Tracking Chain Populations and Branching Structure during Polyethylene Deconstruction Processes Article Swipe
Alex H. Balzer
,
Zachary R. Hinton
,
Brandon C. Vance
,
Dionisios G. Vlachos
,
LaShanda T. J. Korley
,
Thomas H. Epps
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1021/acscentsci.4c00951
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1021/acscentsci.4c00951
Catalytic deconstruction has emerged as a promising solution to valorize polyethylene (PE) waste into valuable products, such as oils, fuels, surfactants, and lubricants. Unfortunately, commercialization has been hampered by inadequate optimization of PE deconstruction due to an inability to either truly characterize the polymer transformations or adjust catalytic conditions to match the ever-evolving product distribution and associated property changes. To address these challenges, a detailed analysis of molar mass distributions and thermal characterization was developed herein and applied to low-density polyethylene (LDPE) deconstruction to enable more thorough identification of polymer chain characteristics within the solids (e.g., changes in molar mass or branching structure). For example, LDPE hydrocracking exhibited comparable rates of polymer chain isomerization and C-C bond scission, and the solids generated possessed a broadened molar mass distribution with a disappearance of a significant fraction of highly linear segments, indicating polymer-structure-dependent interactions with the catalyst. Solids analysis from pyrolysis yielded starkly different results, as the resulting solids were devoid of unreacted polymer chains and had a narrowed molar mass distribution even at short times (e.g., 0.2 h). By tracking the polymeric deconstruction behavior as a function of reaction type, time, and catalyst design, we mapped critical pathways toward PE valorization.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1021/acscentsci.4c00951
- OA Status
- diamond
- Cited By
- 9
- References
- 72
- Related Works
- 10
- OpenAlex ID
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All OpenAlex metadata
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https://openalex.org/W4401734937Canonical identifier for this work in OpenAlex
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https://doi.org/10.1021/acscentsci.4c00951Digital Object Identifier
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Tracking Chain Populations and Branching Structure during Polyethylene Deconstruction ProcessesWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
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2024-08-21Full publication date if available
- Authors
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Alex H. Balzer, Zachary R. Hinton, Brandon C. Vance, Dionisios G. Vlachos, LaShanda T. J. Korley, Thomas H. EppsList of authors in order
- Landing page
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https://doi.org/10.1021/acscentsci.4c00951Publisher landing page
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YesWhether a free full text is available
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diamondOpen access status per OpenAlex
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https://doi.org/10.1021/acscentsci.4c00951Direct OA link when available
- Concepts
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Molar mass, Polyethylene, Low-density polyethylene, Branching (polymer chemistry), Polymer, Materials science, Chemical engineering, Molar mass distribution, Polymer chemistry, Chemistry, Organic chemistry, Composite material, EngineeringTop concepts (fields/topics) attached by OpenAlex
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9Total citation count in OpenAlex
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2025: 8, 2024: 1Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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