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Molecular Crystals and Liquid Crystals Volume 649, 2017 - Issue 1: Proceedings of the 12th National Conference of SICL in Conjunction with the 3rd Italian Brazilian Workshop on Liquid Crystals
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Original Articles

Trans-cis photoisomerization in nanostructured floating layers and x-ray diffraction study of Langmuir-Schaefer films of nonyloxypheylazocinnamic acid

M. PisaniDepartment of Materials, Environmental Sciences and Urban Planning, SIMAU, Università Politecnica delle MarcheAncona, ItalyCorrespondence[email protected] [email protected]
,
L. A. MaiorovaResearch Institute of Macroheterocyclic Compounds, Ivanovo State University of Chemistry and Technology, Ivanovo, RussiaCorrespondence[email protected] [email protected]
,
O. FrancescangeliDepartment of Materials, Environmental Sciences and Urban Planning, SIMAU, Università Politecnica delle MarcheAncona, Italy
,
Dm. S. FokinKhimprominzhiniring Research and Production Company, Moscow, Russia
,
K. S. NikitinResearch Institute of Macroheterocyclic Compounds, Ivanovo State University of Chemistry and Technology, Ivanovo, Russia
,
V. A. BurmistrovResearch Institute of Macroheterocyclic Compounds, Ivanovo State University of Chemistry and Technology, Ivanovo, Russia
,
S. A. KuvshinovaResearch Institute of Macroheterocyclic Compounds, Ivanovo State University of Chemistry and Technology, Ivanovo, Russia
,
P. MengucciDepartment of Materials, Environmental Sciences and Urban Planning, SIMAU, Università Politecnica delle MarcheAncona, Italy
&
O. I. KoifmanResearch Institute of Macroheterocyclic Compounds, Ivanovo State University of Chemistry and Technology, Ivanovo, Russia;Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo, Russia
 show all
Pages 2-10 | Published online: 01 Sep 2017
 
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ABSTRACT

Azo-functionalised materials are of special interest due to their photochromic nature, i.e. reversible trans–cis isomerisation upon photoirradiation. The structure and properties of Langmuir monolayers of nonyloxyphenylazocinnamic acid (NOPACA) with and without exposure to UV-irradiation were studied. The NOPACA floating layer structure was determined by using a quantitative method of compression isotherm analysis. The results showed that the structure of two dimensional face-on M-nanoaggregates, the stable structural elements of floating monolayers, changes when exposed to UV-irradiation. Langmuir-Schaefer films of NOPACA were prepared by deposition of floating layers and studied using X-ray diffraction technique.

Funding

The work is partially supported by the RSF (Project 14-23-00204) and Ministry of Education and Science оf RF (State task for ISUCT).

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