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Issue 38, 2018
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Velcro-mimicking surface based on polymer loop brushes

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We herein report the fabrication of a Velcro-mimicking surface based on polymer brushes. Using poly(ε-caprolactone) (PCL) as the model polymer, polymer loop brushes (PLBs) and singly tethered polymer brushes (STPBs) with nearly identical tethering point density and brush heights were synthesized using a polymer single crystal (PSC)-assisted grafting-to method. Atomic force microscopy-based single molecular force spectroscopy (AFM-SMFS) and macroscale lap-shear experiments both demonstrated that the PLBs led to strong adhesion that is up to ∼10 times greater than the STPBs, which is attributed to the enriched chain entanglement between the probing polymer and the brushes. We envisage that our results will pave the way towards a new materials design for strong adhesives and nanocomposites.

Graphical abstract: Velcro-mimicking surface based on polymer loop brushes

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The article was received on 09 Jul 2018, accepted on 11 Sep 2018 and first published on 12 Sep 2018

Article type: Paper
DOI: 10.1039/C8NR05526B
Citation: Nanoscale, 2018,10, 18269-18274

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    Velcro-mimicking surface based on polymer loop brushes

    T. Zhou, B. Han, H. Qi, Q. Pan, D. M. Smith, L. Han and C. Y. Li, Nanoscale, 2018, 10, 18269
    DOI: 10.1039/C8NR05526B

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