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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Advances in the science and technology of paints, inks and related coatings : 2006 / I. Holme in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 89, B4 (12/2006)  

[article]  inSURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 89, B4 (12/2006) . - p. 343-363 Titre : Advances in the science and technology of paints, inks and related coatings : 2006 Type de document : texte imprimé Auteurs : I. Holme, Auteur Année de publication : 2006 Article en page(s) : p. 343-363 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Abrasion Adhésion Anticorrosifs Anticorrosion Couches minces Démoulage Désencrage Disperseurs Encre Huiles et graisses Imagerie (technique) Imagerie numérique Latex Matériaux hybrides Matériaux intelligents Matériel optique Nanoparticules Particules (matières) -- Analyse Photographie Pigments azoïques Polyalkydes Polymères ramifiés Polymérisation par transfert de chaîne réversible par addition fragmentation La polymérisation radicalaire contrôlée par transfert de chaîne réversible par addition-fragmentation (en anglais Reversible Addition-Fragmentation Chain Transfer (RAFT)) est une technique de polymérisation radicalaire contrôlée. Au même titre que la polymérisation radicalaire contrôlée par transfert d'atome (en anglais Atom Transfert Radical Polymerization (ATRP)) et la polymérisation radicalaire en présence de nitroxydes (en anglais Nitroxide Mediated Polymerization (NMP)), la polymérisation de type RAFT permet de synthétiser des polymères d'architecture contrôlée (polymères à blocs, étoiles, peignes, etc) de faible polydispersité et de haute fonctionnalité. Les applications de ces polymères sont, parmi d'autres, l'encapsulation de principes actifs de médicaments, la production de revêtements et peintures de nouvelles génération, la microfluidique, les tensioactifs, les adhésifs et les membranes. Poudres Rayures Réaction de couplage Résistance à l'abrasion Résistance à l'usure Résistance aux conditions climatiques Revêtements organiques Revêtements protecteurs Revêtements:Peinture Surfaces -- Analyse Technique des plasmas Thermodurcissables Index. décimale : 667.9 Revêtements et enduits Résumé : This review summarises the many developments reported in Surface Coatings International Part B: Coatings Transactions, 89, 2006. Thus the advances in polymer synthesis and characterisation and synthetic latexes for use in coatings are reviewed. Developments in RAFT agents, hyperbranched polymers, and coupling agents for adhesion are discussed. Novel hybrid, smart, anticorrosive, optical thin-film and powder coatings are surveyed, and developments in the oxidative and UV curing of paints and coatings described. Adaptive speckle imaging interferometry, a new technique for characterising the curing of coatings, and an ultrathin film high-shear disperser used to produce nanoparticles are discussed. Studies on plasma treatments, weatherability, and scratch and mar resistance of coatings are reviewed. Developments in printing inks, printability and deinking technology are surveyed. The colour and constitution relationships in azonaphtharylamide pigments are discussed. The latest developments in digital image capture and film-less camera technology and techniques are summarised. Note de contenu : - Polymer blend formulation - Smart coatings - Optical thin films - Nanostructured and hollow polyurethand dispersions - Polyurethane coatings - Polymer architecture - Hyperbranched polymers - Heat-resistant coatings - RAFT agents for controlled polymerisation - Synthetic latexes - Care refinish applications - Scratch resistance of UV-cured acrylic clear coats - Cross-linking density in polyurea coating - UV-initiated photopolymerisation - Powder coating - Hybrid polymer coatings - Mould release agents - Anticorrosive coatings for steel - Curing of fatty acids - Mass/volume changes in the drying of linseed oil - Catalysts for alkyd resins - New technology for analysis of the drying of coatings - Oil-a and water-repellency - Adhesion of polymer-metal laminates - Coupling agents to improve adhesion of paint to wood - Moisture diffusion through wood-aluminium windows - Numerical simulaton of nanoparticle formation in an ultrathin film high shear disperser - Surface analysis of particles - Pigment solubility in a polycarbonate-polybutylene terephthalate blend - Azonaphtharylamide pigments - Service life prediction of colour retention in PVDF architectural coatings - Weatherability prediction using a remote plasma reactor - Printability of polypropylene film treated by an air dielectric barrier discharge plasma - The effect of process ink film thickness of the colour gamut of overprint colours - Deinking of indigo prints - Digital image capture technology DOI : 10.1007/BF02765587 En ligne : https://link.springer.com/content/pdf/10.1007/BF02765587.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5276 [article]

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An A2 + CB2 approach to the synthesis of hyperbranched polyester polyol and application in PU coatings / Amardip M. Patil in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 3 (05/2024)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 3 (05/2024) . - p. 1085-1095 Titre : An A2 + CB2 approach to the synthesis of hyperbranched polyester polyol and application in PU coatings Type de document : texte imprimé Auteurs : Amardip M. Patil, Auteur ; Dhammanand J. Shirale, Auteur ; Harishchandra D. Jirimali, Auteur ; Ramanand N. Jagtap, Auteur Année de publication : 2024 Article en page(s) : p. 1085-1095 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Analyse morphologique Caractérisation Enrobage (technologie) Polymères -- Synthèse Polymères ramifiés Polyuréthanes Résistance chimique Revêtements -- Analyse Revêtements organiques Stabilité thermique Surfaces -- Analyse Index. décimale : 667.9 Revêtements et enduits Résumé : In the present work, neopentyl glycol was used as a core for the synthesis of hyperbranched polymer by melt condensation polymerization with 2,2-Bis(hydroxymethyl) propionic acid. The A2 + CB2 synthetic method was used where neopentyl glycol was A2 and 2,2-Bis(hydroxymethyl) propionic acid was CB2. The acid value and hydroxyl values of the synthesized hyperbranched polymer were determined according to ASTM D974 and ASTM D4274, respectively. The molecular structural characterizations of hyperbranched polyol were determined by FTIR and NMR spectroscopy techniques. The hyperbranched polyurethanes were synthesized by using hyperbranched polyol and crosslinking agent isophorone diisocyanate in different mole ratios of OH:NCO (1:1.2, 1:1.4, 1:1.6). These mixtures were used as coating materials on mild steel panels and glass plates. The coating properties of polyurethanes such as gloss and cross-cut adhesion were studied. The immersion test of coatings was carried out in HCl, NaCl, NaOH and water. The electrochemical properties of the coatings were examined using an electrochemical method in electrolytes consisting of HCl, NaOH, and NaCl. Thermal stability and surface morphology were studied by TGA and SEM, respectively. Note de contenu : - EXPERIMENTAL SECTION : Materials - Synthesis of hyperbranched polyester polyol (HBP) from neopentyl glycol (NG) - Preparation of hyperbranched polyurethane (HBPU) - Characterizations - Functional group analysis - Structural study - Coating properties - Chemical resistance - Electrochemical study - Thermogravimetric study - Study of scanning electron microscopy images - RESULTS AND DISCUSSION : Study of FTIR and NMR spectra - Coating properties - Chemical resistance - Electrochemical study of the HBPU coatings - Thermogravimetric analysis of HBPU - Study of scanning electron microscopy images DOI : https://doi.org/10.1007/s11998-023-00875-3 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-023-00875-3.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41078 [article]

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Anisotropie d'un polymère cristal liquide en peigne déformé / V. Fourmaux-Demange in LES CAHIERS DE RHEOLOGIE, Vol. XV, N° 1 (10/1996)

[article]  inLES CAHIERS DE RHEOLOGIE > Vol. XV, N° 1 (10/1996) . - p. 124-129 Titre : Anisotropie d'un polymère cristal liquide en peigne déformé Type de document : texte imprimé Auteurs : V. Fourmaux-Demange, Auteur ; F. Boué, Auteur ; A. Brûlet, Auteur ; J.-P. Cotton, Auteur ; P. Keller, Auteur Année de publication : 1996 Article en page(s) : p. 124-129 Note générale : Bibliogr. Langues : Français (fre) Catégories : Anisotropie Diffusion aux petits angles polymères cristaux liquides Polymères ramifiés Rhéologie Viscoélasticité Index. décimale : 532.05 Mécanique des fluides et des liquides - Dynamique (cinétique et cinématique) Résumé : Un polymère cristal-liquide en peigne est étudié par des mesures viscoélastiques et par Diffusion de Neutrons aux Petits Angles (DNPA). L'hypothèse de l'existence, dans le fondu, d'un réseau transitoire au seuil de percolation est discutée. Note de contenu : - Rhéologie - Diffusion de Neutrons aux Petits Angles Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25973 [article]

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Colloidal, morphological, thermal, rheological, and film properties of waterborne hyberbranched alkyd-acrylic resins / Edwin A. Murillo in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 5 (09/2019)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 5 (09/2019) . - p. 1223-1232 Titre : Colloidal, morphological, thermal, rheological, and film properties of waterborne hyberbranched alkyd-acrylic resins Type de document : texte imprimé Auteurs : Edwin A. Murillo, Auteur ; Judith Percino, Auteur ; Betty L. Lopez, Auteur Année de publication : 2019 Article en page(s) : p. 1223-1232 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Angle de contact Caractérisation Colloides -- Stabilité Copolymère alkyde acrylique Polymères -- Analyse Polymères en émulsion Polymères ramifiés Potentiel zeta Rhéologie Stabilité thermique Index. décimale : 667.9 Revêtements et enduits Résumé : Waterborne hyperbranched alkyd–acrylic resins (HAAR) are interesting materials that provide excellent properties yet require only low levels of solvent in formulations using them. However, they have been scarcely studied. Therefore, the goal of this work was to prepare and evaluate various properties of HAAR. These materials were obtained by miniemulsion polymerization from a hyperbranched alkyd resin (HAR), methyl methacrylate (MMA), butyl acrylate (BA), and acrylic acid (AA). The proportions of HAR:acrylic monomers were as follow: 50:50 (HAAR1), 40:60 (HAAR2), 30:70 (HAAR3), and 20:80 (HAAR4). The particle size increased with the content of HAR, but the colloidal stability, critical deformation, zeta potential, thermal stability, and hardness followed an opposite behavior. The order of colloidal stability of the HAAR miniemulsions was HAAR4 > HAAR3 > HAAR2 > HAAR1. The particle morphology of the HAAR was mainly core–shell, but acrylic and alkyd particles were also observed. In addition, all HAAR initially exhibited a reduction in complex viscosity (η*) with the increase in angular frequency. The thermal stability of the HAR was lower than that of the HAAR. The HAAR showed better resistance against a 0.10 M sodium hydroxide (NaOH) solution than HAR. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of the HAAR - Characterization - RESULTS AND DISCUSSION : IR analysis - DLS analysis - Zeta potential - Contact angle analysis - TEM analysis - TGA - Rheological analysis - Film properties DOI : 10.1007/s11998-019-00205-6 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-019-00205-6.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33006 [article]

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Comment diminuer la viscosité de suspensions concentrées de particules de ciment ? / J. Hot in RHEOLOGIE, Vol. 24 (12/2013)  

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Compounding fibre grade polyethylene terephthalate with a hyperbranched additive and studying its dyeability with a disperse dye / Marziyeh Khatibzadeh in COLORATION TECHNOLOGY, Vol. 126, N° 5 (2011)  

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Cyclodextrin-based hyperbranched polyester: synthesis, characterization, and antimicrobial activity / Swaminathan Prabu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 5 (09/2018)  

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Dendritic polymers : design tools for property control in coatings / Jijeesh Ravi Nair in PAINTINDIA, Vol. LVIII, N° 3 (03/2008)  

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Designed for selective adsorption / Astrid Rudolfi in EUROPEAN COATINGS JOURNAL (ECJ), N° 11 (11/2013)  

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Development of bio-based polyester-urethane-acrylate (PUA) from citric acid for UV-curable coatings / Debarati Maity in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 3 (05/2023)  

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Development of hyperbranched polyester polyol-based waterborne anticorrosive coating / Ashish Pratap Singh in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 1 (01/2016)  

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Development of hyperbranched polyurethane coatings : effect of chain extender and NCO/OH ratio / Aswini K. Mishra in PAINTINDIA, Vol. LXI, N° 11 (11/2011)

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Development of moisture cure polyurethane–urea coatings using 1,2,3-triazole core hyperbranched polyesters / Sasidhar Kantheti in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 5 (09/2013)  

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Durable and washable conductive textiles / Casey Yan in CHEMICAL FIBERS INTERNATIONAL, Vol. 65, N° 5 (12/2015)  

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Effect of hydrophilic chain extenders on properties of hyperbranched waterborne polyurethane / Wang Xuechuan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 2 (03-04/2016)  

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Effect of introducing long chain branching on fiber diameter and fiber diameter distribution in melt blowing process of polypropylene / K. Iiba in INTERNATIONAL POLYMER PROCESSING, Vol. 36, N° 4 (2021)  

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Effects of the side chain density of polycarboxylate dispersants on dye dispersion properties / Hamid Gharanjig in COLORATION TECHNOLOGY, Vol. 135, N° 2 (04/2019)  

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Electrophoretic deposition of waterborne ultraviolet (UV)-curable coatings based on microgels / Junhua Chen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 5 (09/2019)  

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Enhanced film blowing of polylactide by incorporating branched chains and stereocomplex crystals / S. Nouri in INTERNATIONAL POLYMER PROCESSING, Vol. XXX, N° 4 (08/2015)  

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