Results 21 to 30 of about 3,151 (181)

Styrene-divinylbenzene copolymer grafted with phosphonic acid dialkyl esters

open access: yesJournal of the Serbian Chemical Society, 2004
The functionalization of a crosslinked chloromethylated polystyrene 8% divinylbenzene copolymer with phosphonic ester groups is detailed. The reacton conditions were studied in order to determine the optimal conditions for obtaining only diesters. Astatistical method for the calculation of the fraction of repetive units for the inited and final resin ...
Ilia Gheorghe   +3 more
openaire   +3 more sources

Removal of Phenol from aqueous solutions by Polymeric composites containing Ni and Co particles

open access: yesPolímeros, 2013
Magnetic composites have a wide range of potential technological applications; however the evaluation of this material for extraction of phenolic compounds has not been sufficiently studied. Due to its high toxicity and solubility the removal of phenolic
Simone Simplício   +8 more
doaj   +1 more source

Immobilized photosensitizers for antimicrobial applications [PDF]

open access: yes, 2015
Photodynamic antimicrobial chemotherapy (PACT) is a very promising alternative to conventional antibiotics for the efficient inactivation of pathogenic microorganisms; this is due to the fact that it is virtually impossible for resistant strains to ...
Boyle, Ross W.   +2 more
core   +1 more source

Síntese e caracterização de copolímeros de estireno e divinilbenzeno clorometilados Synthesis and characterization of chloromethylated styrene-divinylbenzene copolymers

open access: yesPolímeros, 2004
A reação de clorometilação de copolímeros de estireno e divinilbenzeno (S-DVB) em presença de HCl, formaldeído e cloreto de zinco foi estudada em meios aquoso e orgânico. O copolímero S-DVB foi, primeiramente, sintetizado por polimerização em suspensão e
Viviane G. Teixeira   +2 more
doaj   +1 more source

Copolímeros de estireno-divinilbenzeno impregnados com agentes complexantes organofosforados para separação de terras raras Styrene-divinylbenzene copolymers loaded with organophosphorus chelating agents for rare earths separation

open access: yesPolímeros, 1998
RESUMO: Copolímeros de estireno-divinilbenzeno para aplicação em cromatografia de extração foram sintetizados em presença de agentes complexantes seletivos para terras raras, o fosfato monoácido de bis(2-etil-hexila), DEHPA e o 2-etil-hexil fosfonato ...
Celina C. R. Barbosa   +3 more
doaj   +1 more source

Microporous Hyper-Crosslinked Polystyrenes and Nanocomposites with High Adsorption Properties: A Review [PDF]

open access: yes, 2017
Hyper-crosslinked (HCL) polystyrenes show outstanding properties, such as high specific surface area and adsorption capability. Several researches have been recently focused on tailoring their performance for specific applications, such as gas ...
Ambrogi, Veronica   +4 more
core   +2 more sources

Surface Thermodynamic Properties of Styrene–Divinylbenzene Copolymer Modified by Supramolecular Structure of Melamine Using Inverse Gas Chromatography

open access: yesChemistry
The surface thermodynamic properties of polymers and copolymers modified by supramolecular structures are used in several industrial processes, such as selective adsorption, paints, coatings, colloids, and adhesion applications.
Tayssir Hamieh, Vladimir Yu Gus'kov
doaj   +1 more source

Principais rotas de síntese de resinas complexantes de mercúrio Chelating resins for recovery of mercury: the main routes of synthesis

open access: yesPolímeros, 2007
A recuperação de espécies contendo mercúrio utilizando resinas complexantes obtidas a partir da modificação de suportes poliméricos vem atraindo cada vez mais a atenção dos pesquisadores. São muitas as combinações de suportes e grupos complexantes para a
Luciana da Cunha   +3 more
doaj   +1 more source

Porous maleic anhydride–styrene–divinylbenzene copolymer beads

open access: yesJournal of Applied Polymer Science, 1987
The formation of the porosity and the pore stability in maleic anhydride–styrene–divinylbenzene (MAn–St–DVB) copolymer beads were investigated using the apparent density measurements of the samples dried from methanol (maximum porosity) and from dioxane (stable porosity).
openaire   +2 more sources

Conformal single-layer encapsulation of PEDOT at low substrate temperature [PDF]

open access: yes, 2014
In this work, we demonstrate a single-layer encapsulation method for poly(3,4-ethylenedioxythiophene) (PEDOT). This method is achieved by initiated chemical vapor deposition (iCVD) process, which is scalable and employs solvent-free and low-substrate ...
Chen, Nan   +2 more
core   +1 more source

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