Results 1 to 10 of about 3,151 (181)

Styrene–divinylbenzene copolymers. II. The conservation of porosity in styrene–divinylbenzene copolymer matrices and derived ion‐exchange resins [PDF]

open access: yesJournal of Applied Polymer Science, 1975
AbstractThe collapse of pores in styrene–divinylbenzene copolymers and corresponding ion‐exchange resins was studied during the removal of solvating liquids. The process can be followed in a most simple way by measuring the volume of the bead‐shaped copolymers upon drying. Other parameters observed during drying were the apparent density and incidently
Hilgen, H., de Jong, G.J., Sederel, W.L.
core   +8 more sources

Styrene–divinylbenzene copolymers. Construction of porosity in styrene divinylbenzene matrices [PDF]

open access: yesJournal of Applied Polymer Science, 1973
Experimental data are presented describing the formation of porosity in styrene-divinylbenzene copolymers as a function of the organic components present during the suspension polymerization. The reaction system contains a mixture of diluents such as toluene and hexane, which results in matrices that differ significantly in pore structure from the ...
Sederel, W.L., de Jong, G.J.
openaire   +4 more sources

New Polymeric Adsorbents Functionalized with Aminobenzoic Groups for the Removal of Residual Antibiotics [PDF]

open access: yesMolecules, 2022
In this paper, we present the synthesis of new polymeric adsorbents derived from macroporous chloromethylated styrene–divinylbenzene (DVB) copolymers with different cross-linking degrees functionalized with the following aminobenzoic groups: styrene—6.7%
Radu Ardelean   +4 more
doaj   +2 more sources

Propylene-Ethylene Copolymer Covalent Adaptable Networks Synthesized by Resonance-Stabilized, Radical-Based Reactive Processing with Excellent Elevated-Temperature Creep Resistance. [PDF]

open access: yesChemSusChem
Propylene‐ethylene copolymer covalent adaptable networks (PEC CANs) are synthesized via one‐step, radical‐based reactive processing with the use of initiator, dynamic cross‐linkers, and vinyl aromatic additives. The best CAN suppresses over 98% of creep at 100 °C (semicrystalline state) for 10,000 s compared to neat PEC.
Huang YW   +6 more
europepmc   +2 more sources

Inverted sugar syrup attained from sucrose hydrolysis using a membrane reactor [PDF]

open access: yesBrazilian Journal of Pharmaceutical Sciences, 2010
Invertase, whether adsorbed on styrene-divinylbenzene copolymers or otherwise, was used for continuous sucrose hydrolysis using a cell-type membrane reactor (CTMR), coupled with an ultra (UF-100kDa), or a microfiltration (MF- pore diameter of 5 µm ...
Ester Junko Tomotani, Michele Vitolo
doaj   +5 more sources

Evaluation of antimicrobial action of silver composite microspheres based on styrene-divinylbenzene copolymer [PDF]

open access: yesPolímeros, 2020
This article reports the evaluation of the antimicrobial activity of a silver composite based on sulfonic resin. The antimicrobial action of the composite was evaluated against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus through ...
Maria Aparecida Larrubia Granado Moreira Rodrigues Mandu   +4 more
doaj   +1 more source

Preparation of Macroporous Styrene – Divinyl Benzene Copolymers [PDF]

open access: yesEngineering and Technology Journal, 2007
Suspension polymerization technique is used for the preparation ofmacroporous Styrene – Divinylbenzene (S-DVB) copolymer beads withdifferent mole percent of divinylbenzene content in the presence of differentcontents and types of diluents which gives the
Matheel D. Al-Sabti   +2 more
doaj   +1 more source

β-Phosphonated Glycine Pendant Groups Grafted on Styrene-6.7% Divinylbenzene Copolymers: Synthesis and Their Application as Photocatalysts

open access: yesApplied Sciences, 2023
Environmental pollution from organic contaminants caused by textile dyeing is a real danger. Wastewater from the textile industry has high organic loads, as well as dyes and chemical compounds used in their preparation. Among the azo dyes, Congo red (CR)
Adriana Popa   +4 more
doaj   +1 more source

Antimicrobial activity of silver composites obtained from crosslinked polystyrene with polyHIPE structures

open access: yesPolímeros, 2021
The literature reports several potential applications of polymers prepared with high internal phase emulsions (HIPEs). However, the evaluation of these materials as supports for antimicrobial agents has not been explored.
Roberta Trovão Santos   +6 more
doaj   +1 more source

Preparação de copolímeros à base de 2-vinilpiridina com propriedades bactericidas

open access: yesQuímica Nova, 2011
We report the development of two copolymers based on 2-vinylpyridine, styrene and divinylbenzene (2Vpy-Sty-DVB) with different porosity degrees. The copolymers were subsequently quaternized with methyl iodide.
Aline S. S. Valle   +6 more
doaj   +1 more source

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