Recyclable, Self-Strengthening Starch-Based Epoxy Vitrimer Facilitated by Exchangeable Disulfide Bonds from Garlic
SSRN, ISSN: 1556-5068
2022
- 1Citations
- 541Usage
- 3Captures
Metric Options: Counts1 Year3 YearSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
Epoxy vitrimers have emerged as a new class of self-healing, recyclable, and reprocessable materials, offering new opportunities to traditional epoxy thermosets by improving life-span and sustainability, while providing additional functionalities. Nevertheless, retaining the original mechanical performances remain difficult for vitrimers after several reprocessing cycles due to progressive changes in the vitrimers network during rearrangements. In this study, we designed a novel and more sustainable bio-based epoxy vitrimer synthesized from epoxidized starch amylopectin together with diallyl disulfide from garlic and a thiol (pentaerythritol tetrakis(3-mercaptopropionate) (PETMP)). Garlic dilallyl disulfide and PETMP enabled the formation of a recyclable, and reprocesseable, vitrimer network. The epoxy vitrimer displayed unprecedented self-strengthening after 5 recycling cycles (tensile strength increased over 900%) caused by the mechanically-induced homogeneization of the diallyl disulfide/thiol and the starch epoxy phases during the recycling process, thereby increasing the vitrimer cross-linking density during reformation. Reprocessing the vitrimer 5-times increased the mechanical and thermal properties, raising glass transition temperature, Young’s modulus, and tensile strength from 7 °C to 25 °C, 2.98 MPa to 268 MPa, and 1.87 MPa to 18.47 MPa, respectively. Hence, capitalizing on mechanically-induced phase homegeneization during the vitrimer reprocessing, this work introduces a strategy for the design of self-strengthening biobased and recyclable thermosets.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85179541389&origin=inward; http://dx.doi.org/10.2139/ssrn.4124872; https://www.ssrn.com/abstract=4124872; https://dx.doi.org/10.2139/ssrn.4124872; https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4124872; https://ssrn.com/abstract=4124872
Elsevier BV
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know