Journal
POLYMERS
Volume 14, Issue 13, Pages -Publisher
MDPI
DOI: 10.3390/polym14132724
Keywords
bioinspired bottlebrush polymers; aqueous boundary lubrication; friction; wear resistance
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Funding
- National Natural Science Foundation of China (NSFC) [21902098]
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This review summarizes recent experimental investigations of interfacial lubrication properties of surfaces coated with bottlebrush bio-lubricants and bioinspired bottlebrush polymers. It also discusses recent advances in understanding intermolecular synergy in aqueous lubrication.
An extremely efficient lubrication system is achieved in synovial joints by means of bio-lubricants and sophisticated nanostructured surfaces that work together. Molecular bottlebrush structures play crucial roles for this superior tribosystem. For example, lubricin is an important bio-lubricant, and aggrecan associated with hyaluronan is important for the mechanical response of cartilage. Inspired by nature, synthetic bottlebrush polymers have been developed and excellent aqueous boundary lubrication has been achieved. In this review, we summarize recent experimental investigations of the interfacial lubrication properties of surfaces coated with bottlebrush bio-lubricants and bioinspired bottlebrush polymers. We also discuss recent advances in understanding intermolecular synergy in aqueous lubrication including natural and synthetic polymers. Finally, opportunities and challenges in developing efficient aqueous boundary lubrication systems are outlined.
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