Processable epoxy-telechelic polyalkenamers and polyolefins for photocurable elastomers

Luke A. Kassekert, Claire E. Dingwell, Guilhem X. De Hoe, Marc A. Hillmyer

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A series of epoxy-telechelic polyalkenamers with varying molar masses were synthesized by ring-opening metathesis polymerization of 3-ethylcyclooctene using a diepoxy-functionalized symmetric chain transfer agent with p-benzoquinone as an additive. An epoxy-telechelic polyolefin was also synthesized using 3-ethylcyclooctene and a carboxybenzyl-protected diol chain transfer agent by ring-opening metathesis polymerization followed by post-polymerization modification. The prepolymers were crosslinked with UV light in the presence of photoacid generators, and network formation was monitored by photorheology. The stiffness and ultimate elongation of the resulting elastomers was tuned by varying molar mass and backbone unsaturation of the prepolymer.

Original languageEnglish (US)
Pages (from-to)712-720
Number of pages9
JournalPolymer Chemistry
Volume11
Issue number3
DOIs
StatePublished - Jan 21 2020

Bibliographical note

Funding Information:
We thank The Dow Chemical Company for financial support of this research. We thank Dr. Jeff Munro, Dr. Colin Li Pi Shan, Dr. Thomas Peterson, and Dr. Christopher Thurber for their guidance and advice. All rheology was carried out in the College of Science and Engineering Polymer Characterization Facility, University of Minnesota, which has received capital equipment funding from the NSF through the UMN MRSEC program under Award Number DMR-1420013. We thank Dr. David Giles for his guidance and helpful discussions regarding photorheology and oscillatory shear rheology.

How much support was provided by MRSEC?

  • Shared

Reporting period for MRSEC

  • Period 6

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