Full Color Camouflage in a Printable Photonic Blue-Colored Polymer | Zendy

Monali Moirangthem | Zendy; Albertus P. H. J. Schenning | Zendy

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Full Color Camouflage in a Printable Photonic Blue-Colored Polymer

Author(s) -

Monali Moirangthem,

Albertus P. H. J. Schenning

Publication year - 2018

Publication title -

acs applied materials and interfaces

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.535

H-Index - 228

eISSN - 1944-8252

pISSN - 1944-8244

DOI - 10.1021/acsami.7b17892

Subject(s) - materials science , camouflage , polymer , colored , structural coloration , blue light , coating , visible spectrum , polarizer , photonics , optoelectronics , photonic crystal , nanotechnology , optics , composite material , computer science , physics , birefringence , artificial intelligence

A blue reflective photonic polymer coating which can be patterned in full color, from blue to red, by printing with an aqueous calcium nitrate solution has been fabricated. Color change in the cholesteric liquid-crystalline polymer network over the entire visible spectrum is obtained by the use of nonreactive mesogen. The pattern in the coating is hidden in the blue color dry state and appears upon exposure to water or by exhaling breath onto it due to different degrees of swelling of the polymer network. The degree of swelling depends on the printed amount of calcium which acts as a cross-linker. The printed full color pattern can also be hidden simply by using a circular polarizer. The responsive full color camouflage polymers are interesting for various applications ranging from responsive house and automobile decors to anticounterfeit labels and data encryption.

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