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Bending and Stretching Actuation of Soft Materials through Surface-Initiated Polymerization

Authors

  • Dr. Yuquan Zou,

    1. Centre for Blood Research, Department of Pathology and Laboratory of Medicine, Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z3 (Canada), Fax: (+1) 604-822-7742
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  • Adriel Lam,

    1. Department of Mechanical Engineering, University of British Columbia, Vancouver, BC V6T 1Z4 (Canada)
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  • Prof. Dr. Donald E. Brooks,

    1. Centre for Blood Research, Department of Pathology and Laboratory of Medicine, Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z3 (Canada), Fax: (+1) 604-822-7742
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  • Prof. Dr. A. Srikantha Phani,

    Corresponding author
    1. Department of Mechanical Engineering, University of British Columbia, Vancouver, BC V6T 1Z4 (Canada)
    • Department of Mechanical Engineering, University of British Columbia, Vancouver, BC V6T 1Z4 (Canada)
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  • Prof. Dr. Jayachandran N. Kizhakkedathu

    Corresponding author
    1. Centre for Blood Research, Department of Pathology and Laboratory of Medicine, Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z3 (Canada), Fax: (+1) 604-822-7742
    • Centre for Blood Research, Department of Pathology and Laboratory of Medicine, Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z3 (Canada), Fax: (+1) 604-822-7742
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  • We thank Dr. Johan Janzen for helpful discussions. This work was supported by the Canadian Institutes of Health Research (CIHR), the Natural Science and Engineering Council of Canada (NSERC), the Canadian Blood Services (CBS), Canada Foundation for Innovation (CFI), and the Michael Smith Foundation for Health Research (MSFHR). J.N.K. is a recipient of a CIHR/CBS new investigator award in transfusion science. A.S.P. holds a Canada Research Chair in dynamics of lattice materials and devices.

Abstract

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A redhead: Surface-grafted hydrophilic polymer brushes (see picture) with high molecular weight and graft density caused reversible bending and stretching of soft polymeric substrates on a macroscale. The shape change of the substrate was tuned to respond to different stimuli including humidity, temperature, and pH.

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