Accueil
Catégories
> Polymères ramifiés
Polymères ramifiésVoir aussi
|
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
Hyperbranched-linear polymers as promising leather additives / Wang Xuechuan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 1 (01-02/2017)
[article]
Titre : Hyperbranched-linear polymers as promising leather additives Type de document : texte imprimé Auteurs : Wang Xuechuan, Auteur ; Lu Weina, Auteur ; Li Yang, Auteur ; Wang Haijun, Auteur Année de publication : 2017 Article en page(s) : p. 6-9 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Additifs
Caractérisation
Cuirs et peaux -- Propriétés mécaniques
Groupe hydroxyle
Polyesters
Polymères -- Synthèse
Polymères ramifiésIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : A series of coconut oil-based hydroxyl-terminated hyperbranched-linear polyesters of generations 1-3 (CHBPs) were synthesized using a one-pot method and utilized in leather making. The effect of hyperbranched polymers on collagen fibres was discussed by comparing with linear products at macro level. The experimental results showed that hyperbranched polymers are less lubricating than linear compounds but have more filling abilities. Thickening rates of the leather treated by CHBPs decreased with growing generations due to their hydroxyl groups external to the molecule which will cross-link collagen fibres. In addition, CHBPs at higher generations can shrink location difference sharply. Unluckily, except for CHBP, other products didn't improve the mechanical properties of the leather remarkably. Still, hyperbranched polymers showed great potential application in the leather industry. Note de contenu : - EXPERIMENTAL SECTION : Materials - Synthesis of coconut oil-based hyperbranched polyesters (CHBPs) - Fatliquor process - Characterisation
- RESULTS AND DISCUSSION : Synthesis of CHBPs - Filing properties - Solftness properties - Mechanical propertiesEn ligne : https://drive.google.com/file/d/13rfI0LehgtbJN0f0dUMxRZGbzRGbruPM/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27935
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 101, N° 1 (01-02/2017) . - p. 6-9[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 18711 - Périodique Bibliothèque principale Documentaires Disponible Hyperbranched polyamines as potential agents for epoxy resin / Sibdas Singha Mahapatra in PAINTINDIA, Vol. LIX, N° 6 (06/2009)
[article]
Titre : Hyperbranched polyamines as potential agents for epoxy resin Type de document : texte imprimé Auteurs : Sibdas Singha Mahapatra, Auteur ; Gautam Das, Auteur ; Nirajan Karak, Auteur Année de publication : 2009 Article en page(s) : p. 55-60 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Epoxydes
Polyamines
Polymères ramifiés
Réticulation (polymérisation)Index. décimale : 667.9 Revêtements et enduits Résumé : Hyperbranched polamine has been prepared by an A2 + B3 approach using cyanuric chloride and diamine. This hyperbranched polyamine has been used to cure commercially available bisphenol-A base epoxy and a vegetable oil based epoxy resin at different dose levels (10-30 phr) with and without commercial poly(amido amine) hardener. The drying time, hardness, impact and chemical resistance of the cured epoxy resins have been investigated. The studies on morphology, thermostability and flame retardancy of cured films indicate the unifor distribution of different phases, high thermostability (up to 250°C) and seld extinguishing characteristics respectively. Results show that these hyperbranched polyamines could be used for epoxy resins as a potential agent for curing. The performance characteristics as coating materials are also improved by this active agent. All resutls obtained from this studied are be presented in this paper. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6258
in PAINTINDIA > Vol. LIX, N° 6 (06/2009) . - p. 55-60[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 011631 - Périodique Bibliothèque principale Documentaires Disponible Hyperbranched polyesters as potential additives to control the surface tension of polymers / K. Grundke in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 88, B2 (05/2005)
[article]
Titre : Hyperbranched polyesters as potential additives to control the surface tension of polymers Type de document : texte imprimé Auteurs : K. Grundke, Auteur ; P. Kierkus ; M. Kreitschamann, Auteur ; B. Voit, Auteur ; F. Simon, Auteur ; D. Pleul, Auteur ; S. Michel, Auteur ; A. Ziemer, Auteur ; M. Azizi, Auteur Année de publication : 2005 Article en page(s) : p. 101-106 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alliages polymères
Polyesters
Polymères ramifiés
Spectroscopie de photoélectrons
Tension superficielleIndex. décimale : 667.9 Revêtements et enduits Résumé : In this study, the authors report on the potential application of hyperbranched polymers as surface tension modifiers in linear polymers or compatibilisers in polymer blends. The influence of hyperbranched polyesters (HBP) with different functional end groups on the surface tension of mixtures with an oligo(ester diol) was investigated. The surface tension of the pure components and of the mixtures was studied within a temperature range of 20°C up to 100°C. The results indicate that the surface tension of the pure HBPs strongly depends on the functionality of the end-groups. The modification of the hydroxyl end groups by short alkyl chains (methyl, tert-butyl) reduced the surface tension, depending on the degree of functionalisation. The surface tension of mixtures could be considerably decreased using 1% HBP that was partially substituted with short alkyl chains. In this case, the modified HBPs acted as surface active agents. On the molecular level, the enrichment of the modified HBP in the surface region was proven by XPS (x-ray photoelectron spectroscopy) measurements. DOI : 10.1007/BF02699540 En ligne : https://link.springer.com/content/pdf/10.1007/BF02699540.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5422
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 88, B2 (05/2005) . - p. 101-106[article]Réservation
Réserver ce document
Exemplaires (2)
Code-barres Cote Support Localisation Section Disponibilité 001966 - Périodique Bibliothèque principale Documentaires Disponible 002343 - Périodique Bibliothèque principale Documentaires Disponible Hyperbranched polyesters / Mats Johansson in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8/02 (07-08/2002)
[article]
Titre : Hyperbranched polyesters : Basis for low temperature powder coatings Type de document : texte imprimé Auteurs : Mats Johansson, Auteur ; Eva Malmström, Auteur ; Anders Hult, Auteur ; Hans Claesson, Auteur Année de publication : 2002 Article en page(s) : p. 26-33 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Basses températures
Polyesters
Polymères ramifiés
Revêtements poudre:Peinture poudreIndex. décimale : 667.9 Revêtements et enduits Résumé : A dendritic polymer is used as scaffolds for solid thermoset resins i.e. powder coatings. To make it crosslinkable there is a concept of attaching crystalline segments to a dendritic polymer and subsequent functionalization. The rheological performance of these structures makes it possible to reduce the film formation temperature to 80°C thus enabling heat sensitive substrates such as wood and polymers to be coated. The effects of structural variations on the rheological and mechanical properties are shown. The main factors affecting the final properties is the length of the crystalline grafts while the core structure induces only smaller differences in properties. The obtained resins are UV-curable with little or very low levels residual unsaturation present in the cured films. Note de contenu : - Powder coatings : curing temperature of 150°C should be reduced
- Radiation curable systems need less heat
- Another way : low temperature curable hyperbranched polymers
- Hyperbranched polymers are synthetized
- Photopolymerization at 70°C
- High polarity end-groups increase viscosity
- Graft length dominates viscosity and degree of crystallinity
- Crosslinking and final film propertiesEn ligne : https://drive.google.com/file/d/1jKP_OIqA7J4lkv8kVKeJ2IGK7PTy3d9f/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10726
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 7-8/02 (07-08/2002) . - p. 26-33[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 000645 - Périodique Bibliothèque principale Documentaires Disponible Hyperbranched polyglycerol as an additive for water-based printing ink / Zuzanna Zolek-Tryznowska in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 2 (03/2015)
[article]
Titre : Hyperbranched polyglycerol as an additive for water-based printing ink Type de document : texte imprimé Auteurs : Zuzanna Zolek-Tryznowska, Auteur ; Mariusz Tryznowski, Auteur ; Justyna Królikowska, Auteur Année de publication : 2015 Article en page(s) : p. 385-395 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Couleur
Encre -- Additifs
Encre en phase aqueuse
Flexographie
Polyglycérol
Polymères -- Synthèse
Polymères ramifiésIndex. décimale : 667.9 Revêtements et enduits Résumé : In this work, the application of hyperbranched polyglycerol as a performance additive for water-based printing inks is demonstrated. The hyperbranched polyglycerol, (BPG), was synthesized through anionic ring-opening polymerization from glycidol using 1-butanol as the starting material. The branched structure of BPG is presented and described. The presence of linear, dendritic and terminal units was confirmed by Moore et al. (Prog Surf Sci 88(3):213–236, 2013) 13C NMR spectroscopy. BPG was then used as a performance additive in a water-based flexographic printing ink. The impact of a small amount of hyperbranched BPG on the printing ink color was examined by studying the optical density of a full-tone area, the total color difference, ΔE ab *, and the gloss of the dried ink film. The colorfastness to dry and wet rubbing of overprinted samples was studied. The investigated BPG is shown to be able to improve colorfastness to dry and wet rubbing of prints. Note de contenu : - EXPERIMENTAL : Materials - Characterization of BPG - Polymer synthesis - Ink preparation and printing - Characterization of prints
- RESULTS AND DISCUSSION : Polymer synthesis and characterization - Print quality - ColorfastnessDOI : 10.1007/s11998-014-9643-2 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9643-2.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23662
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 12, N° 2 (03/2015) . - p. 385-395[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 17119 - Périodique Bibliothèque principale Documentaires Disponible Hyperbranched polymer surfactant : synthesis, characterization and surface tension activity / Ren Longfang in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 3 (Année 2021)
PermalinkHyperbranched polymers - A novel class for high performance coatings / Tirthankar Jana in PAINTINDIA, Vol. LXVI, N° 3 (03/2016)
PermalinkHyperbranched polymers - A primer for their uses in the leather industry / Wang Xue-Chuan in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 90, N° 2 (03-04/2006)
PermalinkHyperbranched polymers : unique design tool for coatings / P. N. Mehta in PAINTINDIA, Vol. LV, N° 9 (09/2005)
PermalinkHyperbranched polymers : unique design tool for coatings / P. N. Mehta in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 89, B4 (12/2006)
PermalinkHyperbranched polyurethane based high-solid protective coating for marine application / R. Baloji Naik in PAINTINDIA, Vol. LXVIII, N° 12 (12/2018)
PermalinkHyperbranched polyurethanes with flammability resistance for leather retanning / Sheng Ding in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 10 (10/2022)
PermalinkInfluence of vinyl-terminated hyperbranched polyester on performance of films obtained by UV-initiated thiol–ene click reaction of A2 + B3 system / Juan Cheng in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 5 (09/2018)
PermalinkIntelligent polymeric surfaces through molecular self-assembly / Achin Goel in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 1 (03/2009)
PermalinkIrreversible network disentanglement of polymer melts and its relation to chain structure / P. Ehrecke in LES CAHIERS DE RHEOLOGIE, Vol. XV, N° 1 (10/1996)
PermalinkLeather solid waste : a review. A low cost adsorption material based on collagen fibre / Qiang Taotao in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 100, N° 3 (05-06/2016)
PermalinkLiquid reactive polymers for radiation curable high performance PSAs / James R. Erickson in ADHESIVES AGE, Vol. 38, N° 11 (11/1995)
PermalinkLow elasticity resins with novel polymer architecture / Neil Simpson in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 201, N° 4557 (02/2011)
PermalinkMaleinized hyperbranched alkyd resins : structural, thermal, rheological and film properties / Jessica Duarte in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 1 (01/2024)
PermalinkModified hyperbranched resins combine fast drying with low VOC in architectural trim paints / B. Reuvers in SURFACE COATINGS INTERNATIONAL, Vol. 92, 5 (10/2009)
PermalinkModified hyperbranched resins : the key technologyfor low VOC architectural trim paints / Petri Mast in DOUBLE LIAISON, N° 560 (12/2007)
PermalinkMorphological and antimicrobial studies of chitosan/poly(vinyl alcohol)/acyl chloride terminated hyperbranched polyester chemical crosslinked blends / Swaminathan Prabu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 5 (09/2022)
PermalinkNanosilver/hyperbranched polyester (HBPE): synthesis, characterization, and antibacterial activity / C. Kavitha in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 5 (09/2013)
PermalinkNew trends in paint formulation and processes / Ramanuj Narayan in PAINTINDIA, Vol. LXII, N° 5 (05/2012)
PermalinkPermalink