Oxidatively Stable Polyolefin Thermoplastics and Elastomers for Biomedical Applications

Yanzhao Wang, Marc A. Hillmyer

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Statistical copolymers were prepared by the Ring Opening Metathesis coPolymerization (ROMP) of (Z)-5,5-dimethylcyclooct-1-ene and cis-cyclooctene. Subsequent hydrogenation yielded poly(ethylene-co-isobutylene) (PEIB) materials. The feed ratio of the comonomers controls the degree of branching and resulting thermal and mechanical properties of the PEIB samples. Oxidative degradation studies, conducted under accelerated in vitro conditions were used to assess and predict their long-term biostability. Relative to commercial poly(ether urethanes) and a structurally similar polyolefin, poly(ethylene-co-1-butylene), the PEIB samples showed much better oxidative resistance. The facile synthesis, improved stability, and excellent mechanical performance of these PEIB materials bode well for their use in biomedical applications that require long-term biostability.

Original languageEnglish (US)
Pages (from-to)613-618
Number of pages6
JournalACS Macro Letters
Issue number6
StatePublished - Jun 20 2017

Bibliographical note

Publisher Copyright:
© 2017 American Chemical Society.


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