Wax‐Protected Catalyst Microspheres for Efficient Self‐Healing Materials | Zendy

Rule J. D. | Zendy; Brown E. N. | Zendy; Sottos N. R. | Zendy; White S. R. | Zendy; Moore J. S. | Zendy

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Wax‐Protected Catalyst Microspheres for Efficient Self‐Healing Materials

Author(s) -

Rule J. D.,

Brown E. N.,

Sottos N. R.,

White S. R.,

Moore J. S.

Publication year - 2005

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.200400607

Subject(s) - materials science , wax , microsphere , self healing , catalysis , aqueous suspension , chemical engineering , aqueous solution , composite material , paraffin wax , nanotechnology , organic chemistry , chemistry , medicine , alternative medicine , pathology , engineering

Microspheres of wax containing embedded Grubbs' catalyst are generated by congealing a molten aqueous suspension. Even with a ten‐fold reduction in catalyst concentration from previous systems, these microspheres produce unprecedented levels of toughness recovery in a polymeric self‐healing material (see Figure). Unlike the previously reported systems, samples healed with the wax microspheres show nonlinear fracture behavior. A protocol that addresses this nonlinearity is employed to measure healing efficiency.

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