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Lee, Dong Woog
Interfacial Physics and Chemistry Laboratory
Research Interests
  • Bio/Bio-inspired adhesion and lubrication, friction of skin and sensory perception, wetting behavior of various surfaces, surface physics and chemistry of low-dimensional materials

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Significant Performance Enhancement of Polymer Resins by Bioinspired Dynamic Bonding

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Title
Significant Performance Enhancement of Polymer Resins by Bioinspired Dynamic Bonding
Author
Seo, SungbaekLee, Dong WoogAhn, Jin SooCunha, KeilaFilippidi, EmmanouelaJu, Sung WonShin, EeseulKim, Byeong-SuLevine, Zachary A.Lins, Roberto D.Israelachvili, Jacob N.Waite, J. HerbertValentine, Megan T.Shea, Joan EmmaAhn, B. Kollbe
Keywords
adhesion; dynamic bonding; mussels; primer; surfaces
Issue Date
201708
Publisher
WILEY-V C H VERLAG GMBH
Citation
ADVANCED MATERIALS, v.29, no.39, pp.1703026 -
Abstract
Marine mussels use catechol-rich interfacial mussel foot proteins (mfps) as primers that attach to mineral surfaces via hydrogen, metal coordination, electrostatic, ionic, or hydrophobic bonds, creating a secondary surface that promotes bonding to the bulk mfps. Inspired by this biological adhesive primer, it is shown that a ≈1 nm thick catecholic single-molecule priming layer increases the adhesion strength of crosslinked polymethacrylate resin on mineral surfaces by up to an order of magnitude when compared with conventional primers such as noncatecholic silane- and phosphate-based grafts. Molecular dynamics simulations confirm that catechol groups anchor to a variety of mineral surfaces and shed light on the binding mode of each molecule. Here, a ≈50% toughness enhancement is achieved in a stiff load-bearing polymer network, demonstrating the utility of mussel-inspired bonding for processing a wide range of polymeric interfaces, including structural, load-bearing materials.
URI
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DOI
http://dx.doi.org/10.1002/adma.201703026
ISSN
0935-9648
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