ArticleAngewandte Chemie (International ed. in English)2025
Reassessing the Photochemical Upcycling of Polystyrene Using Acridinium Salts.
Article in Angewandte Chemie (International ed. in English), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
9 citing papers in PubMed.
- Catalyst-free, autoinductive photochemical upcycling of aromatic polymers and mixed plastics via autosensitization.Science advances · 2026Article
- Natural Sunlight-Driven Synthesis of Conjugated Microporous Polymers via Electron Donor-Acceptor Complexes for Highly Efficient Catalytic Upcycling of Real-World Plastic Waste.Angewandte Chemie (International ed. in English) · 2026Article
- Photochemical Aerobic Upcycling of Polystyrene Plastics via Indium Salt-Mediated Synergistic Catalysis.ChemSusChem · 2026Article
- Synergistic Effects of Electricity and Light for Efficient Iron-Catalyzed Recycling of Polystyrene Waste.Angewandte Chemie (International ed. in English) · 2026Article
- Harnessing Colloidal Dispersion for Laccase-Driven Enzymatic Depolymerization of Polystyrene.Angewandte Chemie (International ed. in English) · 2026Article
- Upcycling waste polystyrene to adipic acid through a hybrid chemical and biological process.Nature communications · 2025Article
- Grafted Disulfide-Linked Linear Polymers for Heterogeneous Thiyl Radical Photocatalysis.Chemistry (Weinheim an der Bergstrasse, Germany) · 2025Article
- Facile visible-light upcycling of diverse waste plastics using a single organocatalyst with minimal loadings.Nature communications · 2025Article
- Reassessing the Photochemical Upcycling of Polystyrene Using Acridinium Salts.Angewandte Chemie (International ed. in English) · 2025Article
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
Polystyrene (PS) is a commodity plastic recalcitrant to chemical recycling or upcycling processes. Approaches aimed at deconstructing PS by photocatalytic means struggle to generate high-energy species capable of cleaving the robust C-H and C-C bonds of PS. We show that 9-mesityl-10-methylacridinium perchlorate (MA) is capable of upcycling various grades of PS substrates into up to 40 % benzoic acid (BAc), formic acid (FA) and small proportions of acetophenone (ACP), under visible light (456 nm) or through solar radiation. Time-resolved emission and absorption spectroscopy evidence that a reaction with oxygen is the primary photochemical step in oxygen-saturated solutions, accounting for 77 % of the photons absorbed vs. 1 % for the direct reaction with PS (0.303 M in repeating units). These results are in agreement with a mechanism in which MA-mediated photo upcycling of PS to BAc occurs through the abstraction of benzylic H atoms by reactive oxygen species generated by energy or electron transfer from the excited state of MA. Addition of triplet O
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