3D laser scanning confocal microscopy of siloxane-based comb and double-comb polymers in PVDF-HFP thin films / Eva Cznotka in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 4 (07/2016)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 4 (07/2016) . - p. 577-587 Titre : 3D laser scanning confocal microscopy of siloxane-based comb and double-comb polymers in PVDF-HFP thin films Type de document : texte imprimé Auteurs : Eva Cznotka, Auteur ; Steffen Jeschke, Auteur ; Sebastian Schmohl, Auteur ; Patrik Johansson, Auteur ; Hans-Dieter Wiemhöfer, Auteur Année de publication : 2016 Article en page(s) : p. 577-587 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Couches minces Hexafluoropropylène Microscopie confocale à balayage laser Polyélectrolytes Polyfluorure de vinylidène Polymères ramifiés Index. décimale : 667.9 Revêtements et enduits Résumé : Currently, atomic force microscopy is the preferred technique to determine roughness on membrane surfaces. In this paper, a new method to measure surface roughness is presented using a 3D laser scanning confocal microscope for high-resolution topographic analysis and is compared to conventional SEM. For this study, the surfaces of eight samples based on a poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) host polymer with different liquid interpenetrating components were analyzed. Polymethylhydrosiloxane, triethylene glycolallylmethylether, (3,3,3-trifluoropropyl)methylcyclotrisiloxane (D3-C2H4CF3), polysiloxane-comb-propyloxymethoxytriglycol (PSx), polysiloxane-comb-propyl-3,3,3-trifluoro (PSx-C2H4CF3), poly[bis(2-(2-methoxyethoxy) ethoxy) phosphazene, or poly[bis(trifluoro)ethoxy] phosphazene was chosen as interpenetrating compound to investigate the impact of comb and double-comb-structured polymer backbones, as well as their dipolar or fluorous residues on the PVDF-HFP-miscibility. Different phases of the constituting ingredients were identified via their thermal properties determined by DSC. Additionally, the COSMO-RS method supported the experimental results, and with regard to computed σ-profiles, new modified structures for polysiloxane and polyphosphazene synthesis were suggested. Note de contenu : - EXPERIMENTAL : Materials - Polymer synthesis - Membrane preparation - Characterization methods - Computational details - RESULTS AND DISCUSSION : 3D laser scanning confocal microscopy - Scanning electron microscopy - DSC - COSMO-RS profiles and potentials DOI : 10.1007/s11998-015-9754-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9754-4.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26739 [article]

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