An In-Built Depolymerisation Solution for Polyethylene Waste

In this project we will embed the enzyme ‘manganese peroxidase’ into polyethylene films, using poly(olefin-block-acrylate) copolymers to encapsulate the enzyme and interface between enzyme and bulk polyethylene. Using high throughput polymer screening and 2D-NMR techniques that we developed, we will tune the copolymer design to

1. provide thermal stability to the enzyme, and
2. direct a bias in the enzyme towards processive depolymerisation from the polymer chain end over random chain scission. Once embedded in PE, our enzymes should enable decomposition of the plastic to small molecules (such as CO2 and short chain alcohols / aldehydes) on demand, without formation of harmful microplastics.

The project involves both polymer chemistry and detailed physical characterisation of polymer-protein interactions. The team consists of researchers both at UoN (Chapman & Wanless) and in the USA at Miami University (Konkolewicz), and will provide good opportunities for travel.

Eligibility Criteria

BSc + honours or MSc in Chemistry (or related discipline), ideally with experience in polymer chemistry, NMR, and or protein modification.

The applicant will need to meet the minimum eligibility criteria for admission.

Application Procedure

Interested applicants should send an email expressing their interest along with scanned copies of their academic transcripts, CV, a brief statement of their research interests and a proposal that specifically links them to the research project.

Please send the email expressing interest to Robert.Chapman@newcastle.edu.au by 5pm on 01 March 2024.