Hypercrosslinked polystyrene: A polymer in a non-classical physical state

Пастухов, А. В.; Tsyurupa, M. P.; Davankov, V. A.

doi:10.1002/(sici)1099-0488(19990901)37:17<2324::aid-polb4>3.0.co;2-b

Cited by 64 publications

(108 citation statements)

References 8 publications

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“…HCPs represent a family of robust microporous organic materials that can exhibit high surface areas 37-39, 41, 48, 49 . Unlike solution-processable PIMs, the permanent porosity in hypercrosslinked materials is a result of extensive crosslinking reactions which prevent the polymer chains from collapsing into a dense, non-porous state 50,51 .…”

Section: Introductionmentioning

confidence: 99%

Hypercrosslinked organic polymer networks as potential adsorbents for pre-combustion CO2 capture

Martín

Stöckel

Clowes³

et al. 2011

J. Mater. Chem.

307

225

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Hypercrosslinked polymers (HCPs) synthesized by copolymerisation of pdichloroxylene (p-DCX) and 4-4′-bis (chloromethyl)-1-1′-biphenyl (BCMBP) constitute a family of low density porous materials with excellent textural development. Such polymers show microporosity and mesoporosity and exhibit Brunauer-Emmett-Teller (BET) surface areas of up to 1970 m 2 g-1. The CO 2 adsorption capacity of these polymers was evaluated using a thermogravimetric analyser (atmospheric pressure tests) and a high-pressure magnetic suspension balance (high pressure tests). CO 2 capture capacities were related to the textural properties of the HCPs. The performance of these materials to adsorb CO 2 at atmospheric pressure was characterized by maximum CO 2 uptakes of 1.7 mmol g-1 (7.4 wt %) at 298 K. At higher pressures (30 bar), the polymers show CO 2 uptakes of up to 13.4 mmol g-1 (59 wt %), superior to zeolite-based materials (zeolite 13X, zeolite NaX) and commercial activated carbons (BPL, Norit R). In addition, these polymers showed low isosteric heats of CO 2 adsorption and good selectivity towards CO 2. Hypercrosslinked polymers have potential to be applied as CO 2 adsorbents in pre-combustion capture processes where high CO 2 partial pressures are involved.

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Section: Introductionmentioning

confidence: 99%

Hypercrosslinked organic polymer networks as potential adsorbents for pre-combustion CO2 capture

Martín

Stöckel

Clowes³

et al. 2011

J. Mater. Chem.

307

225

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“…The technique can increase surface areas and has mostly been used to prepare poly (styrene-divinylbenzene). Increasing the surface area of a column will help to improve the performance for separating small molecules [64] .…”

Section: Modified Polymer Monolithsmentioning

confidence: 99%

Advancements in the preparation of high-performance liquid chromatographic organic polymer monoliths for the separation of small-molecule drugs

Ding

Yang

Dong

2018

Journal of Pharmaceutical Analysis

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The various advantages of organic polymer monoliths, including relatively simple preparation processes, abundant monomer availability, and a wide application range of pH, have attracted the attention of chromatographers. Organic polymer monoliths prepared by traditional methods only have macropores and mesopores, and micropores of less than 50 nm are not commonly available. These typical monoliths are suitable for the separation of biological macromolecules such as proteins and nucleic acids, but their ability to separate small molecular compounds is poor. In recent years, researchers have successfully modified polymer monoliths to achieve uniform compact pore structures. In particular, microporous materials with pores of 50 nm or less that can provide a large enough surface area are the key to the separation of small molecules. In this review, preparation methods of polymer monoliths for high-performance liquid chromatography, including ultra-high cross-linking technology, post-surface modification, and the addition of nanomaterials, are discussed. Modified monolithic columns have been used successfully to separate small molecules with obvious improvements in column efficiency.

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“…However, to the best of our knowledge, only a few studies have been carried out on how the cross-linking reagents take effect over the pore structures and then further affect the VOCs adsorption properties of the hyper-cross-linked polymers. 10,20 In this research, we successfully synthesized a series of hyper-cross-linked polymers from a low-cross-linked polydivinylbenzene (PDVB) by a post-cross-linking procedure with 4,4 0 -bis(chloromethyl)biphenyl (BCMBP) as cross-linking reagent and ferric chloride as catalyst. During the synthesis process, various amounts of BCMBP were used and the effects of them on the pore structure and morphology were discussed.…”

Section: 1718mentioning

confidence: 99%

Adsorption properties of benzene and water vapor on hyper-cross-linked polymers

et al. 2013

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A series of hyper-cross-linked polymers (HCPs) was synthesized via a post-cross-linking reaction using lowcross-linked polydivinylbenzene (PDVB) as precursor and 4,4 0 -bis(chloromethyl)biphenyl (BCMBP) as crosslinking reagent. The effects of various amounts of BCMBP on the structures of the hyper-cross-linked polymers were discussed. The resultant typical HCP-1.3 possesses hierarchical micro/meso pore structures and a high stability up to 400 C. The increased specific surface area and total pore volume of HCP-1.3, which reach 1231 m 2 g À1 and 1.99 cm 3 g À1 , respectively, imply the high cross-linking ability of BCMBP.In order to study the adsorption properties of HCP-1.3, benzene and water were selected as typical adsorbates for their non-polar and polar characteristics. The static adsorption amount of benzene on HCP-1.3 is 30.0 mmol g À1, which is two times higher than the corresponding adsorbed water amount, suggesting a potential hydrophobic property of HCP-1.3. Dynamic adsorption was performed with a fixed-bed column to simulate the real situation under dry and 30% relative humidity conditions. The results show the dynamic adsorption amount under the 30% relative humidity condition is as high as 90% of the value under dry conditions, implying HCP-1.3 would be a promising adsorbent for VOC adsorption under both dry and humid conditions.

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Hypercrosslinked polystyrene: A polymer in a non-classical physical state

Cited by 64 publications

References 8 publications

Hypercrosslinked organic polymer networks as potential adsorbents for pre-combustion CO2 capture

Hypercrosslinked organic polymer networks as potential adsorbents for pre-combustion CO2 capture

Advancements in the preparation of high-performance liquid chromatographic organic polymer monoliths for the separation of small-molecule drugs

Adsorption properties of benzene and water vapor on hyper-cross-linked polymers

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