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Courbevoie, France

Dutriez C.,Aelorve SAS | Satoh K.,Nagoya University | Kamigaito M.,Nagoya University | Yokoyama H.,University of Tokyo
Polymer Journal | Year: 2016

We previously reported the successful introduction of closed cells with a size of tens of nanometers (nanocells) using the block copolymer template assisted with supercritical carbon dioxide (BCTSC) method. We applied BCTSC to poly(methyl methacrylate-r-glycidylmethacrylate)-b-poly(perfluorooctylethyl methacrylate) (PMGMA-PFMA) to introduce nanocells. The nanocellular thin film based on P(MMA-co-GMA)-PFMA showed a very low refractive index and, hence, low reflection as an antireflective (AR) coating as well as good chemical robustness by chemical cross-linkage between the glycidyl groups. In addition, the film surface provides water- and oil-repellent properties due to hydrophobic and oleophobic fluorine-containing PFMA. This novel material using the CO 2 process might be exploited as a high-performance coating for AR purposes. © 2016 The Society of Polymer Science, Japan (SPSJ) All rights reserved. Source


Gorvel L.,Aix - Marseille University | Gorvel L.,French Institute of Health and Medical Research | Gorvel L.,French National Center for Scientific Research | Yver M.,University of Lyon | And 10 more authors.
Clean - Soil, Air, Water | Year: 2014

Air quality on aircraft cabins has become a major public health issue due to the increasing number of air travels since few decades. Exposure to volatile organic compounds (VOC) and micro-organisms is a major concern for human and animal welfare in indoor confinements and especially in aircraft cabins. Here we present an innovative air purification system based on the association of UV-C and photocatalysis. The SAVAB project is aiming at a higher decontamination degree of aircraft cabin air, thus improving health and comfort standards of aircraft crew and passengers. We show a degradation of irritating/noxious VOC such as formaldehyde, toluene, benzene, acetone, which are major pollutants of the aircraft cabins according the NF EN 4618 standard. In the same study, we also demonstrate the inactivation of pathogenic Influenza virus, adenovirus and pathogenic bacteria such as Legionella pneumophila, Burkholderia cepacia, Streptococcus pneumoniae, and Pseudomonas aeruginosa. This innovative system demonstrates its ability to improve air quality in indoor confinements of travel-motorized units such as aircraft cabins and could be applied in hospital environments. Air quality on aircraft cabins has become a major public health issue. Here, a reduction of irritating/noxious volatile organic compounds and the inactivation of pathogens could be shown. The innovative system developed in the SAVAB project demonstrates its ability to improve air quality in indoor confinements of travel-motorized units and could also be applied in hospital environments. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

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