title: Synthesis of an Open-Cage Structure POSS Containing Various Functional Groups and Their Effect on the Formation and Properties of Langmuir Monolayers.
abstract: Recently, silsesquioxanes have been recognized as a new group of film-forming materials. This study has been aimed at determining the effect of the kind of functional groups present in two different open-cage structure POSS molecules on the possibility of the formation of Langmuir monolayers and their properties. To achieve this goal, two new POSS derivatives (of open-cage structures) containing polyether and fluoroalkyl functional groups have been synthesized on the basis of a hydrosilylation process. An optimization of the process was performed, which makes it possible to obtain the above-mentioned derivatives with high yields. In the next step, the Langmuir technique was applied to measurements of the surface pressure (π) - the mean molecular area (A) isotherms during the compression of monolayers formed by molecules of the two POSS derivatives considered. Subsequently, the monolayers were transferred onto quartz plates according to the Langmuir-Blodgett technique. Both derivatives are able to form insoluble Langmuir films at the air-water interface, which can be transferred onto a solid substrate and effectively change its wetting properties.
authors.affiliation: Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, Umultowska 89 C, 61-614, Poznań, Poland.|Poznań Science and Technology Park, Adam Mickiewicz University Foundation, Rubież 46, 61-612, Poznań, Poland.
authors.forename: Michał
authors.initials: M
authors.lastname: Dutkiewicz
authors.affiliation: Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89 B, 61-614, Poznań, Poland.
authors.forename: Joanna
authors.initials: J
authors.lastname: Karasiewicz
authors.affiliation: Institute of Chemical Technology and Engineering, Poznań University of Technology, Berdychowo 4, 60-965, Poznań, Poland.
authors.forename: Monika
authors.initials: M
authors.lastname: Rojewska
authors.affiliation: Institute of Chemical Technology and Engineering, Poznań University of Technology, Berdychowo 4, 60-965, Poznań, Poland.
authors.forename: Marta
authors.initials: M
authors.lastname: Skrzypiec
authors.affiliation: Institute of Chemical Technology and Engineering, Poznań University of Technology, Berdychowo 4, 60-965, Poznań, Poland.
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Dopierała
authors.affiliation: Institute of Chemical Technology and Engineering, Poznań University of Technology, Berdychowo 4, 60-965, Poznań, Poland.
authors.forename: Krystyna
authors.initials: K
authors.lastname: Prochaska
authors.affiliation: Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89 B, 61-614, Poznań, Poland. maciej@amu.edu.pl.|Poznań Science and Technology Park, Adam Mickiewicz University Foundation, Rubież 46, 61-612, Poznań, Poland. maciej@amu.edu.pl.
authors.forename: Hieronim
authors.identifier: http://orcid.org/0000-0003-2771-3089
authors.initials: H
authors.lastname: Maciejewski
keywords: Langmuir-Blodgett films; POSS; hydrosilylation; silsesquioxanes; surface chemistry