Branko Dunjić

University of Belgrade

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Jasna Djonlagić

Pittsburg State University

Patrick Gámez

Universitat de Barcelona

Marc Lemaire

Institut de Chimie et Biochimie Moléculaires et Supramoléculaires

Srba Tasic

Bayer (Germany)

Branislav Bozic

University of Belgrade

Alain Favre‐Réguillon

Conservatoire National des Arts et Métiers

Fabienne Fache

Université Claude Bernard Lyon 1

Nathalie Dumont

University of Namur

Alisa Zlatanić

Pittsburg State University

Maurice Sépulchre

Sorbonne Université

Cooperative Institutions

University of Belgrade

Centre National de la Recherche Scientifique

Université Claude Bernard Lyon 1

Institute for Technology of Nuclear and other Mineral Raw Materials

Catalyse

Institute of Chemistry, Technology and Metallurgy

Institut de Recherches sur la Catalyse et l'Environnement de Lyon

Institut de Chimie et Biochimie Moléculaires et Supramoléculaires

École d'Ingénieurs en Chimie et Sciences du Numérique

Vinča Institute of Nuclear Sciences

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ChemInform Abstract: C2 Diamine, Pseudo‐C2 Poly(amide) and Poly(urea) as Chiral Inductors Asymmetric Catalysis.

ChemInform (1994)

Patrick Gámez Branko Dunjić Fabienne Fache Marc Lemaire

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Amide

10.1002/chin.199443051

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Citations (0)

DESIGN OF ION-EXCHANGE RESINS SELECTIVE OF CAESIUM. SYNERGISTIC EFFECT OF MACROCYCLE IN PHENOLIC RESINS

Separation Science and Technology (2001)

Alain Favre‐Réguillon Branko Dunjić Nathalie Dumont Marc Lemaire

The extraction of caesium by resorcinol based resins was investigated. At high hydroxide concentration ([OH−] = 0.15 M), the alkali-metal cations’ sorption selectivity (determined in competitive extraction system) for resorcinol resins was found to be Cs+ > Li+ > Rb+ > K+ > Na+, whereas at pH 7 this selectivity was found to be Cs+ > Rb+ > K+ >> Na+ ≈ Li+. Different mechanisms of ion exchange occurring in these phenolic resins can explain this selectivity series. Then different macrocycles were incorporated in the resins. The ionoselective properties of these new ion-exchange resins are strongly influenced by the nature of the crosslinker. The presence of macrocycles lead to an improvement of selectivity towards caesium in relation with the size of the macrocycles introduced.

Resorcinol

Caesium

Ion-exchange resin

Calixarene

10.1081/ss-100102933

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Citations (2)

Dynamic mechanical analysis study of the curing of phenol‐formaldehyde novolac resins

Journal of Applied Polymer Science (2001)

Slobodanka Marković Branko Dunjić Alisa Zlatanić Jasna Djonlagić

Abstract The curing reaction of typical commercial phenol‐formaldehyde novolac resins with hexamethylentetraamine (HMTA) was followed by dynamic mechanical analysis. The evolution of the rheological parameters, such as storage modulus G ′, loss modulus G ″, and tanδ ( G ″/ G ′), as a function of time, for samples of the phenolic resins on cloth, was recorded. The curing reaction, leading to the formation of a crosslinked structure, is described by a third‐order phenomenological equation. This equation takes into account a self‐acceleration effect, as a consequence not only of the chemical reaction of crosslinking after the gel point but of phase segregation as well. This rheokinetic model of the curing of phenolic novolac resins permits the determination of the numerical values of the kinetic equation constants. The influence of the composition, structure, and physical treatment on the curing kinetics of the novolac resins is evaluated. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 1902–1913, 2001

Phenol formaldehyde resin

10.1002/app.1623

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Citations (40)

New Hyperbranched Urethane Acrylates

ACS symposium series (2005)

Branislav Bozic Srba Tasic Radomir Matović Radomir N. Saičić Branko Dunjić

Novel type of crosslinkable polymeric photoinitiators with hyperbranched architecture were synthesized and characterized. This type of UV curable hyperbranched urethane acrylates utilizes xanthate groups for photoinitiation and controlled crosslinking. A series of polymers were synthesized with different types of functionalization by varying type of the hydroxyl alkyl (meta)acrylates. Obtained polymers have low viscosities and high molecular weights. Glass transition temperatures of crosslinked samples were surprisingly high for their chemical compositions.

Xanthate

Surface Modification

10.1021/bk-2005-0916.ch015

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ChemInform Abstract: Homogeneous and Heterogeneous Pd‐Catalyzed Enantioselective Alkylation with C2‐symmetric Chiral Nitrogen Ligands.

ChemInform (1995)

Patrick Gámez Branko Dunjić Fabienne Fache Marc Lemaire

10.1002/chin.199543044

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Synthesis and evaluation of new polyurethane — based material for ion separation

Tetrahedron Letters (1995)

Alain Favre‐Réguillon Nathalie Dumont Branko Dunjić Marc Lemaire

10.1016/0040-4039(95)01272-j

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Citations (6)

Dynamical mechanical analysis of photocrosslinked hyperbranched urethane acrylates

Journal of the Serbian Chemical Society (2004)

Enis S. Džunuzović Srba Tasic Branislav Bozic D. Babić Branko Dunjić

A series of acrylate functionalized samples based on hyperbranched hydroxy-terminated polyesters with different molecular weights and different degrees of acrylation were synthesized. The obtained urethane acrylates were slightly yellow viscose liquids. Their composition was characterized by FTIR and 1H-NMR spectroscopy and their molecular weights were measured by GPC. All the synthesized samples were diluted with 25 wt.% 1,4-butanediol dimethacrylate (BDDM). The rheological properties of the uncured samples and the dynamic mechanical properties of the UV cured samples were examined. All the samples exhibit Newtonian behavior, which indicates the absence of physical entanglements in these polymers. The viscosity increases with increasing number of acrylic groups permolecule. The glass transition temperature of the UV cured samples increases with increasing the number of acrylic groups permolecule. The value of the storage modulus in the rubber-elastic plateau and the cross-link density increase with increasing number of acrylic groups permolecule. The formed networks are inhomogeneous and the residual unsaturation is the highest in the samples with the largest number of acrylic groups per molecule.

Degree of unsaturation

10.2298/jsc0406441d

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Citations (18)

ChemInform Abstract: Recent Advances in Homogeneous and Heterogeneous Asymmetric Catalysis with Nitrogen‐Containing Ligands

ChemInform (1998)

Fabienne Fache Branko Dunjić Patrick Gámez Marc Lemaire

Homogeneous Catalysis

10.1002/chin.199828336

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Citations (0)

Synthesis of new hyperbranched urethane-acrylates and their evaluation in UV-curable coatings

Progress in Organic Coatings (2004)

Srba Tasic Branislav Bozic Branko Dunjić

UV-Curing

Thermomechanical analysis

10.1016/j.porgcoat.2004.07.021

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Citations (123)

SYNTHESIS AND EVALUATION OF RESORCINOL-BASED ION-EXCHANGE RESINS FOR THE SELECTIVE REMOVAL OF CESIUM

Solvent Extraction and Ion Exchange (2001)

Alain Favre‐Réguillon Branko Dunjić Marc Lemaire Rodolph Chomel

Control of the reaction conditions during the alkaline polycondensation of resorcinol with formaldehyde leads to polymeric resins with improved capacity toward caesium. The resins obtained are characterized by determining their moisture regain and ion-exchange capacity. The distribution coefficient (D) for alkali-metal cations are determined in a competitive extraction system at different pH. The alkali-metal cation sorption selectivity series is strongly influenced by the pH of the solution. Two kinds of mechanism can explain these selectivity series. Extraction of caesium from simulated radioactive waste was studied at different pH in the presence of a large excess of sodium. The study also includes the kinetic and the ion-exchange capacity for caesium of the sodium form of the resins.

Caesium

Resorcinol

Ion-exchange resin

10.1081/sei-100001382

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Citations (30)