A new approach to the preparation of large surface area poly(styrene-co-divinylbenzene) monoliths via knitting of loose chains using external crosslinkers and application of these monolithic columns for separation of small molecules

Maya, Fernando; Švec, František

doi:10.1016/j.polymer.2013.08.018

Cited by 89 publications

(59 citation statements)

References 40 publications

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“…The FriedeleCrafts alkylation reaction catalyzed by ferric chloride is known to form a large number of mesopores and leads to a significant increase in the surface area. Hypercrosslinking of the monoliths containing chloromethylstyrene units was introduced for monolithic capillary columns only recently (Maya and Svec, 2014;Skeríková and Urban, 2013;Urban et al, 2010a,b;Urban and Skeríková, 2014) and so has not been used previously for thin layers. In contrast to the original plate, a hypercrosslinked layer was able to separate even small molecules such as dyes .…”

Section: Monolithic Layers For Tlcems 165mentioning

confidence: 99%

Theory and Practice of UHPLC and UHPLC–MS

Guillarme

Veuthey

2017

Handbook of Advanced Chromatography /Mass Spectrometry Techniques

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Section: Monolithic Layers For Tlcems 165mentioning

confidence: 99%

Theory and Practice of UHPLC and UHPLC–MS

Guillarme

Veuthey

2017

Handbook of Advanced Chromatography /Mass Spectrometry Techniques

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“…Yet another possibility is to simplify the composition of the polymerization mixture and hypercross‐link the surface of the poly(styrene‐ co ‐divinylbenzene) polymer by knitting of the swollen polymer chains using an external cross‐linker . 4,4′‐Bis(chloromethyl)‐1,1′‐biphenyl produced monoliths with the highest increase in the surface area and best chromatographic properties when compared to α,α′‐dichloro‐ p ‐xylene and formaldehyde dimethyl acetal cross‐linkers.…”

Section: Polymer Monoliths For Separation Of Small Moleculesmentioning

confidence: 99%

Current trends in the development of porous polymer monoliths for the separation of small molecules

Urban

2015

J of Separation Science

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Since their introduction, the main application area of porous polymer monoliths has been in the fast gradient separation of synthetic and natural polymers. On the other hand, it has proven to be difficult to prepare polymer monoliths providing column efficiency comparable with particulate and monolithic silica-based stationary phases. During this decade, several experimental approaches were performed that aimed to improve this property of polymer monoliths. These protocols include variation in a polymerization time and preparation of monolithic stationary phases at limited conversion of the polymerization reaction, application of novel, highly ordered, nanomaterials, and/or hypercross-linking surface modification controlling the cross-link density of prepared monoliths. By using some of these approaches, monolithic stationary phases with column efficiency reaching 200,000 plates/m for low-molecular-weight compounds have been prepared. This review deals with preparation of polymer monoliths for the separation of small molecules and summarizes recent development in this field. At first, it focuses on monolithic columns morphology and repeatability of their preparation. Then, recent results in individual experimental protocols are discussed. Finally, possible future steps leading to the preparation of more efficient monolithic stationary phases are outlined.

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“…但是, 对于微观形貌可控的超交联聚合物的报道还比较少, 例如纳米颗粒 [69,70] 、中空微囊 [71,72] 、二维聚合物膜 [73,74] 、整块材料 [44,75] Figure 9 The preparation of magnetic microporous polymer nanoparticles [69] 图 10 微孔聚合物中空微囊的制备 [71] Figure 10 The preparation of hollow microporous organic capsules [71] Figure 11 (a) The synthesis of hypercrosslinked microporous polystyrene membranes, (b) the mechanism for the formation of hierarchical porous structure [74] 大 900 m …”

Section: Figurementioning

confidence: 99%

Research Progress in Hypercrosslinked Microporous Organic Polymers

Tan¹,

Tan²

2015

Acta Chim. Sinica

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Hypercrosslinked microporous polymers are currently an important class of porous polymer materials and receiving great interest due to their advantages such as high surface area, moderate synthetic conditions and diverse building blocks. According to the difference between the synthetic methods, hypercrosslinked polymers are mainly prepared by the following three strategies: polymer precursor post-crosslinking, one-step self-polycondensation of multifunctional monomers and external crosslinker knitting rigid aromatic compounds. In this review, we introduce the development of hypercrosslinked polymer in detail as well as investigate various synthetic methods and polymer networks with controlled micro-morphology, the broad practical and potential applications including gas storage, adsorption, separation and heterogeneous catalysis were also discussed. In the end, we talk about the disadvantage of hypercrosslinked polymers and challenges in the future as well as predict the further development on synthesis and application.

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A new approach to the preparation of large surface area poly(styrene-co-divinylbenzene) monoliths via knitting of loose chains using external crosslinkers and application of these monolithic columns for separation of small molecules

Cited by 89 publications

References 40 publications

Theory and Practice of UHPLC and UHPLC–MS

Theory and Practice of UHPLC and UHPLC–MS

Current trends in the development of porous polymer monoliths for the separation of small molecules

Research Progress in Hypercrosslinked Microporous Organic Polymers

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