Reversible Photochemical Strain in Langmuir Monolayers
- 3 March 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 44 (9) , 590-592
- https://doi.org/10.1103/physrevlett.44.590
Abstract
This paper reports investigation of the photoinduced mechanical response of a mono-layer consisting of the copolymer poly(methyl methacrylate)-spiropyran (molecular weight 215 000, 5.1 mole% spiropyran) at an air-water interface. Irradiation with uv-light pulses isomerizes the spiropyran chromophore and leads to a relative surface-pressure increase up to 10% at saturation. The photoexcited state has a typical decay time constant of 20 min. Irradiation with visible light returns the chromophore to the initial state making the mechanical process fully reversible.Keywords
This publication has 10 references indexed in Scilit:
- Investigation of photoresponsive effects in polymer monolayersPolymer, 1979
- Reversible viscosity change of photochromic spirobenzopyran copolymer solutionsJournal of Polymer Science Part C: Polymer Letters, 1979
- MechanophotochemistryMacromolecules, 1978
- Photochromic behavior of copolymers of indolinospirobenzopyrane methacrylic derivativesJournal of Polymer Science: Polymer Chemistry Edition, 1974
- PHOTOREGULATION OF POLYMER CONFORMATION BY PHOTOCHROMIC MOIETIES–I. ANIONIC LIGAND TO AN ANIONIC POLYMER*Photochemistry and Photobiology, 1974
- Chemical reactions in solid polymeric systems. Photomechanical phenomenaPublished by Walter de Gruyter GmbH ,1974
- Surface activity of some merocyanines and spiropyrans at liquid-liquid interfacesJournal of Colloid and Interface Science, 1970
- Steric Factors Influencing the Dyeing of Hydrophobic FibersTextile Research Journal, 1969
- Comportement des polyméthacrylates de méthyle atactique et isotactique à l’interface eau-airJournal de Chimie Physique et de Physico-Chimie Biologique, 1967
- Mechanochemical EnginesNature, 1966