The DOI matches its Crossref record; 28 of the 28 references it cites were found in a registry or an index.
Polylactide Vitrimers
Open accessAbstract
Abstract While much research has been aimed at new approaches to the healing of cross-linked polymers, there is a dearth of effort in the healing of renewable cross-linked polymers. In this study, the healing ability of renewable polylactide-based vitrimers containing Sn(Oct)2 was investigated. The vitrimers were prepared from hydroxyl-terminated star-shaped poly((±)-lactide) samples that were cross-linked with methylenediphenyl diisocyanate. Cross-linked samples were prepared with isocyanate:hydroxyl (IC:OH) ratios of 0.6:1 to 1.1:1 and initial catalyst:hydroxyl (Sn(Oct)2:OH) ratios ranging from 0.013:1 to 0.050:1. The plateau modulus and Tg values for the cross-linked samples decreased with decreasing IC:OH ratio. The materials were subjected to stress relaxation analyses, which confirmed that the materials not only were vitrimeric in nature but also exhibited remarkably short characteristic relaxation times of less than 50 s at 140 °C. Finally, vitrimers fractured in uniaxial tensile testing were healed by compression molding and exhibited up to 67% recovery of ultimate elongation, up to 102% recovery of tensile strength, and up to 133% recovery of tensile modulus values.
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Cites
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Denissen, W., Rivero, G., Nicolaÿ, R., Leibler, L., Winne, J. M., & Du Prez, F. E. (2015) · Advanced Functional Materials · doi:10.1002/adfm.201404553 · Cited by 1,121
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Scheutz, G. M., Lessard, J. J., Sims, M. B., & Sumerlin, B. S. (2019) · Journal of the American Chemical Society · doi:10.1021/jacs.9b07922 · Cited by 934
Mechanically Activated, Catalyst-Free Polyhydroxyurethane Vitrimers
Fortman, D. J., Brutman, J. P., Cramer, C. J., Hillmyer, M. A., & Dichtel, W. R. (2015) · Journal of the American Chemical Society · doi:10.1021/jacs.5b08084 · Cited by 811
Self-citation
Metadata
- Authors
- Brutman, J. P., Delgado, P. A., & Hillmyer, M. A.
- Venue
- ACS Macro Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-06-12
- Volume
- 3
- Issue
- 7
- Pages
- 607-610
- ISSN
- 2161-1653 (ISSN-L)
- OpenAlex
- W4249871964
- Cited by
- 513
- References
- 28
- FWCI
- 13.57
- Type
- journal article
- Language
- en
- Open access
- hybrid
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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