Surface modification on a hyper-cross-linked polymeric adsorbent by multiple phenolic hydroxyl groups to be used as a specific adsorbent for adsorptive removal of p-nitroaniline from aqueous solution

He, Chaohui; Huang, Kelong; Huang, Jianhan

doi:10.1016/j.jcis.2009.10.026

Cited by 36 publications

(8 citation statements)

References 30 publications

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“…This leads to enhanced absorption performances for our materials in comparison with literature reports on polystyrenes [51–53]. Moreover, the preparation of our materials, unlike hyper-crosslinked polystyrenes [48–49], requires the use of no porogen additive.…”

Section: Resultsmentioning

confidence: 70%

Hyper-reticulated calixarene polymers: a new example of entirely synthetic nanosponge materials

Spinella¹,

Russo²,

Vincenzo³

et al. 2018

Beilstein J. Org. Chem.

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New calixarene-based nanosponges (CaNSs), i.e., hyper-reticulated polymers constituted by calixarene monomer units joined by means of bis(1,2,3-trialzolyl)alkyl linkers, were synthesized, characterized and subjected to preliminary tests to assess their supramolecular absorption abilities towards a set of suitable organic guests, selected as pollutant models. The synthesis was accomplished by means of a CuAAC reaction between a tetrakis(propargyloxy)calix[4]arene and an alkyl diazide. The formation of the polymeric network was assessed by means of FTIR and 13C{1H} CP-MAS solid-state NMR techniques, whereas morphological characterization was provided by SEM microghaphy. The materials were proved to possess pH-dependent sequestration abilities, due to the presence of the weakly basic triazole linkers. Sequestration efficiency indeed depends on the effective occurrence of both electrostatic and hydrophobic interactions between the guest and the polymer lattice. Thus, our CaNS nanosponges can be considered as a new class of purely synthetic smart absorbent materials.

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Section: Resultsmentioning

confidence: 70%

Hyper-reticulated calixarene polymers: a new example of entirely synthetic nanosponge materials

Spinella¹,

Russo²,

Vincenzo³

et al. 2018

Beilstein J. Org. Chem.

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“…Thus this has simulated research into specialty absorbents using synthetic resins that may facilitate a cheap and effective chemical regeneration process. If chemical modification of the polymeric adsorbents can be performed by introducing some special functional groups onto their skeleton, the obtained polymeric adsorbents will achieve a large adsorption capacity and high adsorption selectivity for some special organic compounds and their potential application in many fields such as wastewater treatment 8–11…”

Section: Introductionmentioning

confidence: 99%

Collagen antibody–induced arthritis evokes persistent pain with spinal glial involvement and transient prostaglandin dependency

Baş¹,

Su²,

Sándor³

et al. 2012

Arthritis & Rheumatism

132

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Objective. Pain is one of the most debilitating symptoms reported by rheumatoid arthritis (RA) patients. While the collagen antibody-induced arthritis (CAIA) model is used for studying the effector phase of RA pathologic progression, it has not been evaluated as a model for studies of pain. Thus, this study was undertaken to examine pain-like behavior induced by anticollagen antibodies and to assess the effect of currently prescribed analgesics for RA. In addition, the involvement of spinal glia in antibody-induced pain was explored.Methods. CAIA was induced in mice by intravenous injection of a collagen antibody cocktail, followed by intraperitoneal injection of lipopolysaccharide. Disease severity was assessed by visual and histologic examination. Pain-like behavior and the antinociceptive effect of diclofenac, buprenorphine, gabapentin, pentoxifylline, and JNK-interacting protein 1 were examined in mechanical stimulation experiments. Spinal astrocyte and microglia reactivity were investigated by real-time polymerase chain reaction and immunohistochemistry.Results. Following the induction of CAIA, mice developed transient joint inflammation. In contrast, pain-like behavior was observed prior to, and outlasted, the visual signs of arthritis. Whereas gabapentin and buprenorphine attenuated mechanical hypersensitivity during both the inflammatory and postinflammatory phases of arthritis, diclofenac was antinociceptive only during the inflammatory phase. Spinal astrocytes and microglia displayed time-dependent signs of activation, and inhibition of glial activity reversed CAIA-induced mechanical hypersensitivity.Conclusion. CAIA represents a multifaceted model for studies exploring the mechanisms of pain induced by inflammation in the articular joint. Our findings of a time-dependent prostaglandin and spinal glial contribution to antibody-induced pain highlight the importance of using appropriate disease models to assess joint-related pain.

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“…According to the pore size effect, when the pore size of the adsorbent is 2-6 times larger than the molecular size of the adsorbate, optimal adsorption interaction occurs. 5,51…”

Section: Condition Optimization Of Crosslinked Resinmentioning

confidence: 99%

A newly synthesized N,O group modified hypercrosslinked resin with effective uptake towards polyphenols from aqueous media: behavior and mechanism

Sun

Wang

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND A series of hypercrosslinked resins were synthesized by controlling the reaction conditions of the Friedel–Crafts reaction of chloromethylated polystyrene‐co‐divinylbenzene (St‐DVB‐Cl), which realized reasonable adjustment of pore structure, surface area and other physical properties. Based on this, a new N,O modified hypercrosslinked resin (St‐DVB‐NB‐AC2O) was successfully prepared by the innovative nitration system, and the adsorption behavior of St‐DVB‐NB‐AC2O was studied under different conditions. The adsorption mechanism between adsorbent and adsorbate was explained by frontier orbital theory and density functional theory. RESULTS The adsorption capacity of polyphenols on the optimal hypercrosslinked resin (St‐DVB‐NB‐5) was 16.67% higher than that of the optimal commercial resin NDA150. Compared with St‐DVB‐NB‐5, the adsorption increment of hydroxyphenol on St‐DVB‐NB‐AC2O was 31.42%, which was 1.51–8.36 times higher than commercial materials. The Freundlich model was the most suitable for fitting the equilibrium data. However, the pseudo‐first‐/second‐order rate equation was more appropriate for characterizing the kinetic data, suggesting that the adsorption process might be concerned with a physical reaction. CONCLUSION The fundamental reason for the large adsorption capacity and fast adsorption rate of St‐DVB‐NB‐AC2O is its strong physical structure and chemical surface properties, which provided improved guidance for the harmless and resource‐based treatment of phenolic wastewaters. © 2018 Society of Chemical Industry

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Surface modification on a hyper-cross-linked polymeric adsorbent by multiple phenolic hydroxyl groups to be used as a specific adsorbent for adsorptive removal of p-nitroaniline from aqueous solution

Cited by 36 publications

References 30 publications

Hyper-reticulated calixarene polymers: a new example of entirely synthetic nanosponge materials

Hyper-reticulated calixarene polymers: a new example of entirely synthetic nanosponge materials

Collagen antibody–induced arthritis evokes persistent pain with spinal glial involvement and transient prostaglandin dependency

A newly synthesized N,O group modified hypercrosslinked resin with effective uptake towards polyphenols from aqueous media: behavior and mechanism

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