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Problem-Based Learning in Sustainable Chemistry: A Student Startup Model with PET as a Case Study.

Problem-Based Learning in Sustainable Chemistry: A Student Startup Model with PET as a Case Study.
Contributors
David Palomas
Lecturer | University College London
Learning Objets
Summary
This paper presents a problem-based learning (PBL) framework designed to enhance sustainable chemistry education through a simulated student startup model. Implemented in the MSc Sustainable Chemistry programme at UCL, the activity uses polyethylene terephthalate (PET) as a case study to explore circular economy principles and green chemistry strategies. Students adopt professional roles within startup teams to collaboratively design sustainable production and recycling processes. Delivered in a flipped classroom format, the model promotes active learning, career awareness, and interdisciplinary skill development. Preliminary results from two pilot cohorts show high engagement and positive student feedback, with many graduates pursuing careers in sustainability-focused roles. While the sample size limits generalisation, the model demonstrates strong potential for broader application. Future directions include scaling to larger cohorts, adapting the framework to laboratory-based modules, and fostering cross-institutional collaboration. This approach offers a flexible and impactful template for embedding sustainability and circularity into chemical education.

Full citation: Palomas, D., & Sonmez, B. (2025). Problem-Based Learning in Sustainable Chemistry: A Student Startup Model with PET as a Case Study. Sustainability & Circularity NOW, a-2761-3976. https://doi.org/10.1055/a-2761-3976
Keyword Tags
Circular Economy
Sustainable Design
Product Design
Polyethylene Terephthalate (PET)
Link to external
Link to open access journal article
Learning Goals/Student Objectives
-- Describe the key chemical components and processes involved in conventional and biomass-based PET production.
-- Explain the principles of circular economy and how they apply to the sustainable production and recycling of PET.
-- Apply green and sustainable chemistry principles to propose a biomass-based synthetic route for PET production.
-- Critically evaluate the environmental, economic, and technical feasibility of different biomass sources and recycling strategies for PET.
-- Design a comprehensive startup strategy including chemical process, sustainability assessment, market analysis, and intellectual property considerations, for a company producing sustainable PET.
Object Type
Journal articles
Audience
Upper/Advanced Undergraduate
Graduate or Professional Training (e.g., Postdoctoral Fellows, Early-Career Professionals)
Common pedagogies covered
Context-based learning
Hands-on learning
Problem-based learning
Student-centered learning
Green Chemistry Principles
Designing Safer Chemicals
Use of Renewable Feedstocks
U.N. Sustainable Development Goals (SDGs)
Responsible Consumption and Production
Safety Precautions, Hazards, and Risk Assessment
n/a
NGSS Standards, if applicable
n/a

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Laura L. Barnes
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Moderation state
Published