References of "Detrembleur, Christophe"
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See detailRadiation-curing binders and a process for their preparation
Weikard, Jan; Greszta-Franz, Dorota; Fischer, Wolfgang et al

Patent (2006)

The invention relates to a process for preparing binders which contain 1) allophanate groups, 2) groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic ... [more ▼]

The invention relates to a process for preparing binders which contain 1) allophanate groups, 2) groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups) and 3) optionally NCO-reactive groups, by reacting at temperatures <=130 DEG C. A) one or more NCO-functional compounds containing uretdione groups with B) one or more compounds that contain isocyanate-reactive groups and groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups), and then C) with one or more saturated, hydroxyl-containing compounds other than B), at least one of these compounds having an OH functionality of >=2, in the presence of D) a catalyst containing one or more zinc compounds, the reaction with compounds C) taking place at least proportionally with the formation of allophanate groups. The present invention also relates to the binders obtained by the process of the invention. [less ▲]

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See detailLow viscosity allophanates containing actinically curable groups
Weikard, Jan; Detrembleur, Christophe ULg; Grestza-Franz, Dorota et al

Patent (2006)

The present invention relates to a process for preparing radiation-curing binders containing allophanate groups by reacting at temperatures of <=130 DEG C. A) one or more compounds containing uretdione ... [more ▼]

The present invention relates to a process for preparing radiation-curing binders containing allophanate groups by reacting at temperatures of <=130 DEG C. A) one or more compounds containing uretdione groups with B) one or more OH-functional compounds which contain groups which react, with polymerization, with ethylenically unsaturated compounds on exposure to actinic radiation (radiation-curing groups), C) optionally NCO-reactive compounds other than B), in the presence of D) a catalyst containing at least one zinc compound, to form allophanate groups by opening the uretdione ring. The present invention also relates to the binders obtained by the process of the invention and to coating compositions containing these binders. [less ▲]

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See detailNew antibacterial cationic surfactants prepared by Atom Transfer Radical Polymerization
Lenoir, Sandrine ULg; Pagnoulle, Christophe; Detrembleur, Christophe ULg et al

in Journal of Polymer Science. Part A, Polymer Chemistry (2006), 44(3), 1214-1224

Efficient antibacterial surfactants have been prepared by the quaternization of the amino groups of poly(ethylene-co-butylene)-b-poly[2-(dimethylamino)ethylmethacrylate] (PEB-b-PDMAEMA) diblock copolymers ... [more ▼]

Efficient antibacterial surfactants have been prepared by the quaternization of the amino groups of poly(ethylene-co-butylene)-b-poly[2-(dimethylamino)ethylmethacrylate] (PEB-b-PDMAEMA) diblock copolymers by octyl bromide. The diblock copolymers have been synthesized by ATRP of 2-(dimethylamino)ethylmethacrylate (DMAEMA) initiated by an activated bromide-end-capped poly(ethylene-co-butylene). In the presence of CuBr, 1,4,7,10,10-hexamethyl-triethylenetetramine (HMTETA), and toluene at 50 °C, the initiation is slow in comparison with propagation. This situation has been improved by the substitution of CuCl for CuBr, all the other conditions being the same. Finally, the addition of an excess of CuCl2 (deactivator) to the CuCl/HMTETA catalyst is very beneficial in making the agreement between the theoretical and experimental number-average molecular weights excellent. The antibacterial activity of PEB-b-PDMAEMA quaternized by octyl bromide has been assessed against bacteria and is comparable to the activity of a commonly used disinfectant, that is, benzalkonium chloride. [less ▲]

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See detailCobalt-mediated radical polymerization of vinyl acetate in miniemulsion: Very fast formation of stable poly(vinyl acetate) latexes at low temperature
Detrembleur, Christophe ULg; Debuigne, Antoine ULg; Bryaskova, Rayna ULg et al

in Macromolecular Rapid Communications (2006), 27(1), 37-41

Poly(vinyl acetate) macroinitiators end-capped by a Co(acac)(2) complex (PVAc-Co(acac)(2)), prepared in bulk by cobalt-mediated radical polymerization (CMRP), are used for the controlled radical ... [more ▼]

Poly(vinyl acetate) macroinitiators end-capped by a Co(acac)(2) complex (PVAc-Co(acac)(2)), prepared in bulk by cobalt-mediated radical polymerization (CMRP), are used for the controlled radical polymerization of vinyl acetate in miniemulsion to give high-molecular-weight polymers and high monomer conversion. Stable poly(vinyl acetate) latexes with solid contents ranging from 25 to 30 wt.-% are prepared within unusually short reaction times (similar to 1 h) at low temperatures (0-30 degrees C). [less ▲]

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See detailMolecular weight determination by visualization of stretched polycation molecules
Bocharova, Vera; Kiriy, Anton; Stamm, Manfred et al

in PMSE Preprints (2006), 95

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See detailPolymer-modified multi-walled carbon nanotubes for ultrathin transparent conductive coatings
Bocharova, Vera; Kiriy, Anton; Ulrich, Oertel et al

in PMSE Preprints (2006), 95

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See detailSynthesis and deposition of water-dispersed prussian blue nanocrystals on polymers and CNTs
Boccharova, Vera; Gorodyska, Ganna; Kiriy, Anton et al

in Progress in Colloid & Polymer Science (2006), 132

Nanoparticles can be used for decoration and functionalization of single polymer molecules that have been adsorbed to a solid substrate. Initial attempts to prepare Prussian Blue nanoclusters by a layer ... [more ▼]

Nanoparticles can be used for decoration and functionalization of single polymer molecules that have been adsorbed to a solid substrate. Initial attempts to prepare Prussian Blue nanoclusters by a layer-by-layer deposition technique of hexacyanoferrate anions and ferric cations onto isolated polycation chains in water failed because of the desorption of the first layer upon deposition of the next one. A simple method for the preparation of charge-stabilized Prussian Blue nanoparticles of readily adjustable size is reported. Prussian Blue nanoparticles have been purified by addition of non-solvents and redispersed in water without aggregation. Thus formed Prussian Blue nanoparticles are crystalline and display a long-range ferromagnetic ordering at 5.1 K. Prussian Blue nanoparticles were selectively deposited along single polycation molecules to form a one-dimensional array or were attached to the surface of carbon nanotubes (CNTs) functionalized with poly2-vinylpyridine (P2VP). These nanoparticle-based nanostructures might be useful materials for manufacture of electrooptical devices, or mechanically robust ion-sieving membranes. [less ▲]

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See detailAbility of nitrones of various structures to control the radical polymerization of styrene mediated by in situ formed nitroxides
Sciannamea, Valérie; Guerrero-Sanchez, Carlos; Schubert, Ulrich S. et al

in Polymer (2005), 46(23), 9632-9641

The ability of several nitrones to control the radical polymerization of styrene at 110 °C has been investigated by high-throughput experimentation. The nitrone/free radical initiator pair dictates the ... [more ▼]

The ability of several nitrones to control the radical polymerization of styrene at 110 °C has been investigated by high-throughput experimentation. The nitrone/free radical initiator pair dictates the structure of the nitroxide and the alkoxyamine formed in situ, which determines the position of the equilibrium between the active and the dormant species operating in the nitroxide-mediated polymerization. For the styrene polymerization to be controlled, the nitrone must be reacted with 2,2'-azo-bis-isobutyronitrile (AIBN) at 85 °C, prior to addition of styrene and polymerization at 110 °C. The effect of the nitrone structure on the kinetics of the styrene polymerization has been emphasized. Amongst all the nitrones tested, those of the C-phenyl-N-tert-butylnitrone (PBN) type are the most efficient in terms of polymerization rate, control of molecular weight and polydispersity. Electrophilic substitution of the phenyl group of PBN by either an electrodonor or an electroacceptor group has only a minor effect on the polymerization kinetics. Importantly, the polymerization rate is not governed by the thermal polymerization of styrene but by the alkoxyamine formed in situ during the pre-reaction step. The initiation efficiency is, however, very low, consistent with a limited conversion of the nitrone into nitroxide and alkoxyamine. [less ▲]

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See detailAntimicrobial activity of polyestyrene particles coated by photo-crooslinked block copolymers containing a biocidal polymethacrylate block
Lenoir, Sandrine ULg; Pagnoulle, Christophe; Detrembleur, Christophe ULg et al

in e-Polymers (2005), 74

A commercially available poly(ethylene-co-butylene) copolymer, end-capped by a short polyisoprene block and a hydroxyl group (PI-b-PEB-OH), has been derivatized into a macroinitiator for atom transfer ... [more ▼]

A commercially available poly(ethylene-co-butylene) copolymer, end-capped by a short polyisoprene block and a hydroxyl group (PI-b-PEB-OH), has been derivatized into a macroinitiator for atom transfer radical polymerization (ATRP) by esterification of the hydroxyl end-group by an activated bromide-containing acyl bromide. Two types of triblock copolymers, Pl-b-PEB-b-poly(dimethylaminoethyl methacrylate) (PDMAEMA) and Pl-b-PEB-b-poly[2-(tert-butylamino)ethyl methacrylate] (PTBAEMA), have been synthesized and used to coat polystyrene particles. These coatings have been permanently immobilized by UV cross-linking of the isoprene units. They exhibit a biocidal activity against Gram-negative bacteria either intrinsically in case of the PTBAEMA block or upon quaternization of the PDMAEMA block by octyl bromide. The antimicrobial activity is directly related to the concentration of coated PS particles in the medium. [less ▲]

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See detailProduction of novel radiation-hardening binding agents
Schmitz, Jörg; Detrembleur, Christophe ULg; Fischer, Wolfgang et al

Patent (2005)

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung neuartiger Bindemittel, die unter Einwirkung aktinischer Strahlung mit ethylenisch ungesättigten Verbindungen unter Polymerisation ... [more ▼]

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung neuartiger Bindemittel, die unter Einwirkung aktinischer Strahlung mit ethylenisch ungesättigten Verbindungen unter Polymerisation reagierende Gruppen und gegebenenfalls auch gegenüber Isocyanaten reaktive Gruppen aufweisen, sowie deren Verwendung in Beschichtungsmitteln. [less ▲]

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See detailProduction of novel radiation-hardening binding agents
Mundstock, Holger; Schmitz, Jörg; Detrembleur, Christophe ULg et al

Patent (2005)

The invention relates to a method for producing novel binding agents comprising groups reacting with polymerising ethylenically unsaturated compounds under the action of actinic radiation and optionally ... [more ▼]

The invention relates to a method for producing novel binding agents comprising groups reacting with polymerising ethylenically unsaturated compounds under the action of actinic radiation and optionally also isocyana te- reactive groups. The invention also relates to the use of said binding agent s in coating substances. [less ▲]

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See detailLow viscosity allophanates having actinically hardenable groups
Schmitz, Jörg; Mundstock, Holger; Fischer, Wolfgang et al

Patent (2005)

Die vorliegende Erfindung betrifft niedrigviskose Umsetzungsprodukte von Polyisocyanaten, die aktivierte unter Einwirkung aktinischer Strahlung mit ethylenisch ungesättigten Verbindungen unter ... [more ▼]

Die vorliegende Erfindung betrifft niedrigviskose Umsetzungsprodukte von Polyisocyanaten, die aktivierte unter Einwirkung aktinischer Strahlung mit ethylenisch ungesättigten Verbindungen unter Polymerisation reagierende Gruppen enthalten, ein Verfahren zu ihrer Herstellung sowie deren Verwendung in Beschichtungsmitteln. [less ▲]

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See detailProduction of novel radiation-hardening binding agents
Detrembleur, Christophe ULg; Weikard, Jan; Greszta-Franz, Dorota et al

Patent (2005)

The invention relates to a method for producing novel binding agents comprising groups reacting with polymerising ethylenically unsaturated compounds under the action of actinic radiation and optionally ... [more ▼]

The invention relates to a method for producing novel binding agents comprising groups reacting with polymerising ethylenically unsaturated compounds under the action of actinic radiation and optionally also isocyanate-reactive groups. The invention also relates to the use of said binding agents in coating substances. [less ▲]

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See detailLow viscosity allophanates having actinically hardenable groups
Detrembleur, Christophe ULg; Weikard, Jan; Geszta-Franz, Dorota et al

Patent (2005)

The invention relates to low-viscosity conversion products of polyisocyanates containing activated groups that, under the influence of actinic radiation, react with ethylenically unsaturated compounds ... [more ▼]

The invention relates to low-viscosity conversion products of polyisocyanates containing activated groups that, under the influence of actinic radiation, react with ethylenically unsaturated compounds while polymerizing, to a method for producing these conversion products, and to their use in coating agents. [less ▲]

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See detailNiedrigviskose Allophanate mit aktinisch härtbaren Gruppen
Detrembleur, Christophe ULg; Weikard, Jan; Grestza-Franz, Dorota et al

Patent (2005)

Die vorliegende Erfindung betrifft niedrigviskose Umsetzungsprodukte von Polyisocyanaten, die aktivierte unter Einwirkung aktinischer Strahlung mit ethylenisch ungesättigten Verbindungen unter ... [more ▼]

Die vorliegende Erfindung betrifft niedrigviskose Umsetzungsprodukte von Polyisocyanaten, die aktivierte unter Einwirkung aktinischer Strahlung mit ethylenisch ungesättigten Verbindungen unter Polymerisation reagierende Gruppen enthalten, ein Verfahren zu ihrer Herstellung sowie deren Verwendung in Beschichtungsmitteln. [less ▲]

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See detailHerstellung von neuen strahlenhärtenden bindemitteln
Detrembleur, Christophe ULg; Weikard, Jan; Greszta-Franz, Dorota et al

Patent (2005)

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung neuartiger Bindemittel, die unter Einwirkung aktinischer Strahlung mit ethylenisch ungesättigten Verbindungen unter Polymerisation ... [more ▼]

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung neuartiger Bindemittel, die unter Einwirkung aktinischer Strahlung mit ethylenisch ungesättigten Verbindungen unter Polymerisation reagierende Gruppen und gegebenenfalls auch gegenüber Isocyanaten reaktive Gruppen aufweisen, sowie deren Verwendung in Beschichtungsmitteln. [less ▲]

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See detailAn easy and economically viable route for the decoration of carbon nanotubes by magnetite nanoparticles, and their orientation in a magnetic field
Stoffelbach, François; Aqil, Abdelhafid ULg; Jérôme, Christine ULg et al

in Chemical Communications (2005), (36), 4532-4533

A simple, cheap and tunable approach for the decoration of carbon nanotubes by magnetite nanoparticles and their orientation in a magnetic field is reported.

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See detailLow viscosity allophanates containing actinically curable groups
Detrembleur, Christophe ULg; Weikard, Jan; Grestza-Franz, Dorota et al

Patent (2005)

A process for preparing binders containing allophanate groups which contain, at the oxygen atom of the allophanate group that is bonded via two single bonds, organic radicals with activated groups capable ... [more ▼]

A process for preparing binders containing allophanate groups which contain, at the oxygen atom of the allophanate group that is bonded via two single bonds, organic radicals with activated groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation; the process includes reacting A) one or more compounds containing uretdione groups with B) one or more OH-functional compounds which contain groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and C) optionally further NCO-reactive compounds, and D) in the presence of one or more compounds containing phenoxide groups, as catalysts.; The binders can be used in preparing coatings, coating materials, coating compositions, adhesives, printing inks, casting resins, dental compounds, sizes, photoresists, stereolithography systems, resins for composite materials and sealants. [less ▲]

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See detailPreparation of new radiation-curing binders
Detrembleur, Christophe ULg; Weikard, Jan; Greszta-Franz, Dorota et al

Patent (2005)

Process for preparing binders including reacting A) one or more NCO-functional compounds containing uretdione groups with B) one or more compounds containing groups capable of participating in ... [more ▼]

Process for preparing binders including reacting A) one or more NCO-functional compounds containing uretdione groups with B) one or more compounds containing groups capable of participating in polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and contain isocyanate-reactive groups, followed by C) reaction with one or more hydroxyl-containing compounds other than B), wherein at least one of these compounds has an OH functionality of >=2, D) in the presence of one or more compounds containing phenoxide groups, as catalysts, and E) optionally auxiliaries and additives, where the reaction with compounds of component C); proceeds at least proportionally with the formation of allophanate groups and where and including binders containing allophanate groups and groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and optionally also contain NCO-reactive groups. The binders are used in coating compositions used to coat substrates [less ▲]

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