Results 21 to 30 of about 140,788 (293)

Enhanced surface interaction of water confined in hierarchical porous polymers induced by hydrogen bonding [PDF]

open access: yes, 2016
Hierarchical porous polymer systems are increasingly applied to catalysis, bioengineering, or separation technology because of the versatility provided by the connection of mesopores with percolating macroporous structures.
Acosta, Rodolfo Hector   +7 more
core   +2 more sources

Dynamic Covalent Synthesis of Crystalline Porous Graphitic Frameworks [PDF]

open access: yes, 2020
Porous graphitic framework (PGF) is a two-dimensional (2D) material that has emerging energy applications. An archetype contains stacked 2D layers, the structure of which features a fully annulated aromatic skeleton with embedded heteroatoms and periodic
Cai, S   +18 more
core   +2 more sources

Creating high-affinity binding sites for efficient CO2 and iodine vapor uptake through direct synthesis of novel triazine-based covalent organic polymers

open access: yesJournal of Materials Research and Technology, 2023
Two types of triazine-based covalent organic polymers were successfully constructed through a one-pot and catalyst-free polycondensation approach.
Shaohui Xiong   +8 more
doaj   +1 more source

Thiazolothiazole-linked porous organic polymers

open access: yesChem. Commun., 2014
Thiazolothiazole-linked porous organic polymers have been synthesized from a facile catalyst-free condensation reaction between aldehydes and dithiooxamide under solvothermal conditions. The resultant porous frameworks exhibit a highly selective uptake of CO2 over N2 under ambient conditions.
Zhu, X.   +10 more
openaire   +4 more sources

Flexibility in metal–organic frameworks : a basic understanding [PDF]

open access: yes, 2019
Much has been written about the fundamental aspects of the metal-organic frameworks (MOFs). Still, details concerning the MOFs with structural flexibility are not comprehensively understood.
Aljammal, Nour   +4 more
core   +1 more source

Highly permeable macroporous polymers synthesized from pickering medium and high internal phase emulsion templates [PDF]

open access: yes, 2010
Open porous poly-Plckerlng-M/HIPEs with permeabilities of up to 2.6 D were prepared by polymerisation of PickeringM/HIPEs to which small amounts of surfactant were added.
Akartuna   +25 more
core   +1 more source

Alkyl‐Linked Porphyrin Porous Polymers for Gas Capture and Precious Metal Adsorption

open access: yesSmall Science, 2021
In gas adsorption and metal recovery, inexpensive and covalently bonded porous polymers offer industrial feasibility, despite the challenge of having reactive functionalities while maintaining porosity.
Yeongran Hong   +2 more
doaj   +1 more source

Compositions and medical devices for controlled release of nitric oxide and methods of production thereof [PDF]

open access: yes, 2015
The present disclosure describes compositions providing for controlled release of nitric oxide (NO) and methods for production of these compositions. In some embodiments, the compositions may include a biodegradable polymer and a nitric oxide-releasing ...
Balkus, Kenneth J., Jr., Liu, Harvey A.
core   +1 more source

Development of covalent triazine frameworks as heterogeneous catalytic supports [PDF]

open access: yes, 2019
Covalent triazine frameworks (CTFs) are established as an emerging class of porous organic polymers with remarkable features such as large surface area and permanent porosity, high thermal and chemical stability, and convenient functionalization that ...
Krishnaraj, Chidharth   +3 more
core   +1 more source

Mechanochemical synthesis of pillar[5]quinone derived multi-microporous organic polymers for radioactive organic iodide capture and storage

open access: yesNature Communications, 2020
Incorporation of supramolecular macrocycles into porous organic polymers can increase uptake of guest molecules through host−guest interactions. Here the authors report a pillar[5]quinone derived multi-microporous organic polymer, which show a superior ...
Kecheng Jie   +10 more
doaj   +1 more source

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