ReviewBiodegradation2026
Waste-derived and recycled shape-memory polymers and composites: feedstocks, processing, performance, and circularity challenges.
Review in Biodegradation, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Shape-memory polymers and polymer composites can recover a programmed shape in response to external stimuli and have been investigated for applications including actuators, sensors, adaptive structures, and 4D printing. The majority of well-established systems use virgin petrochemical feedstocks, which has prompted interest in waste-derived and recycled alternatives. This review examines waste-derived and recycled shape-memory polymers and polymer composites prepared from plastic waste, agricultural residues, industrial by-products, e-waste, and waste cooking oil. Feedstocks are distinguished as waste-derived, recycled, upcycled, virgin bio-based, or hybrid systems. Reported processing routes, shape-memory performance, thermal and mechanical properties, cyclic durability, and application status are evaluated where data are available. Selected systems show high shape-fixity and shape-recovery values; however, comparisons remain constrained by differences in testing protocols, feedstock quality, and incomplete reporting of recovery stress, long-term aging, and repeated-cycle performance. The review also discusses contamination control, recyclability, reprocessability, biodegradability, regulatory considerations, and the need for standardized testing, life-cycle assessment, and techno-economic analysis. Waste-derived and recycled shape-memory polymers may support circular-material development, but their environmental and practical advantages require case-specific validation.
Indexed as
Identifiers
42803854What 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.