Jump to main content
Jump to site search

Issue 42, 2017
Previous Article Next Article

Dual stimuli responsive self-healing and malleable materials based on dynamic thiol-Michael chemistry

Author affiliations

Abstract

Thiol-maleimide adducts have been used as dynamic crosslinkers to form soft, elastic, and stimuli responsive polymeric materials. Thiol-Michael adducts can undergo dynamic exchange at elevated temperature or elevated pH values. Due to the dynamic behaviour of thiol-Michael adducts, crosslinked polymeric materials display significant healing after cutting into half, and malleability upon exposure to solutions of elevated pH. These materials are also thermally responsive, showing self-healing properties and malleability at high temperatures (90 °C). The self-healing properties of these polymer materials are significantly higher than materials with non-dynamic crosslinkers. In addition, in mechanical stability experiments, these materials showed creep resistance and complete creep recovery at room temperature and pressure. These results indicate that the thiol-Michael reaction is dynamic and reversible in response to thermal and pH stimuli. These stimuli responsive self-healing, elastic, malleable, and mechanically stable polymeric materials open the door to have potential utilization in different applications such as coatings or elastomers with extended lifetimes.

Graphical abstract: Dual stimuli responsive self-healing and malleable materials based on dynamic thiol-Michael chemistry

Back to tab navigation

Supplementary files

Publication details

The article was received on 11 Aug 2017, accepted on 05 Oct 2017 and first published on 10 Oct 2017


Article type: Paper
DOI: 10.1039/C7PY01356F
Citation: Polym. Chem., 2017,8, 6534-6543
  •   Request permissions

    Dual stimuli responsive self-healing and malleable materials based on dynamic thiol-Michael chemistry

    P. Chakma, L. H. Rodrigues Possarle, Z. A. Digby, B. Zhang, J. L. Sparks and D. Konkolewicz, Polym. Chem., 2017, 8, 6534
    DOI: 10.1039/C7PY01356F

Search articles by author

Spotlight

Advertisements