Intrinsic self-healing polymers

In current reports of mechanochemically latent ruthenium alkylidenes, metathesis activity is known only in solution, in which access to mechanical force is achieved through solvodynamic shear stresses during ultrasonication [115, 116]. These catalysts are touted as being apphcable to self-healing polymers, but several refinements toward self-healing applications are necessary. First, mechanochemically induced ligand dissociation must be demonstrated through macroscopic stresses on a bulk polymer. Second, once catalyst initiation 

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Zhong, N., Post, W., 2015. Seh-repah of stmctural and functional composites with intrinsically self-healing polymer matrices a review. Compos. Part A Appl. Sci. Manuf. 69,226-239. 

Self-Healing by a Combination of Shape Memory and Intrinsic Self-Healing Polymers... 

Self-healing or restoration of lost functionalities without external help is a dream come true with self-healing polymers (Ai ssa et a/., 2012). Healing mechanisms can be extrinsic (the healing compound is isolated from the polymer matrix in capsules, fibers or nanocarriers) or intrinsic (the polymer chains temporarily increase mobility and flow to the damaged area) (Billiet et al, 2013) and are responsible for restoration of properties such as structural integrity (White et fll, 2001), surface aesthetics (Yao et a/., 2011), electrical conductivity (Tee et fl/., 2012), hydrophobicity and hydrophilicity (Ionov and Synytska, 2012), mechanical properties (Jones et al, 2013), etc. 

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