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Actuation in Crosslinked Polymers via Photoinduced Stress Relaxation
Author(s) -
Scott T. F.,
Draughon R. B.,
Bowman C. N.
Publication year - 2006
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.200600379
Subject(s) - materials science , polymer , stress relaxation , relaxation (psychology) , stress (linguistics) , photochemistry , sensitivity (control systems) , polymer chemistry , composite material , chemistry , psychology , social psychology , linguistics , creep , philosophy , electronic engineering , engineering
Photoinduced polymer actuation by relieving stress unevenly through the thickness of a chemically crosslinked, rubbery polymer upon light exposure is demonstrated (see figure). The sensitivity of this method to light is greater than previously developed photoinduced actuation techniques, as the recurring chain‐transfer reactions amplify the effects of each absorbed photon and subsequently generated radical on the stress‐relief and actuation processes.