Tribological properties of polymer brushes from bio-based monomers

Yuji Higaki, Ryosuke Okazaki, Motoyasu Kobayashi, Atsushi Takahara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Bio-based plastics can be designed with superior hardness and thermal properties comparable to conventional petroleum-based plastics. However, bio-based plastics often meet the processing challenges, and the brittleness limits the industrial application. A high density poly(α-methylene-γ-butyrolactone) (PMBL) brush film was prepared, and the molecular aggregation structure and tribological properties were studied. The PMBL and poly(methyl methacrylate) (PMMA) brushes exhibited a thickness larger than random coil dimension but lower than extended-chain conformation, indicating that a densely packed brush layer was formed and the chain conformation has been stretched almost perpendicular to the substrate. The PMBL brushes exhibited stable friction coefficient of ∼ 0.2 after 400 friction cycles, demonstrating a better wear resistance. Although the slight wear track was formed on the brush surface during the friction test, a decreased amount of wear debris and an overall smoother wear track were observed. This suggests that the PMBL brushes have a potential for practical scratch resistant applications. This is an abstract of a paper presented at the 2013 STLE Annual Meeting & Exhibition (Detroit, MI 5/5-9/2013).

Original languageEnglish
Title of host publicationSociety of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2013
PublisherSociety of Tribologists and Lubrication Engineers
Pages242-243
Number of pages2
Publication statusPublished - 2013
EventSociety of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2013 - Detroit, MI, United States
Duration: May 5 2013May 9 2013

Other

OtherSociety of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2013
Country/TerritoryUnited States
CityDetroit, MI
Period5/5/135/9/13

All Science Journal Classification (ASJC) codes

  • Filtration and Separation

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