A broadly applicable cross-linker for aliphatic polymers containing C–H bonds
| dc.contributor.author | Lepage, Mathieu L. | |
| dc.contributor.author | Simhadri, Chakravarthi | |
| dc.contributor.author | Liu, Chang | |
| dc.contributor.author | Takaffoli, Mahdi | |
| dc.contributor.author | Bi, Liting | |
| dc.contributor.author | Crawford, Bryn | |
| dc.contributor.author | Milani, Abbas S. | |
| dc.contributor.author | Wulff, Jeremy E. | |
| dc.date.accessioned | 2020-07-06T17:39:13Z | |
| dc.date.available | 2020-07-06T17:39:13Z | |
| dc.date.copyright | 2019 | en_US |
| dc.date.issued | 2019 | |
| dc.description.abstract | Addition of molecular cross-links to polymers increases mechanical strength and improves corrosion resistance. However, it remains challenging to install cross-links in low-functionality macromolecules in a well-controlled manner. Typically, high-energy processes are required to generate highly reactive radicals in situ, allowing only limited control over the degree and type of cross-link. We rationally designed a bis-diazirine molecule whose decomposition into carbenes under mild and controllable conditions enables the cross-linking of essentially any organic polymer through double C–H activation. The utility of this molecule as a cross-linker was demonstrated for several diverse polymer substrates (including polypropylene, a low-functionality polymer of long-standing challenge to the field) and in applications including adhesion of low–surface-energy materials and the strengthening of polyethylene fabric. | en_US |
| dc.description.reviewstatus | Reviewed | en_US |
| dc.description.scholarlevel | Faculty | en_US |
| dc.description.sponsorship | Operating funds were 5 provided by Mitacs Canada (grant #IT11982) and Epic Ventures Inc. | en_US |
| dc.identifier.citation | Lepage, M. L., Simhadri, C., Liu, C., Takaffoli, M., Bi, L., Crawford, B., Milani, A. S., & Wulff, J. E. (2019). A broadly applicable cross-linker for aliphatic polymers containing C–H bonds. Science, 366(6467), 875-878. https://doi.org/10.1126/science.aay6230 | en_US |
| dc.identifier.uri | https://doi.org/10.1126/science.aay6230 | |
| dc.identifier.uri | http://hdl.handle.net/1828/11911 | |
| dc.language.iso | en | en_US |
| dc.publisher | Science | en_US |
| dc.subject.department | Department of Chemistry | |
| dc.title | A broadly applicable cross-linker for aliphatic polymers containing C–H bonds | en_US |
| dc.type | Postprint | en_US |