Renewable, Degradable, and Chemically Recyclable Cross-Linked Elastomers
Abstract
Most commercial elastomers, typified by vulcanized natural rubber, are cross-linked polymers and as such cannot easily be reprocessed or recycled. While some are derived from renewable resources, the majority are produced from petroleum feedstocks and do not easily degrade. In this study, renewable elastomers based on β-methyl-δ-valerolactone were produced using two different methodologies: (1) tandem copolymerization/cross-linking with a bis(six-membered cyclic carbonate); (2) cross-linking of a linear poly(β-methyl-δ-valerolactone) homopolymer with a free-radical generator. The mechanical properties of these materials were investigated; tensile strengths of up to 12 MPa and elongations of up to 2000% were observed. Inclusion of a filler (fumed silica) was used to enhance the performance of the elastomers without significant loss of elasticity, with some composites exhibiting tensile strengths nearly double that of the neat elastomer. Aqueous degradation studies indicated that the materials were capable of degradation in acidic and basic conditions at 60 °C. Moreover, these cross-linked elastomers can also be chemically recycled, yielding monomer in high purity and yield (>91% and 93%, respectively).
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Based on this chemistry, they developed chemically recyclable thermoplastic polyurethanes and novel polyester elastomers.
“Based on this chemistry, they developed chemically recyclable thermoplastic polyurethanes 161 and novel polyester elastomers 162 .”
From Catalysis as an Enabling Science for Sustainable Polymers (2018) · cites this paper as [162]
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Catalysis as an Enabling Science for Sustainable Polymers
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- Authors
- Brutman, J. P., De Hoe, G. X., Schneiderman, D. K., Le, T. N., & Hillmyer, M. A.
- Affiliations
- University of Minnesota (US)
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
- Corresponding author
- Hillmyer, Marc A.
- Venue
- Industrial & Engineering Chemistry Research
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-10-11
- Volume
- 55
- Issue
- 42
- Pages
- 11097-11106
- ISSN
- 0888-5885 (ISSN-L)
- 1520-5045
- OpenAlex
- W2530424018
- Cited by
- 92
- References
- 52
- Citations by year
- 2026: 2 · 2025: 6 · 2024: 14 · 2023: 14 · 2022: 12 · 2021: 6 · 2020: 11 · 2019: 7 · 2018: 9 · 2017: 11
- FWCI
- 3.68
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Industrial & Engineering Chemistry Research (publishedVersion)
- Funders
- Division of Chemistry (CHE-1413862)
- Topics
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Keywords
- crosslinked elastomers, chemical recycling, aqueous degradation, radical crosslinking, tensile strength, elongation at break, monomer recovery
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