
Overview
Background
Professor Bronwyn Laycock has a diverse background in translational research, working not only in academia but also in industry and as a consulting chemist as well as at CSIRO. Her research activities have ranged from bio/degradable polymers, composites, organic and organometallic synthesis, waste conversion technologies, and pulp and paper chemistry, to general polymer chemistry. She is currently working across a range of projects with a focus on materials for circular economy applications and management of the transition to the new plastics economy. The application areas in her research program include biopolymers (particularly polyhydroxyalkanoates), polymer lifetime estimation and end-of-life management/conversion technologies, biocomposites, controlled release matrixes for pesticide and fertiliser applications, polyurethane chemistry, and biodegradable packaging.
She has a strong history of successful commercialisation and impact, being a co-inventor on CSIRO's extended wear contact lens program (recognised as its fourth most significant invention) - for which she was awarded a joint CSIRO Medal for Research Achievement 2009. As a Project Leader and Deputy Program Leader within the CRC for Polymers, she also managed a project that delivered an oxodegradable thin film polyethylene that was commercially licenced by Integrated Packaging. This work earned the team a Joint Chairman’s Award for research/commercialization (CRC for Polymers) and an Excellence in Innovation Award (CRC Association).
Availability
- Professor Bronwyn Laycock is:
- Available for supervision
- Media expert
Fields of research
Qualifications
- Bachelor of Science, The University of Queensland
- Doctor of Philosophy, The University of Queensland
- Postgraduate Diploma, University of Melbourne
- Masters (Coursework), University of Melbourne
Research interests
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Biodegradable polymers - Polyhydroxyalkanoates
Polyhydroxyalkanoates are microbially synthesised biodegradable polymers that have properties comparable with polypropylene. They can be synthesised using mixed cultures from wastewater treatment plants and fermented waste carbon streams, and have very versatile properties depending on feedstock. Not only are they completely biodegradable, even in a marine environment, they are also water resistant (unusual for a biopolymer).
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Controlled release formulations for agricultural applications
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Biocomposites, particularly wood biopolymer composites
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Starch based products for packaging applications
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Polymer lifetime estimation and biodegradation
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Reducing methane emissions from cows
Research impacts
Professor Laycock's research seeks to address some of the challenges around global sustainability and planetary boundaries, such as plastics sustainability, nutrient recovery and efficiency, controlled release formulations and sustainable materials for the circular economy, particularly bioderived materials for packaging, film and other applications, as well as plastics lifetime and impact estimation and end-of-life management.
Works
Search Professor Bronwyn Laycock’s works on UQ eSpace
2021
Journal Article
Role of catalyst support's physicochemical properties on catalytic transfer hydrogenation over palladium catalysts
Fraga, Gabriel, Santos, Mirella S., Konarova, Muxina, Hasan, M. D., Laycock, Bronwyn, Batalha, Nuno and Pratt, Steven (2021). Role of catalyst support's physicochemical properties on catalytic transfer hydrogenation over palladium catalysts. ChemCatChem, 13 (24), 5191-5202. doi: 10.1002/cctc.202101170
2020
Journal Article
Synthesis of starch graft-copolymers via reactive extrusion and their ammonium sorption properties
Siyamak, Samira, Laycock, Bronwyn and Luckman, Paul (2020). Synthesis of starch graft-copolymers via reactive extrusion and their ammonium sorption properties. Chemical Engineering Journal, 398 124291, 124291. doi: 10.1016/j.cej.2020.124291
2020
Journal Article
Can nitrogen source and nitrification inhibitors affect in-season nitrogen supply?
Redding, M.R., Phillips, I., Pratt, C., Paungfoo-Lonhienne, C., Levett, I., Hill, J., Mehta, C., Bailey, T., Brackin, R., McAuley, J., Pratt, S., Laycock, B. and Mayer, D.G. (2020). Can nitrogen source and nitrification inhibitors affect in-season nitrogen supply?. Communications in Soil Science and Plant Analysis, 51 (16), 2189-2204. doi: 10.1080/00103624.2020.1822383
2020
Journal Article
Hydrocarbon hydrogen carriers for catalytic transfer hydrogenation of guaiacol
Fraga, Gabriel, Yin, Yuling, Konarova, Muxina, Hasan, M. D., Laycock, Bronwyn, Yuan, Qinghong, Batalha, Nuno and Pratt, Steven (2020). Hydrocarbon hydrogen carriers for catalytic transfer hydrogenation of guaiacol. International Journal of Hydrogen Energy, 45 (51), 27381-27391. doi: 10.1016/j.ijhydene.2020.07.136
2020
Journal Article
A review on Pimelea poisoning of livestock
Gordon, Russell J., Hungerford, Natasha L., Laycock, Bronwyn and Fletcher, Mary T. (2020). A review on Pimelea poisoning of livestock. Toxicon, 186, 46-57. doi: 10.1016/j.toxicon.2020.07.023
2020
Journal Article
Geo-agriculture: reviewing opportunities through which the geosphere can help address emerging crop production challenges
Pratt, Chris, Kingston, Kate, Laycock, Bronwyn, Levett, Ian and Pratt, Steven (2020). Geo-agriculture: reviewing opportunities through which the geosphere can help address emerging crop production challenges. Agronomy, 10 (7) 971, 1-26. doi: 10.3390/agronomy10070971
2020
Journal Article
Modified poly(acrylic acid)-based hydrogels for enhanced mainstream removal of ammonium from domestic wastewater
Cruz, Heidy, Laycock, Bronwyn, Strounina, Ekaterina, Seviour, Thomas William, Oehmen, Adrian and Pikaar, Ilje (2020). Modified poly(acrylic acid)-based hydrogels for enhanced mainstream removal of ammonium from domestic wastewater. Environmental Science and Technology, 54 (15) acs.est.9b07032, 9573-9583. doi: 10.1021/acs.est.9b07032
2020
Journal Article
The volume of recyclable polyethylene terephthalate plastic in operating rooms – A one-month prospective audit
Wyssusek, Kerstin, Keys, Maggie, Laycock, Bronwyn, Avudainayagam, Anjana, Pun, Kenwick, Hansrajh, Sachin and van Zundert, André (2020). The volume of recyclable polyethylene terephthalate plastic in operating rooms – A one-month prospective audit. American Journal of Surgery, 220 (4), 853-855. doi: 10.1016/j.amjsurg.2020.05.011
2020
Journal Article
Designing for effective controlled release in agricultural products: new insights into the complex nature of the polymer–active agent relationship and implications for use
Levett, Ian, Liao, Minjie, Pratt, Chris, Redding, Matthew, Laycock, Bronwyn and Pratt, Steven (2020). Designing for effective controlled release in agricultural products: new insights into the complex nature of the polymer–active agent relationship and implications for use. Journal of the Science of Food and Agriculture, 100 (13) jsfa.10531, 4723-4733. doi: 10.1002/jsfa.10531
2020
Journal Article
Rapid and solvent-free synthesis of pH-responsive graft-copolymers based on wheat starch and their properties as potential ammonium sorbents
Siyamak, Samira, Luckman, Paul and Laycock, Bronwyn (2020). Rapid and solvent-free synthesis of pH-responsive graft-copolymers based on wheat starch and their properties as potential ammonium sorbents. International Journal of Biological Macromolecules, 149, 477-486. doi: 10.1016/j.ijbiomac.2020.01.202
2020
Journal Article
Mechanical stability of Polyhydroxyalkanoate (PHA)-based Wood Plastic Composites (WPCs)
Chan, Clement Matthew, Vandi, Luigi-Jules, Pratt, Steven, Halley, Peter, Richardson, Desmond, Werker, Alan and Laycock, Bronwyn (2020). Mechanical stability of Polyhydroxyalkanoate (PHA)-based Wood Plastic Composites (WPCs). Journal of Polymers and the Environment, 28 (5), 1571-1577. doi: 10.1007/s10924-020-01697-9
2020
Conference Publication
Adsorbents for the sequestration of the Pimelea toxin, simplexin
Gordon, Russell, Hungerford, Natasha L., Laycock, Bronwyn, Ouwerkerk, Diane and Fletcher, Mary T. (2020). Adsorbents for the sequestration of the Pimelea toxin, simplexin. The Third International Tropical Agriculture Conference TropAg 2019 , Brisbane, QLD Australia, 11-13 November 2019. Basel, Switzerland: MDPI. doi: 10.3390/proceedings2019036090
2020
Conference Publication
Modelling the controlled release of toxins in a rumen environment
Yuan, Yue, Gauthier, Emilie, Hungerford, Natasha L., Ouwerkerk, Diane , Fletcher, Mary T. and Laycock, Bronwyn (2020). Modelling the controlled release of toxins in a rumen environment. The Third International Tropical Agriculture Conference TropAg 2019 , Brisbane, QLD Australia, 11-13 November 2019. Basel, Switzerland: MDPI. doi: 10.3390/proceedings2019036089
2020
Journal Article
Pyrolysis of brominated polyethylene as an alternative carbon fibre precursor
Laycock, Bronwyn, Wang, Xiaoyu, Liu, Ru-Fen, Annamalai, Pratheep Kumar, Cork, Jorja, Derstine, Chris, Mills, Michael and McFarland, Eric W. (2020). Pyrolysis of brominated polyethylene as an alternative carbon fibre precursor. Polymer Degradation and Stability, 172 109057, 109057. doi: 10.1016/j.polymdegradstab.2019.109057
2020
Journal Article
Synthesis of starch graft-copolymers via reactive extrusion: process development and structural analysis
Siyamak, Samira, Laycock, Bronwyn and Luckman, Paul (2020). Synthesis of starch graft-copolymers via reactive extrusion: process development and structural analysis. Carbohydrate Polymers, 227 115066, 115066. doi: 10.1016/j.carbpol.2019.115066
2019
Journal Article
Assessing the effect of aromatic residues placement on α-helical peptide structure and nanofibril formation of 21-mer peptides
Solemanifar, Armin, Nguyen, Tuan A.H., Laycock, Bronwyn, Shewan, Heather Margaret, Donose, Bogdan Constantin and Creasey, Rhiannon C. G. (2019). Assessing the effect of aromatic residues placement on α-helical peptide structure and nanofibril formation of 21-mer peptides. Molecular Systems Design and Engineering, 5 (2), 521-531. doi: 10.1039/c9me00082h
2019
Journal Article
The effect of methane and odd-chain fatty acids on 3-hydroxybutyrate (3HB) and 3-hydroxyvalerate (3HV) synthesis by a Methylosinus-dominated mixed culture
Luangthongkam, Pawarisa, Strong, Peter James, Syed Mahamud, Syarifah Nuraqmar, Evans, Paul, Jensen, Paul, Tyson, Gene, Laycock, Bronwyn, Lant, Paul Andrew and Pratt, Steven (2019). The effect of methane and odd-chain fatty acids on 3-hydroxybutyrate (3HB) and 3-hydroxyvalerate (3HV) synthesis by a Methylosinus-dominated mixed culture. Bioresources and Bioprocessing, 6 (1) 50. doi: 10.1186/s40643-019-0285-1
2019
Journal Article
Public attitudes towards bioplastics – knowledge, perception and end-of-life management
Dilkes-Hoffman, Leela, Ashworth, Peta, Laycock, Bronwyn, Pratt, Steven and Lant, Paul (2019). Public attitudes towards bioplastics – knowledge, perception and end-of-life management. Resources, Conservation and Recycling, 151 104479, 104479. doi: 10.1016/j.resconrec.2019.104479
2019
Conference Publication
Lignocellulosic biomass hydrothermal liquefaction to generate feedstock for polyhydroxyalkanoate production
Zhang, Tianlong, Batalha, Nuno, Pratt, Steven and Laycock, Bronwyn (2019). Lignocellulosic biomass hydrothermal liquefaction to generate feedstock for polyhydroxyalkanoate production. Appita Fibre Value Chain Conference 2019, Melbourne, VIC Australia, 10 - 12 December 2019. Macleod, VIC Australia: Appita.
2019
Journal Article
Thermophilic production of poly(3-hydroxybutyrate-co-3-hydrovalerate) by a mixed methane-utilizing culture
Luangthongkam, Pawarisa, Laycock, Bronwyn, Evans, Paul, Lant, Paul and Pratt, Steven (2019). Thermophilic production of poly(3-hydroxybutyrate-co-3-hydrovalerate) by a mixed methane-utilizing culture. New Biotechnology, 53, 49-56. doi: 10.1016/j.nbt.2019.06.008
Funding
Current funding
Past funding
Supervision
Availability
- Professor Bronwyn Laycock is:
- Available for supervision
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Available projects
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Not currently available
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Applications of polyhydroxyalkanoates in the circular economy
Supervision history
Current supervision
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Doctor Philosophy
Fermentation process for the synthesis and anaerobic degradation of polyhydroxyalkanoates
Principal Advisor
Other advisors: Professor Steven Pratt, Dr Clement Chan
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Doctor Philosophy
Rapid Switch for Plastics: Transitioning to a Zero-Waste Future
Principal Advisor
Other advisors: Professor Paul Lant, Professor Steven Pratt, Dr Clement Chan
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Doctor Philosophy
Novel PHA based materials
Principal Advisor
Other advisors: Professor Paul Lant, Professor Steven Pratt, Dr Ian Levett
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Doctor Philosophy
An Investigation into Wheat Starch Oxidation via Reactive Extrusion
Principal Advisor
Other advisors: Professor Peter Halley
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Doctor Philosophy
Degradation of biodegradable plastics in aquatic environments
Principal Advisor
Other advisors: Professor Paul Lant, Professor Steven Pratt, Dr Clement Chan
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Doctor Philosophy
Development of sustainable biodegradable products based on PHA
Principal Advisor
Other advisors: Professor Paul Lant, Professor Steven Pratt, Dr Celine Chaleat
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Doctor Philosophy
Fermentation process for the synthesis and anaerobic degradation of polyhydroxyalkanoates
Principal Advisor
Other advisors: Professor Steven Pratt, Dr Clement Chan
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Doctor Philosophy
Advancing the circular economy: phosphorus recycling and next-generation fertilisers
Associate Advisor
Other advisors: Professor Gary Schenk, Professor Susanne Schmidt
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Doctor Philosophy
Sustainable Agriculture and the Phosphorus Bioeconomy
Associate Advisor
Other advisors: Professor Gary Schenk, Professor Susanne Schmidt
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Doctor Philosophy
Understanding the extensional rheology of biodegradable polymers: A study for enhancing film blowing of polyhydroxyalkanoates (PHAs)
Associate Advisor
Other advisors: Professor Paul Lant, Professor Steven Pratt
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Doctor Philosophy
Advanced bioplastic materials for a sustainable plastics future
Associate Advisor
Other advisors: Professor Steven Pratt, Professor Paul Lant
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Doctor Philosophy
PHA materials development
Associate Advisor
Other advisors: Professor Paul Lant, Professor Steven Pratt
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Doctor Philosophy
PHA in the Circular Economy
Associate Advisor
Other advisors: Professor Paul Lant, Dr Celine Chaleat, Professor Steven Pratt
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Doctor Philosophy
Structure-property-end of life performances of starch-based films
Associate Advisor
Other advisors: Professor Darren Martin, Dr Emilie Gauthier, Professor Peter Halley
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Doctor Philosophy
Biopolymer production from syngas and carbon dioxide/hydrogen by purple phototrophic bacteria
Associate Advisor
Other advisors: Professor Steven Pratt, Professor Damien Batstone
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Doctor Philosophy
Green additives and fillers for environmentally benign biocomposites
Associate Advisor
Other advisors: Professor Paul Lant, Dr Clement Chan, Professor Steven Pratt
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Doctor Philosophy
Lifetimes of bioplastics in natural and engineered environments
Associate Advisor
Other advisors: Professor Steven Pratt, Dr Clement Chan, Professor Paul Lant
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Doctor Philosophy
Studying end of life options for biopolymers
Associate Advisor
Other advisors: Dr Emilie Gauthier, Professor Peter Halley
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Doctor Philosophy
Sustainable Agriculture and the Phosphorus Bioeconomy
Associate Advisor
Other advisors: Professor Gary Schenk, Professor Susanne Schmidt
Completed supervision
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2025
Doctor Philosophy
Fermentation process for the synthesis and anaerobic degradation of polyhydroxyalkanoates
Principal Advisor
Other advisors: Professor Steven Pratt, Dr Clement Chan
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2023
Doctor Philosophy
Chemical Synthesis and Characterization of High Molecular Weight Polyhydroxyalkanoate-b-Polyhydroxyalkanoate Block Copolymers
Principal Advisor
Other advisors: Professor Steven Pratt, Dr Clement Chan
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2023
Doctor Philosophy
Modelling the Controlled Release of Toxins within a Rumen Environment
Principal Advisor
Other advisors: Emerita Professor Mary Fletcher
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2021
Doctor Philosophy
Bio-Inspired Conducting Peptide Nanowires
Principal Advisor
Other advisors: Dr Tuan Nguyen
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2021
Master Philosophy
Drivers and Barriers in the Deployment of Lignocellulose waste-derived liquid fuel in Australia
Principal Advisor
Other advisors: Dr Joe Lane, Professor Steven Pratt, Dr Luigi Vandi
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2020
Doctor Philosophy
Functional starch-based hydrogels: Renewable material solutions for wastewater and agriculture industries
Principal Advisor
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2020
Doctor Philosophy
Understanding the mechanisms that control the release of a soluble crystalline agrichemical extruded with biopolymers
Principal Advisor
Other advisors: Professor Steven Pratt
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2020
Doctor Philosophy
Development of Novel Polyhydroxyalkanoate Materials
Principal Advisor
Other advisors: Professor Paul Lant, Professor Steven Pratt
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2020
Doctor Philosophy
Exploring the Role of Biodegradable Plastics
Principal Advisor
Other advisors: Professor Paul Lant, Professor Steven Pratt
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2019
Doctor Philosophy
Development of Bio-derived and Biodegradable Polyhydroxyalkanoate (PHA)-based Wood Plastic Composites (WPCs)
Principal Advisor
Other advisors: Professor Peter Halley, Professor Steven Pratt, Dr Luigi Vandi
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2018
Doctor Philosophy
Understanding and predicting environmental effects on degradation of oxo-degradable polyethylene blown films
Principal Advisor
Other advisors: Professor Peter Halley
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2025
Doctor Philosophy
Sustainable Agriculture and the Phosphorus Bioeconomy
Associate Advisor
Other advisors: Professor Gary Schenk, Professor Susanne Schmidt
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2024
Doctor Philosophy
Mitigation of Pimelea poisoning of livestock using adsorbents
Associate Advisor
Other advisors: Dr Natasha Hungerford, Emerita Professor Mary Fletcher
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2022
Doctor Philosophy
Liquid organic hydrogen carriers and their application on transfer hydrogenation and activation of metal-based catalysts
Associate Advisor
Other advisors: Dr Muxina Konarova, Professor Steven Pratt
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2020
Doctor Philosophy
Tailored Polymer Hydrogels for Mainstream Ammonium Recovery in Domestic Wastewater
Associate Advisor
Other advisors: Associate Professor Ilje Pikaar
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2019
Doctor Philosophy
Sustainable and High Performance Rigid Polyurethane Foams Based on Lignin
Associate Advisor
Other advisors: Dr Pratheep Kumar Annamalai, Professor Darren Martin
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2019
Doctor Philosophy
Spinifex Cellulose Nanofibres as a Sustainable Building Block for Carbon Materials
Associate Advisor
Other advisors: Dr Pratheep Kumar Annamalai, Professor Darren Martin
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2019
Doctor Philosophy
Biosynthesis of Polyhydroxyalkanoates (PHAs) in Methane-utilizing Mixed Cultures
Associate Advisor
Other advisors: Professor Paul Lant, Professor Steven Pratt
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2016
Doctor Philosophy
Composition of Mixed Culture PHA Biopolymers and Implications for Downstream Processing
Associate Advisor
Other advisors: Professor Peter Halley, Professor Steven Pratt
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2014
Doctor Philosophy
Polyhydroxyalkanoates (PHAs) from microbial subpopulations in mixed cultures
Associate Advisor
Other advisors: Professor Steven Pratt
Media
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