Читать книгу Self-Healing Smart Materials - Группа авторов - Страница 32

There are different methods to promote the self-healing process induced by light. The first one consists of using a photo crosslinking reaction between molecular parts that are photo reactive. Another method uses rebuild that links up polymer chains on both side of the cracks. Covalent bonds like disulfides, allyl sulfides or trithiocarbonates are susceptible to this stimulus. The mechanism consists of breaking these covalent bonds and make reactive radicals which are combined to form new bonds.