Healing based on photoinduced homolytic dissociations of covalent bonds

Healing based on photoinduced homolytic dissociations of covalent bonds 

Besides reversible cycloadditions, several other chemistries have been explored for the design of pol5mer covalent networks with self-healing 

In all the contributions mentioned in this section and as for self-healing polymers based on reversible cycloadditions, photodissociated cross-links or junctions can efficiently reform. However, and for both types of self-healing polymers, potential limitations to a subsequent healing could occur 

Compared to the strategies based on cycloadditions, the schemes presented in this section exploiting radical chemistry have the advantage that only irradiation in one wavelength range is necessary to initiate the healing process. But these methods also have their own limitations. The first limitation is the possible occurrence of side reactions, for instance due to 

The strategies presented so far in this chapter rely on a common concept polymers with a network structure based on reversible covalent bonds. Healing is permitted by a temporary transition from a thermoset state to a thermoplastic behavior with enough chains mobility at ambient temperature. Considering this, alternative routes based on the same concept could be 

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