machado, F., Cuzzucoli Crucitti, V., Braovac, S., Stockman, R. A., Howdle, S. M., & Harding, S. E. (2022). Comparative hydrodynamic characterisation of two hydroxylated polymers based on α-pinene- or oleic acid-derived monomers for potential use as archaeological consolidants. Scientific Reports, 12(1), Article 18411. https://doi.org/10.1038/s41598-022-21027-4

The Oseberg Viking ship burial is one of the most extensive collections of Viking wooden artefacts ever excavated in Norway. In the early twentieth century, many of these artefacts were treated with alum in order to preserve them, inadvertently leadi... Read More about Comparative hydrodynamic characterisation of two hydroxylated polymers based on α-pinene- or oleic acid-derived monomers for potential use as archaeological consolidants.

N-Hydroxyethyl acrylamide as a functional eROP initiator for the preparation of nanoparticles under “greener” reaction conditions (2022)
Journal Article
Lentz, J. C., Cavanagh, R., Moloney, C., Falcone Pin, B., Kortsen, K., Fowler, H. R., …Howdle, S. M. (2022). N-Hydroxyethyl acrylamide as a functional eROP initiator for the preparation of nanoparticles under “greener” reaction conditions. Polymer Chemistry, 13(42), 6032-6045. https://doi.org/10.1039/d2py00849a

N-Hydroxyethyl acrylamide was used as a functional initiator for the enzymatic ring-opening polymerisation of ϵ-caprolactone and δ-valerolactone. N-Hydroxyethyl acrylamide was found not to undergo self-reaction in the presence of Lipase B from Candid... Read More about N-Hydroxyethyl acrylamide as a functional eROP initiator for the preparation of nanoparticles under “greener” reaction conditions.

Sustainable ABA triblock methacrylate copolymers incorporating both high and low Tg terpene-derived monomers (2022)
Journal Article
Atkinson, R. L., Elsmore, M., Smith, S., Reynolds-Green, M., Topham, P. D., Toolan, D. T., …Howdle, S. M. (2022). Sustainable ABA triblock methacrylate copolymers incorporating both high and low Tg terpene-derived monomers. European Polymer Journal, 179, Article 11567. https://doi.org/10.1016/j.eurpolymj.2022.111567

We report the synthesis of novel terpene-based monomers: nopinyl acrylate and methacrylate, from naturally abundant β-pinene. A very high Tg value was observed for poly(nopinyl methacrylate) when synthesised by free radical polymerisation, and well-d... Read More about Sustainable ABA triblock methacrylate copolymers incorporating both high and low Tg terpene-derived monomers.

A self-crosslinking monomer, α-pinene methacrylate: understanding and exploiting hydrogen abstraction (2022)
Journal Article
Monaghan, O. R., Skowron, S. T., Moore, J. C., Pin-Nó, M., Kortsen, K., Atkinson, R. L., …Howdle, S. M. (2022). A self-crosslinking monomer, α-pinene methacrylate: understanding and exploiting hydrogen abstraction. Polymer Chemistry, 13(39), 5557-5567. https://doi.org/10.1039/d2py00878e

Crosslinking is a valuable route to creating new polymeric materials and normally involves introduction of a cross linker or some form of secondary processing. Here we report the discovery and analysis of a self-crosslinking sustainable terpene deriv... Read More about A self-crosslinking monomer, α-pinene methacrylate: understanding and exploiting hydrogen abstraction.

Antimicrobial ‘inks’ for 3D printing: block copolymer-silver nanoparticle composites synthesised using supercritical CO2 (2022)
Journal Article
Larder, R. R., Krumins, E., Jacob, P. L., Kortsen, K., Cavanagh, R., Jiang, L., …Howdle, S. M. (2022). Antimicrobial ‘inks’ for 3D printing: block copolymer-silver nanoparticle composites synthesised using supercritical CO2. Polymer Chemistry, 13(25), 3768-3779. https://doi.org/10.1039/d2py00398h

Silver nanoparticles (AgNP) are widely exploited for their effective antimicrobial activity against a range of pathogens. Their high efficacy in this regard has seen the global demand for AgNP in consumer products steadily increase in recent years, n... Read More about Antimicrobial ‘inks’ for 3D printing: block copolymer-silver nanoparticle composites synthesised using supercritical CO2.

Passerini chemistries for synthesis of polymer pro-drug and polymersome drug delivery nanoparticles (2022)
Journal Article
Travanut, A., Monteiro, P. F., Smith, S., Howdle, S. M., Grabowska, A. M., Kellam, B., …Alexander, C. (2022). Passerini chemistries for synthesis of polymer pro-drug and polymersome drug delivery nanoparticles. Journal of Materials Chemistry B, 10, 3895-3905. https://doi.org/10.1039/d2tb00045h

New materials chemistries are urgently needed to overcome the limitations of existing biomedical materials in terms of preparation, functionality and versatility, and also in regards to their compatibility with biological environments. Here, we show... Read More about Passerini chemistries for synthesis of polymer pro-drug and polymersome drug delivery nanoparticles.

Exploiting the tuneable density of scCO2 to improve particle size control for dispersion polymerisations in the presence of poly(dimethyl siloxane) stabilisers (2022)
Journal Article
Kortsen, K., Fowler, H. R., Jacob, P. L., Krumins, E., Lentz, J. C., Souhil, M. R., …Howdle, S. M. (2022). Exploiting the tuneable density of scCO2 to improve particle size control for dispersion polymerisations in the presence of poly(dimethyl siloxane) stabilisers. European Polymer Journal, 168, Article 111108. https://doi.org/10.1016/j.eurpolymj.2022.111108

The dispersion polymerisation of methyl methacrylate (MMA) is a widely employed method for producing discrete, spherical PMMA particles from traditional solvents, which cover a broad particle size range. With environmental impact becoming an ever mor... Read More about Exploiting the tuneable density of scCO2 to improve particle size control for dispersion polymerisations in the presence of poly(dimethyl siloxane) stabilisers.

Greener extraction-chemical modification-polymerization pipeline of vernolic acid from Ethiopian ironweed plant (2022)
Journal Article
d'Almeida Gameiro, M., Jacob, P. L., Kortsen, K., Ward, T., Taresco, V., Stockman, R. A., …Howdle, S. M. (2022). Greener extraction-chemical modification-polymerization pipeline of vernolic acid from Ethiopian ironweed plant. Journal of Polymer Science, https://doi.org/10.1002/pol.20220050

Epoxidized oils are commonly used in the plastics industry as additives in the formulation of polyvinyl chloride (PVC) and as monomers in the coating industry. They are produced from petrochemical feedstocks or by chemical epoxidation of natural oils... Read More about Greener extraction-chemical modification-polymerization pipeline of vernolic acid from Ethiopian ironweed plant.

Sustainable terpene triblock copolymers with tuneable properties for pressure sensitive adhesive applications (2022)
Journal Article
Elsmore, M., Atkinson, R., Irvine, D., Howdle, S., & De Focatiis, D. (2022). Sustainable terpene triblock copolymers with tuneable properties for pressure sensitive adhesive applications. Polymer Testing, 109, Article 107530. https://doi.org/10.1016/j.polymertesting.2022.107530

A series of triblock copolymers in a hard-soft-hard block configuration with varying hard block α-pinene methacrylate content and molecular weight and butyl acrylate soft segment have been synthesised and investigated for viability in pressure sensit... Read More about Sustainable terpene triblock copolymers with tuneable properties for pressure sensitive adhesive applications.