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Nešić, Aleksandra

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  • Nešić, Aleksandra (4)
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Asimetrična porozna membrana sa epoksidnim prstenovima

Radovanović, Filip; Nastasović, Aleksandra; Nešić, Aleksandra; Veličković, Sava

(2015)

TY  - BOOK
AU  - Radovanović, Filip
AU  - Nastasović, Aleksandra
AU  - Nešić, Aleksandra
AU  - Veličković, Sava
PY  - 2015
UR  - http://dais.sanu.ac.rs/123456789/807
AB  - Pronalazak se odnosi na asimetričnu poroznu membranu sa epoksidnim prstenovima. Ovakva membrana se može dobiti pojednostavljenim postupkom koji izbegava mnoge dodatne operacije u cilju funkcionalizacije postojećih asimetričnih membrana. Po tom postupku homogeni rastvor za polimerizaciju koji obuhvata reaktivnu komponentu sa epoksidnim prstenovima, umreživač, staklasti polimer i rastvarač, oblikuje se u određenu formu, izloži izvoru zračenja u cilju polimerizacije i umrežavanja reaktivnih komponenata i potopi u koagulaciono kupatilo u kome se pomenuta membrana konačno formira. Epoksidni prstenovi se jednostavnim hemijskim reakcijama mogu konvertovati u željene funkcionalne grupe i takve membrane se mogu koristiti za čitav niz separacionih procesa, kao što su ultrafiltracija, membranska adsorpcija za hemijske ili biohemijske primene, ili u sklopu senzora zasnovanih na membranama i tankim filmovima.
AB  - The invention herewith described refers to the asymmetric porous membrane with epoxide rings. Such membrane can be prepared using a simplified method which omits many additional steps carried out in order to functionalize existing asymmetric membranes. According to this method a homogeneous polymerizable solution comprising a reactive component with epoxide rings, a crosslinker, a glassy polymer, and a solvent, is formed into a shaped article, exposed to a source of irradiation to polymerize and crosslink the reactive components, and immersed into a coagulation bath to form said membrane.; Epoxide rings can be converted into desired functional groups using simple chemical reactions and such membranes can be utilized for a broad range of separation processes including ultrafiltration, membrane adsorption for chemical or biochemical applications, or in sensing devices based on membranes and thin films.
T1  - Asimetrična porozna membrana sa epoksidnim prstenovima
ER  - 
@book{
author = "Radovanović, Filip and Nastasović, Aleksandra and Nešić, Aleksandra and Veličković, Sava",
year = "2015",
url = "http://dais.sanu.ac.rs/123456789/807",
abstract = "Pronalazak se odnosi na asimetričnu poroznu membranu sa epoksidnim prstenovima. Ovakva membrana se može dobiti pojednostavljenim postupkom koji izbegava mnoge dodatne operacije u cilju funkcionalizacije postojećih asimetričnih membrana. Po tom postupku homogeni rastvor za polimerizaciju koji obuhvata reaktivnu komponentu sa epoksidnim prstenovima, umreživač, staklasti polimer i rastvarač, oblikuje se u određenu formu, izloži izvoru zračenja u cilju polimerizacije i umrežavanja reaktivnih komponenata i potopi u koagulaciono kupatilo u kome se pomenuta membrana konačno formira. Epoksidni prstenovi se jednostavnim hemijskim reakcijama mogu konvertovati u željene funkcionalne grupe i takve membrane se mogu koristiti za čitav niz separacionih procesa, kao što su ultrafiltracija, membranska adsorpcija za hemijske ili biohemijske primene, ili u sklopu senzora zasnovanih na membranama i tankim filmovima., The invention herewith described refers to the asymmetric porous membrane with epoxide rings. Such membrane can be prepared using a simplified method which omits many additional steps carried out in order to functionalize existing asymmetric membranes. According to this method a homogeneous polymerizable solution comprising a reactive component with epoxide rings, a crosslinker, a glassy polymer, and a solvent, is formed into a shaped article, exposed to a source of irradiation to polymerize and crosslink the reactive components, and immersed into a coagulation bath to form said membrane.; Epoxide rings can be converted into desired functional groups using simple chemical reactions and such membranes can be utilized for a broad range of separation processes including ultrafiltration, membrane adsorption for chemical or biochemical applications, or in sensing devices based on membranes and thin films.",
title = "Asimetrična porozna membrana sa epoksidnim prstenovima"
}
Radovanović, F., Nastasović, A., Nešić, A.,& Veličković, S. (2015). Asimetrična porozna membrana sa epoksidnim prstenovima.
.
Radovanović F, Nastasović A, Nešić A, Veličković S. Asimetrična porozna membrana sa epoksidnim prstenovima. 2015;
Radovanović Filip, Nastasović Aleksandra, Nešić Aleksandra, Veličković Sava, "Asimetrična porozna membrana sa epoksidnim prstenovima" (2015)

Novel negatively-charged ultrafiltration membranes made by a combination of immersion precipitation and photopolymerization

Radovanović, Filip; Tomković, Tanja; Nastasović, Aleksandra; Veličković, Sava; Nešić, Aleksandra; Onjia, Antonije

(Belgrade : Serbian Chemical Society, 2013)

TY  - CONF
AU  - Radovanović, Filip
AU  - Tomković, Tanja
AU  - Nastasović, Aleksandra
AU  - Veličković, Sava
AU  - Nešić, Aleksandra
AU  - Onjia, Antonije
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/797
AB  - Ultrafiltration (UF) membranes are currently used in industry for the concentration of proteins and other macromolecules. Performance of UF membranes is generally limited by a trade-off between permeability and selectivity [1]. However, electrically-charged ultrafiltration membranes can provide a dramatic improvement in ultrafiltration performance [2]. Novel UF membranes were made by combining traditional immersion precipitation process for making membranes with photopolymerization of the casting solution comprising polyethersulfone, glycidyl methacrylate and other reactive monomers. Negative charges were introduced either by initially using 2-acrylamido-2-methylpropane sulfonic acid as a reactive monomer, or were later created by epoxide ring opening of crosslinked glycidyl methacrylate. As shown in Fig. 1, selectivity of these membranes significantly improved as the concentration of negatively-charged groups in the membrane increased. The effects of membrane composition on the properties and separation performance of these novel UF membranes will be presented.
PB  - Belgrade : Serbian Chemical Society
C3  - 8th International Conference of the Chemical Societies of the South-East European Countries - ICOSECS 8, Belgrade, Serbia, June 27-29, 2013: Book of Abstracts
T1  - Novel negatively-charged ultrafiltration membranes made by a combination of immersion precipitation and photopolymerization
SP  - 131
EP  - 131
ER  - 
@conference{
author = "Radovanović, Filip and Tomković, Tanja and Nastasović, Aleksandra and Veličković, Sava and Nešić, Aleksandra and Onjia, Antonije",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/797",
abstract = "Ultrafiltration (UF) membranes are currently used in industry for the concentration of proteins and other macromolecules. Performance of UF membranes is generally limited by a trade-off between permeability and selectivity [1]. However, electrically-charged ultrafiltration membranes can provide a dramatic improvement in ultrafiltration performance [2]. Novel UF membranes were made by combining traditional immersion precipitation process for making membranes with photopolymerization of the casting solution comprising polyethersulfone, glycidyl methacrylate and other reactive monomers. Negative charges were introduced either by initially using 2-acrylamido-2-methylpropane sulfonic acid as a reactive monomer, or were later created by epoxide ring opening of crosslinked glycidyl methacrylate. As shown in Fig. 1, selectivity of these membranes significantly improved as the concentration of negatively-charged groups in the membrane increased. The effects of membrane composition on the properties and separation performance of these novel UF membranes will be presented.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "8th International Conference of the Chemical Societies of the South-East European Countries - ICOSECS 8, Belgrade, Serbia, June 27-29, 2013: Book of Abstracts",
title = "Novel negatively-charged ultrafiltration membranes made by a combination of immersion precipitation and photopolymerization",
pages = "131-131"
}
Radovanović, F., Tomković, T., Nastasović, A., Veličković, S., Nešić, A.,& Onjia, A. (2013). Novel negatively-charged ultrafiltration membranes made by a combination of immersion precipitation and photopolymerization.
8th International Conference of the Chemical Societies of the South-East European Countries - ICOSECS 8, Belgrade, Serbia, June 27-29, 2013: Book of AbstractsBelgrade : Serbian Chemical Society., 131-131.
Radovanović F, Tomković T, Nastasović A, Veličković S, Nešić A, Onjia A. Novel negatively-charged ultrafiltration membranes made by a combination of immersion precipitation and photopolymerization. 8th International Conference of the Chemical Societies of the South-East European Countries - ICOSECS 8, Belgrade, Serbia, June 27-29, 2013: Book of Abstracts. 2013;:131-131
Radovanović Filip, Tomković Tanja, Nastasović Aleksandra, Veličković Sava, Nešić Aleksandra, Onjia Antonije, "Novel negatively-charged ultrafiltration membranes made by a combination of immersion precipitation and photopolymerization" (2013):131-131

Asymmetric polyethersulfone membranes with crosslinked poly(glycidyl methacrylate) particles

Radovanović, Filip; Tomković, Tanja; Nastasović, Aleksandra; Veličković, Sava; Nešić, Aleksandra; Onjia, Antonije

(Belgrade : Serbian Chemical Society, 2013)

TY  - CONF
AU  - Radovanović, Filip
AU  - Tomković, Tanja
AU  - Nastasović, Aleksandra
AU  - Veličković, Sava
AU  - Nešić, Aleksandra
AU  - Onjia, Antonije
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/796
AB  - Polyethersulfone (PES) is frequently used for high-performance ultrafiltration membranes. Functionalization of PES membranes is required to introduce new groups for specific applications, such as affinity membranes for bioseparations [1]. Functionalization methods include bulk modification of PES material, blending of PES with another material, or surface modification of PES membranes [2]. In this work a novel method for introducing functional groups in asymmetric PES membranes is presented [3]. A cast film comprising PES, glycidyl methacrylate (GMA) and a common solvent was exposed to UV irradiation to form a gel of crosslinked polyGMA. The gel was then immersed in a water bath to create an asymmetric membrane with crosslinked polyGMA particles, as shown in Fig. 1. A simple treatment of these membranes with diethylene triamine was used to open the epoxide rings in polyGMA particles and introduce amine functional groups. The effects of monomer concentrations on the properties and separation performance of these novel membrane adsorbers will be presented.
PB  - Belgrade : Serbian Chemical Society
C3  - 8th International Conference of the Chemical Societies of the South-East European Countries - ICOSECS 8, Belgrade, Serbia, June 27-29, 2013: Book of Abstracts
T1  - Asymmetric polyethersulfone membranes with crosslinked poly(glycidyl methacrylate) particles
SP  - 128
EP  - 128
ER  - 
@conference{
author = "Radovanović, Filip and Tomković, Tanja and Nastasović, Aleksandra and Veličković, Sava and Nešić, Aleksandra and Onjia, Antonije",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/796",
abstract = "Polyethersulfone (PES) is frequently used for high-performance ultrafiltration membranes. Functionalization of PES membranes is required to introduce new groups for specific applications, such as affinity membranes for bioseparations [1]. Functionalization methods include bulk modification of PES material, blending of PES with another material, or surface modification of PES membranes [2]. In this work a novel method for introducing functional groups in asymmetric PES membranes is presented [3]. A cast film comprising PES, glycidyl methacrylate (GMA) and a common solvent was exposed to UV irradiation to form a gel of crosslinked polyGMA. The gel was then immersed in a water bath to create an asymmetric membrane with crosslinked polyGMA particles, as shown in Fig. 1. A simple treatment of these membranes with diethylene triamine was used to open the epoxide rings in polyGMA particles and introduce amine functional groups. The effects of monomer concentrations on the properties and separation performance of these novel membrane adsorbers will be presented.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "8th International Conference of the Chemical Societies of the South-East European Countries - ICOSECS 8, Belgrade, Serbia, June 27-29, 2013: Book of Abstracts",
title = "Asymmetric polyethersulfone membranes with crosslinked poly(glycidyl methacrylate) particles",
pages = "128-128"
}
Radovanović, F., Tomković, T., Nastasović, A., Veličković, S., Nešić, A.,& Onjia, A. (2013). Asymmetric polyethersulfone membranes with crosslinked poly(glycidyl methacrylate) particles.
8th International Conference of the Chemical Societies of the South-East European Countries - ICOSECS 8, Belgrade, Serbia, June 27-29, 2013: Book of AbstractsBelgrade : Serbian Chemical Society., 128-128.
Radovanović F, Tomković T, Nastasović A, Veličković S, Nešić A, Onjia A. Asymmetric polyethersulfone membranes with crosslinked poly(glycidyl methacrylate) particles. 8th International Conference of the Chemical Societies of the South-East European Countries - ICOSECS 8, Belgrade, Serbia, June 27-29, 2013: Book of Abstracts. 2013;:128-128
Radovanović Filip, Tomković Tanja, Nastasović Aleksandra, Veličković Sava, Nešić Aleksandra, Onjia Antonije, "Asymmetric polyethersulfone membranes with crosslinked poly(glycidyl methacrylate) particles" (2013):128-128

Novel asymmetric polyethersulfone membranes for ultrafiltration application

Nešić, Aleksandra; Veličković, Sava; Radovanović, Filip; Nastasović, Aleksandra

(Belgrade : Materials Research Society of Serbia; Institute of Technical Sciences of SASA; Vinča Institute of Nuclear Sciences, University of Belgrade, 2012)

TY  - CONF
AU  - Nešić, Aleksandra
AU  - Veličković, Sava
AU  - Radovanović, Filip
AU  - Nastasović, Aleksandra
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/795
AB  - Ultrafiltration has recently become popular as a promising separation method in many industrial processes covering fractionation and concentration steps in the food, pharmaceutical and biotechnology industries as much as in water and wastewater treatments. This paper presents the synthesis of novel asymmetric polyethersulfone membranes containing an interpenetrating network of poly(glycidyl methacrylate) (PGMA). In order to improve the properties and application range of membranes, the epoxy groups from PGMA are converted to amine groups by ring opening under alkaline conditions. Membranes before and after functionalization are characterized by FTIR-ATR, elememtal analysis and water permeability.
PB  - Belgrade : Materials Research Society of Serbia; Institute of Technical Sciences of SASA; Vinča Institute of Nuclear Sciences, University of Belgrade
C3  - Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts
T1  - Novel asymmetric polyethersulfone membranes for ultrafiltration application
SP  - 82
EP  - 82
ER  - 
@conference{
author = "Nešić, Aleksandra and Veličković, Sava and Radovanović, Filip and Nastasović, Aleksandra",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/795",
abstract = "Ultrafiltration has recently become popular as a promising separation method in many industrial processes covering fractionation and concentration steps in the food, pharmaceutical and biotechnology industries as much as in water and wastewater treatments. This paper presents the synthesis of novel asymmetric polyethersulfone membranes containing an interpenetrating network of poly(glycidyl methacrylate) (PGMA). In order to improve the properties and application range of membranes, the epoxy groups from PGMA are converted to amine groups by ring opening under alkaline conditions. Membranes before and after functionalization are characterized by FTIR-ATR, elememtal analysis and water permeability.",
publisher = "Belgrade : Materials Research Society of Serbia; Institute of Technical Sciences of SASA; Vinča Institute of Nuclear Sciences, University of Belgrade",
journal = "Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts",
title = "Novel asymmetric polyethersulfone membranes for ultrafiltration application",
pages = "82-82"
}
Nešić, A., Veličković, S., Radovanović, F.,& Nastasović, A. (2012). Novel asymmetric polyethersulfone membranes for ultrafiltration application.
Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of AbstractsBelgrade : Materials Research Society of Serbia; Institute of Technical Sciences of SASA; Vinča Institute of Nuclear Sciences, University of Belgrade., 82-82.
Nešić A, Veličković S, Radovanović F, Nastasović A. Novel asymmetric polyethersulfone membranes for ultrafiltration application. Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts. 2012;:82-82
Nešić Aleksandra, Veličković Sava, Radovanović Filip, Nastasović Aleksandra, "Novel asymmetric polyethersulfone membranes for ultrafiltration application" (2012):82-82