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Rapid Self‐healing Film From Novel Photo Polymerization Additive.
Author(s) -
Oh Jeong Seop,
Choi Kyoung Hwan,
Suh Dong Hack
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201803616
Subject(s) - self healing , self healing material , polymerization , materials science , photopolymer , polymer , composite material , medicine , alternative medicine , pathology
Self‐healing materials have ability to repair damage by themselves. Their properties have been developed to increase the reliability of materials. Generally, self‐healing polymers have been developed by thermal polymerization. Especially, hydrogel materials showed relatively rapid recovery and goodhealing efficiency. However, it is very difficult to restore their properties without the self‐healing mediator such as water. Herein, we report the novel type of self‐healing polymer using photo‐polymerization. This is achieved through an unprecedented concept of an additive of photopolymerization, named as ‘healer’ which can act as a physical crosslinker between main chains and a self‐healing mediator in hydrogel materials. This transparent, easily fabricated self‐healing polymer healed scratch in 40 seconds as well as restored the mechanical properties to 82%.