Results 1 to 10 of about 362 (150)

Structural control of a novel hierarchical porous carbon material and its adsorption properties [PDF]

open access: yesScientific Reports, 2022
Novel hierarchical porous carbon materials (HPCs) were fabricated via a reactive template-induced in situ hypercrosslinking procedure. The effects of carbonization conditions on the microstructure and morphology of HPCs were investigated, and the ...
Li-Feng Cai   +4 more
doaj   +2 more sources

Hypercrosslinked materials: preparation, characterisation and applications [PDF]

open access: yesPolymer Chemistry, 2015
Hypercrosslinked materials have experienced a great expansion in both the synthetic approach and the field of applications.
Fontanals, N.   +3 more
openaire   +5 more sources

Fabrication, Facilitating Gas Permeability, and Molecular Simulations of Porous Hypercrosslinked Polymers Embedding 6FDA-Based Polyimide Mixed-Matrix Membranes [PDF]

open access: yesMolecules, 2023
Novel polymers applied in economic membrane technologies are a perennial hot topic in the fields of natural gas purification and O2 enrichment. Herein, novel hypercrosslinked polymers (HCPs) incorporating 6FDA-based polyimide (PI) MMMs were prepared via ...
Chaohua Song   +9 more
doaj   +2 more sources

Hypercrosslinked porous polyporphyrin by metal-free protocol: characterization, uptake performance, and heterogeneous catalysis [PDF]

open access: yesDesigned Monomers and Polymers, 2017
Through metal-free protocol, hypercrosslinked porous polyporphyrin with permanent porosity was obatined via the Friedel–Crafts alkylation of tetracarbazolylporphyrin using formaldehyde dimethyl acetal as an external cross-linker.
Li-Juan Feng   +4 more
doaj   +2 more sources

Fabrication of fire-retardant building materials via a hyper-crosslinking chemical conversion process from waste polystyrenes

open access: yesEnergy and Built Environment, 2022
Polystyrene (PS) is rich in plastic materials, but it produces a large amount of waste every year, causing a huge burden on the environment. Although PS plastic is the source of a common ''white pollution'' in daily life, it still has a high utilization ...
Changhui Liu   +4 more
doaj   +1 more source

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

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

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

D-glucose hdrogenation over Ni based hypercrosslinked polysterene [PDF]

open access: yesChemical Engineering Transactions, 2017
The synthesis of highly selective catalysts for saccharides hydrogenation to sugar alcohols is of great importance in terms of increase in selectivity towards the target products and catalyst stability. In the current work catalytic D-glucose hydrogenation was studied over Ni catalysts based on hypercrosslinked polystyrene in autoclave reactor ...
Malinovsky A.   +5 more
openaire   +2 more sources

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