Results 21 to 30 of about 381 (162)

Post Polymerisation Hypercrosslinking with Emulsion Templating for Hierarchical and Multi-Level Porous Polymers

open access: yesActa Chimica Slovenica, 2020
Porosity in polymers and polymeric materials adds to their functionality due to achieving the desired tailored characteristics porosity offers, such as improved mass transfer through the material, improved accessibility of reactive sites, reduced overall
Amadeja Koler, Irena Pulko, Peter Krajnc
doaj   +1 more source

Hypercrosslinked Additives for Ageless Gas‐Separation Membranes [PDF]

open access: yesAngewandte Chemie, 2016
AbstractThe loss of internal pores, a process known as physical aging, inhibits the long‐term use of the most promising gas‐separation polymers. Previously we reported that a porous aromatic framework (PAF‐1) could form a remarkable nanocomposite with gas‐separation polymers to stop aging.
Lau, CH   +7 more
openaire   +3 more sources

Hydrophilic hypercrosslinked polymeric sorbents for the solid-phase extraction of polar contaminants from water [PDF]

open access: yes, 2010
Three new hypercrosslinked polymers with hydrophilic character arising from hydroxyl moieties in their skeletons have been prepared in microsphere format and applied to the off-line solid-phase extraction (SPE) of polar compounds from water samples.
Borrull, F.   +5 more
core   +1 more source

Hyperporous Carbons from Hypercrosslinked Polymers

open access: yesAdvanced Materials, 2016
Porous carbons with extremely high surface areas are produced through the carbonization of hypercrosslinked benzene, pyrrole, and thiophene. Such carbons show largely microporous and mesoporous domains and exhibit Brunaeur-Emmett-Teller surface areas up to 4300 m2 g-1 . The best performing material also displays exceptionally high CO2 and H2 uptakes.
Lee, J-SM   +3 more
openaire   +3 more sources

Synthesis and application of hypercrosslinked polymers with weak cation-exchange character for the selective extraction of basic pharmaceuticals from complex environmental water samples [PDF]

open access: yes, 2010
The synthesis of high specific surface area sorbents (HXLPP-WCX) in the form of hypercrosslinked polymer microspheres with narrow particle size distributions, average particle diameters around 6 µm, and weak cation exchange (WCX) character, is described.
Borrull, F.   +5 more
core   +1 more source

The synthesis and characterisation of porous and monodisperse, chemically modified hypercrosslinked poly(acrylonitrile)-based terpolymer as a sorbent for the adsorption of acidic pharmaceuticals [PDF]

open access: yes, 2020
The synthesis and characterization of porous poly(acrylonitrile(AN)-co-divinylbenzene-80 (DVB-80)-co-vinylbenzylchloride (VBC)) polymers with high specific surface areas and weak anion-exchange character have been successfully researched.
Abdullah, Luqman Chuah   +5 more
core   +1 more source

Weak anion-exchange hypercrosslinked sorbent in on-line solid-phase extraction-liquid chromatography coupling to achieve automated determination with an effective clean-up [PDF]

open access: yes, 2010
A mixed-mode polymeric sorbent was on-line coupled to liquid chromatography (LC) for the first time and applied it to the selective solid-phase extract a group of pharmaceuticals in complex environmental water samples. The mixed-mode polymeric sorbent is
Borrull, F.   +4 more
core   +1 more source

Isoterm Adsorpsi Arang Kulit Jengkol Sebagai Adsorben CO2 [PDF]

open access: yes, 2023
The concentration of carbon dioxide (CO2) gas in the atmosphere continues to increase every year, mainly due to human activities such as burning fossil fuels for energy, industrial processes, and transportation.
Kodama, Akio   +3 more
core   +2 more sources

Continuous flow knitting of a triptycene hypercrosslinked polymer [PDF]

open access: yesChemical Communications, 2019
Hypercrosslinked polymers suitable for carbon capture were produced in continuous flow synthesis using 10% of the time required for typical batch reactions, precluding the need for lengthy reactions to produce microporous polymeric adsorbents.
Cher Hon Lau   +5 more
openaire   +6 more sources

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

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