β-Cyclodextrin-Derived Monolithic, Hierarchically Porous Polyimides Designed for Versatile Molecular Separation Applications

Leonhardt, Eric E.; Meador, Mary Ann B.; Wooley, Karen L.

doi:10.1021/acs.chemmater.8b02843

Cited by 19 publications

(17 citation statements)

References 48 publications

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“…Wooley and co-workers crosslinked peraminated β-CD molecules with pyromellitic dianhydride to form a gel, which could be cast on a PVDF microfiltration support. 150 The gel layer thickness was around 20 m, had a hierarchical porosity, leading to a high adsorption capability for rhodamine B. High permeances for water (6.5 L m −2 h −1 bar -1 ) and methanol (8.8 L m −2 h −1 bar -1 ) were also observed.…”

Section: Crosslinkingmentioning

confidence: 93%

“…Besides fibrous membranes, macrocycle-based mixed-matrix and crosslinked macrocycle membranes were also applied for micropollutants adsorption from water. 149,150,155,[198][199][200] For example, macroporous membranes based on blends of polymerized βcyclodextrin and PVDF have been recently fabricated. 200 Filtration adsorption results demonstrated that the optimized polymerized β-CD membrane almost completely sequestered bisphenol A with high concentration (50 mg L −1 ) and high water flux (3000 L m −2 h −1 ), orders of magnitude higher than that of commercial nanofiltration membranes with similar separation performance.…”

Section: Water Treatmentmentioning

confidence: 99%

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Engineering membranes with macrocycles for precise molecular separations

et al. 2021

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Section: Crosslinkingmentioning

confidence: 93%

Section: Water Treatmentmentioning

confidence: 99%

Engineering membranes with macrocycles for precise molecular separations

et al. 2021

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“…介孔和大孔, 对有机分子吸附能力强, 在环境修复方面具有潜在的应用价值 [67] . Wooley 等 [68] 采用氨基功能化的 β-环糊精衍生物为单体, 以均苯二甲酸酐为交联剂, 通过交联和化学脱水等步骤, 最后超临界干燥得到环糊精-聚酰亚胺聚合物气凝胶, 该环糊精聚合物也具有多级孔结构, 比表面积达 155 m 2 /g, 但无力学性能的报道.…”

Section: 环糊精交联聚合物(Crosslinked Cdp)unclassified

“…CDP 在催化中的应用主要体现在其催化剂的负载上, 如 Peinemann 等 [85] CDP 在隔热保温中的应用主要体现在 PR 气凝胶和 CD 气凝胶的成功制备上, 气凝胶是一类纳米多孔材料, 其孔隙率高达 99%以上, 比表面积巨大, 热导率极低, 是一种密度极低、隔热性能极佳的固体材料 [86～91] . PR 气凝胶于 2015 年被首次报道 [47] , [48] , CD 气凝胶 [67,68] , 以及有机无机杂化气凝胶等 [92～96] . 例如, Ito 等 [92] [96] .…”

Section: 环糊精聚合在生物医学中的应用unclassified

Advances in Cyclodextrin Polymers and Their Applications in Biomedicine

Qie¹,

Hao²,

Liu³

et al. 2020

Acta Chim. Sinica

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Cyclodextrins (CDs) are a family of macrocyclic oligosaccharides composed of α-1,4-linked D-glucopyranose units. The most commonly used CDs are α-, β-, and γ-CD, which consist of 6, 7, and 8 D-glucose units, respectively. They possess a relative hydrophobic inner cavity and a hydrophilic outer surface and can form inclusion complexes with various small molecules, metal ions and polymers, tailoring the physicochemical property of the guests, and thus have been widely used in the fields of pharmacy, food, chemistry, chromatography, catalysis, biotechnology, agriculture, cosmetics, hygiene, medicine, textiles and the environment, etc. However, it is difficult to manipulate the native CDs in some specific applications, they are crystallized solid and soluble in water but insoluble in most organic solvents. CD polymers (CDPs), such as crosslinked CDs or CD based hydrogels with various crosslinkers by chemical reactions, and CD based supramolecular polymers formed by physical interactions, can achieve the integration effect and synergy effect of CDs, crosslinkers and guest polymers, not only possessing the inclusion capacity of CDs, but also endowing CDs with other properties introduced by crosslinkers. The CDPs can be easily manipulated and they exhibit unique features that native CDs are lack of. Hence, the design, synthesis and applications of CDPs have attracted broad interests in recent years. This review focuses on the recent progress in CDPs, and different types of CDPs are identified and classified based on the structures and functions, namely CD based polyrotaxane, grafted CDs, crosslinked CDs and linear CDs, etc. Besides, the synthetic methodologies of CDPs are highlighted. Particular attention is paid to the breakthrough on the CDPs in the past five years, and their applications in biomedicine, such as drug delivery, gene delivery, target delivery, controlled release and cell imaging are discussed in detail. The typical applications in other fields such as absorption, environment remediation, thermal insulation, catalysis and slid-ring gels are also discussed in brief. Finally, the review provides brief summary and prospect of CDPs. Keywords cyclodextrin; polymer; chemical crosslinking; drug carrier; supramolecular self-assembly 1 引言环糊精(cyclodextrin, 简称 CD)是一类由吡喃葡萄糖单元通过 α-1,4-糖苷键链接而成的大环分子, 具有疏水空腔和亲水外壁的中空圆台状立体结构, 能够通过包结作用(encapsulation)与多种小分子和聚合物形成主-客体(host-guest)包结物(inclusion complexes), 从而实现对客体分子物理和化学性能的调控, 被广泛用于制药、食

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“…Since the first examples of synthetic polymer aerogels reported by Pekala and co-workers [ 1 , 2 , 3 ], many types of polymer aerogels have been synthetized by changing the sol-gel process and the polymer backbone [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 ]. Due to the combination of low cost, simple production processes, and straight-forward tailoring of the physicochemical and functional properties [ 13 , 14 , 15 ], polymer aerogels continue to attract significant attention from academic and industrial communities for a diverse range of uses within the scope of a broad technological platform [ 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Nanoporous Crystalline Composite Aerogels with Reduced Graphene Oxide

et al. 2020

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High-porosity monolithic composite aerogels of syndiotactic polystyrene (sPS) and poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) containing reduced graphene oxide (r-GO) were prepared and characterized. The composite aerogels obtained by supercritical carbon dioxide (scCO2) extraction of sPS/r-GO and PPO/r-GO gels were characterized by a fibrillar morphology, which ensured good handling properties. The polymer nanoporous crystalline phases obtained within the aerogels led to high surface areas with values up to 440 m2 g−1. The role of r-GO in aerogels was studied in terms of catalytic activity by exploring the oxidation capacity of composite PPO and sPS aerogels toward benzyl alcohol in diluted aqueous solutions. The results showed that, unlike sPS/r-GO aerogels, PPO/r-GO aerogels were capable of absorbing benzyl alcohol from the diluted solutions, and that oxidation of c.a. 50% of the sorbed benzyl alcohol molecules into benzoic acid occurred.

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β-Cyclodextrin-Derived Monolithic, Hierarchically Porous Polyimides Designed for Versatile Molecular Separation Applications

Cited by 19 publications

References 48 publications

Engineering membranes with macrocycles for precise molecular separations

Engineering membranes with macrocycles for precise molecular separations

Advances in Cyclodextrin Polymers and Their Applications in Biomedicine

Nanoporous Crystalline Composite Aerogels with Reduced Graphene Oxide

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