Significant Performance Enhancement of Polymer Resins by Bioinspired Dynamic Bonding
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 18, 2017
- Source ID
- 10.1002/adma.201703026
Entities
People
- B. Kollbe Ahn
- Byeong‐su Kim
- Dong Woog Lee
- Eeseul Shin
- Emmanouela Filippidi
- J Herbert Waite
- Jacob Israelachvili
- Jin Soo Ahn
- Joan Emma Shea
- Keila Cunha
- Megan T. Valentine
- Roberto D. Lins
- Sung Won Ju
- Sungbaek Seo
- Zachary A. Levine
Organizations
- Federal University of Pernambuco
- Korea National Institute of Health
- Materials Research Laboratory
- National Research Foundation
- National Science Foundation
- Office of Naval Research
- Pusan National University
- Seoul National University
- Ulsan National Institute of Science and Technology
- University of California