Chemically and geometrically programmable photoreactive polymers for transformational humidity-sensitive full-color devices.

ABSTRACT: Humidity-sensitive structural color has emerged as a promising technology due to its numerous advantages that include fast response, intuitiveness, stand-alone capability, non-toxicity, as well as resistance to thermal and chemical stresses. Despite immense technological advancements, these structural colors lack the ability to present independent multiple images through transformation. Herein, we present an approach to address this constraint by introducing a chemically and geometrically programmable photoreactive polymer which allows preparation of transformational humidity-sensitive full-color devices. Utilizing azido-grafted carboxymethyl cellulose (CMC-N₃) allows adjustments in swelling properties based on the grafting ratio (Γ) of azido groups upon UV-induced crosslinking.

SUBMITTER: Yoon J 

PROVIDER: S-EPMC11292010 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature