Recent advances of organogels: from fabrications and functions to applications

Zeng, Lewei; Lin, Xinxing; Li, Ping; Liu, Fa‐Qian; Guo, Hui; Li, Weihua

doi:10.1016/j.porgcoat.2021.106417

Cited by 67 publications

(50 citation statements)

References 258 publications

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“…Due to the possession of the pillar[5]arene cavity on the structural skeleton, P11 could form a complex with a neutral poly(ethylene glycol) (PEG) derivative with two ending subunits—alkylnitrile G4 ( Scheme 4 ) via donor–acceptor interactions. Particularly, this obtained host–guest inclusion P11 ⸧ G4 not only has the capacity for properly exfoliating and dispersing single-walled carbon nanotubes in organic solvents (600 μg mL −1 , Figure 2 ) as confirmed by 1 H NMR, Raman, UV–Vis–near-infrared (NIR) spectra, and thermogravimetric analysis (TGA), but also affords the preparation of pillar[5]arene-based polymer-carbon nanotube composite organogels [ 88 , 89 , 90 ] in 1,2-dichlorobenzene (40 wt %) via non-covalent interactions ( Figure 3 ) [ 85 ].…”

Section: Decoration Of Carbon Nanotube By Using Functional Pillar[n]a...mentioning

confidence: 99%

Pillar[n]arene-Mimicking/Assisted/Participated Carbon Nanotube Materials

Liu

et al. 2022

Materials

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The recent progress in pillar[n]arene-assisted/participated carbon nanotube hybrid materials were initially summarized and discussed. The molecular structure of pillar[n]arene could serve different roles in the fabrication of attractive carbon nanotube-based materials. Firstly, pillar[n]arene has the ability to provide the structural basis for enlarging the cylindrical pillar-like architecture by forming one-dimensional, rigid, tubular, oligomeric/polymeric structures with aromatic moieties as the linker, or forming spatially “closed”, channel-like, flexible structures by perfunctionalizing with peptides and with intramolecular hydrogen bonding. Interestingly, such pillar[n]arene-based carbon nanotube-resembling structures were used as porous materials for the adsorption and separation of gas and toxic pollutants, as well as for artificial water channels and membranes. In addition to the art of organic synthesis, self-assembly based on pillar[n]arene, such as self-assembled amphiphilic molecules, is also used to promote and control the dispersion behavior of carbon nanotubes in solution. Furthermore, functionalized pillar[n]arene derivatives integrated carbon nanotubes to prepare advanced hybrid materials through supramolecular interactions, which could also incorporate various compositions such as Ag and Au nanoparticles for catalysis and sensing.

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Section: Decoration Of Carbon Nanotube By Using Functional Pillar[n]a...mentioning

confidence: 99%

Pillar[n]arene-Mimicking/Assisted/Participated Carbon Nanotube Materials

Liu

et al. 2022

Materials

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“…The most dominating choices to generate supramolecular cross-linking are hydrogen bonding, 15 electrostatic interactions, 16 π interactions, 17 and host−guest mechanisms. 18,19 Macroscale cross-linked porous polymer networks can be classified by the nature of polymer chains in a way that a library of materials based on aqueous-air nature (i.e., hydrogels, 20,21 aerogels 22 ), organic nature (i.e., resins, 23 organogels 24 ), and silicon-based nature (i.e., (polydimethylsiloxane)s 25 ) exist. The porosity of aforementioned networks is identified via "swelling" and "solvent uptake" parameters.…”

Section: ■ Introductionmentioning

confidence: 99%

Photocatalyst-Incorporated Cross-Linked Porous Polymer Networks

Esen

Kumru

2022

Ind. Eng. Chem. Res.

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The utilization of sunlight to conduct chemistry has been on a stark rise in the era of sustainability. A similar trend is observed in polymer science, mainly to initiate polymerization and modify polymer materials, but mostly relying on the utilization of soluble initiator/activator molecules. Semiconductors, on the other hand, grant a platform for "photoredox" induced chemical pathways, so that reductive and oxidative reactions (as well as radical formation) can be tailored according to band positions. Despite their utilization as dispersed or dissolved phases, immobilization of semiconductors on macroscale solid surfaces is attractive to entail scale-up options. In this Review, semiconductors incorporated in cross-linked porous polymer networks will be summarized both from synthesis and application perspectives.

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“…Consequently, the development of materials with fouling-resistant properties that could eliminate the issue resulting from marine biofouling is feasible and urgently needed. Recently, many anti-fouling strategies of utilizing coating materials to prevent protein, cell, and fouling organism adhesion have been proposed, including (super)hydrophobic materials [ 3 , 4 ], bio-inspired antiadhesive micro/nanostructures [ 5 , 6 ], siloxane/fluorocarbon-based fouling release coatings [ 1 , 7 ], amphiphilic coatings [ 8 , 9 ], and polymer gels [ 10 , 11 , 12 , 13 , 14 ]. In particular, hydrogels, a soft and wet polymeric material, are significantly different from the dry and hard solid surfaces, which play crucial roles in the anti-fouling property due to the potential super wettability and surface lubricity [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Anti-Fouling Performance of Hydrophobic Hydrogels with Unique Surface Hydrophobicity and Nanoarchitectonics

Zeng

Liu

Huang

et al. 2022

Gels

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Hydrogel is a kind of soft and wet matter, which demonstrates favorable fouling resistance owing to the hydration anti-adhesive surfaces. Different from conventional hydrogels constructed by hydrophilic or amphiphilic polymers, the recently invented “hydrophobic hydrogels” composed of hydrophobic polymers exhibit many unique properties, e.g., surface hydrophobicity and high water content, suggesting promising applications in anti-fouling. In this paper, a series of hydrophobic hydrogels were prepared with different chemical structures and water content for anti-fouling investigations. The hydrophobic hydrogels showed high static water contact angles (WCAs > 90°), indicating remarkable surface hydrophobicity, which is abnormal for conventional hydrogels. Compared with the conventional hydrogels, all the hydrophobic hydrogels exhibited less than 4% E. coli biofilm coverage, showing a contrary trend of anti-fouling ability to the water content inside the polymer. Typically, the poly(2-(2-ethoxyethoxy)ethyl acrylate) (PCBA) and poly(tetrahydrofurfuryl acrylate) (PTHFA) hydrogels with relatively high surface hydrophobicity showed as low as 5.1% and 2.4% E. coli biofilm coverage even after incubation for 7 days in bacteria suspension, which are about 0.32 and 0.15 times of that on the hydrophilic poly(N,N-dimethylacrylamide) (PDMA) hydrogels, respectively. Moreover, the hydrophobic hydrogels exhibited a similar anti-adhesion ability and trend to algae S. platensis. Based on the results, the surface hydrophobicity mainly contributes to the excellent anti-fouling ability of hydrophobic hydrogels. In the meantime, the too-high water content may be somehow detrimental to anti-fouling performance.

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Recent advances of organogels: from fabrications and functions to applications

Cited by 67 publications

References 258 publications

Pillar[n]arene-Mimicking/Assisted/Participated Carbon Nanotube Materials

Pillar[n]arene-Mimicking/Assisted/Participated Carbon Nanotube Materials

Photocatalyst-Incorporated Cross-Linked Porous Polymer Networks

Anti-Fouling Performance of Hydrophobic Hydrogels with Unique Surface Hydrophobicity and Nanoarchitectonics

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