ArticleJournal of the American Chemical Society2026
Depolymerization of Commercial Polymethacrylates Triggered by Hydroperoxides.
Article in Journal of the American Chemical Society, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Acid-assisted depolymerization of RAFT-derived PMMA.Chemical science · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
Abstract
The chemical recycling of poly(methyl methacrylate) (PMMA) and related polymethacrylates is challenging due to the all-carbon backbone, which resists thermal and chemical degradation under mild conditions. Existing depolymerization strategies either require modification of the PMMA structure or rely on photochemical activation, limiting versatility and practical scalability. Herein, we report a thermally driven, hydrogen-atom-transfer (HAT)-initiated depolymerization of unmodified commercial polymethacrylates. Simple hydroperoxides, tert-butyl hydroperoxide (TBHP) and cumene hydroperoxide (CHP), serve as radical precursors, requiring no photoactivation, no specialized chain ends, and no chlorinated solvents. At elevated temperatures, oxygen-centered radicals are generated and abstract hydrogen atoms from the polymer chains. This triggers β-fragmentation and initiates chain unzipping. At 220 °C with 10 mol % TBHP, 30% of the polymer remained, indicating 70% depolymerization. However, only 55% was in the form of intact monomer, and 15% was consumed by side reactions during long exposure to high temperature. This approach was extended to poly(butyl methacrylate), poly(benzyl methacrylate), and poly(phenyl methacrylate), and demonstrated moderate tolerance to ambient oxygen levels. These results establish thermally triggered HAT depolymerization as a simple approach for the depolymerization of commercial polymethacrylates.
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.