Hydrophobic poly(alkoxysilane) organogels as sorbent material for oil spill cleanup

Aydin, Gulsah Ozan; Sönmez, Hayal Bülbül

doi:10.1016/j.marpolbul.2015.05.033

Cited by 57 publications

(8 citation statements)

References 60 publications

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“…However, it limits the ability to design and control the internal structure of absorbents, which is mainly determined by the parent sponges. Therefore, various polymerization processes have been utilized to prepare novel 3D polymeric architectures, with controllable and tunable pore structures . Recently, high internal phase emulsion (HIPE) polymerization has become a popular strategy to fabricate highly porous polymeric architectures with tunable internal structures .…”

Section: Materials For Oil/water Separation Based On Absorptionmentioning

confidence: 99%

Recent Development of Advanced Materials with Special Wettability for Selective Oil/Water Separation

Cheng

Fane

et al. 2016

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The increasing number of oil spill accidents have a catastrophic impact on our aquatic environment. Recently, special wettable materials used for the oil/water separation have received significant research attention. Due to their opposing affinities towards water and oil, i.e., hydrophobic and oleophilic, or hydrophilic and oleophobic, such materials can be used to remove only one phase from the oil/water mixture, and simultaneously repel the other phase, thus achieving selective oil/water separation. Moreover, the synergistic effect between the surface chemistry and surface architecture can further promote the superwetting behavior, resulting in the improved separation efficiency. Here, recently developed materials with special wettability for selective oil/water separation are summarized and discussed. These materials can be categorized based on their oil/water separating mechanisms, i.e., filtration and absorption. In each section, representative studies will be highlighted, with emphasis on the materials wetting properties and innovative aspects. Finally, challenges and future research directions in this emerging and promising research field will be briefly described.

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Section: Materials For Oil/water Separation Based On Absorptionmentioning

confidence: 99%

Recent Development of Advanced Materials with Special Wettability for Selective Oil/Water Separation

Cheng

Fane

et al. 2016

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“…Regarding comparison of specific solvent uptake with other materials, on per weight basis, W 2 -PDCPD xerogels generally showed higher uptake of toluene and CHCl 3 than organic polymers including several photoresponsive copolymers, copolymers of cinnamoyloxy ethyl methacrylate and octadecyl acrylate, disulfide-linked polymeric networks, porous polyurea monoliths derived from toluene diisocyanate, cis -9-octadecenyl-based polymers, mesogenic polyelectrolyte gels, conjugated microporous (co)polymers, polymethylsilsesquioxanes, and poly(alkoxysilanes) . (For a more detailed comparison of W 2 -PDCPD xerogels with those classes of polymers, see page S21 in the Supporting Information.…”

Section: Resultsmentioning

confidence: 99%

“…Although in recent years, the focus has been mainly on destructive removal of chlorinated solvents, nondestructive physicochemical methods are still employed because of their reliability and, sometimes, the recovery of the pollutants . The materials that have been used to absorb solvents include graphene − and other carbon-based materials, ,, organic polymers, − polyelectrolytes, , polymethylsilsesquioxanes, poly(alkoxysilanes), and sol–gel silica substrates …”

Section: Introductionmentioning

confidence: 99%

“…4 Although in recent years, the focus has been mainly on destructive removal of chlorinated solvents, nondestructive physicochemical methods are still employed because of their reliability and, sometimes, the recovery of the pollutants. 5 The materials that have been used to absorb solvents include graphene 6−9 and other carbon-based materials, 6,10,11 organic polymers, 12−21 polyelectrolytes, 22,23 polymethylsilsesquioxanes, 24 poly(alkoxysilanes), 25 and sol−gel silica substrates. 26 Dearomatization of oil is also of great importance, 27 both because of the hazardous effects of aromatic compounds toward the environment and human health 28 and also their role as inhibitors in the desulfurization of oil.…”

Section: Introductionmentioning

confidence: 99%

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An Extreme Case of Swelling of Mostly cis-Polydicyclopentadiene by Selective Solvent Absorption—Application in Decontamination and Environmental Remediation

Chriti

Raptopoulos

Anyfantis

et al. 2019

ACS Appl. Polym. Mater.

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Polydicyclopentadiene (PDCPD) xerogels (W 2 -PDCPD) consisting of mostly cis-polymer were prepared using a catalytic system based on the ditungsten cluster Na[W2(μ-Cl)3Cl4(THF)2]·(THF)3 (W 2 , {WW}6+, a′2e′4). W 2 -PDCPD xerogels have shown extreme swelling in various organic solvents, mainly aromatic, chlorinated, and brominated hydrocarbons. For instance, in toluene or in chloroform, the volume of the swollen gels exceeds by more than 100 or 50 times the volume of the parent xerogel, respectively. Because of that extreme swelling, the volume of material required for the uptake of a given volume of solvent is very small (1/100 or even less versus other absorbents reported in the literature including organic polymers or carbon-based materials). In addition, the competitiveness of the technology for preparing W 2 -PDCPD xerogels (i.e., inexpensive starting materials and catalyst, room temperature reaction, ambient drying) renders those xerogels superior materials in terms of solvent uptake. Their swelling behavior was studied with the Hansen solubility parameters (HSP) theory and the Flory theory, each of which provided valuable insight into the swelling mechanism and the parameters that affected it. On the basis of 44 different aliphatic and aromatic organic solvents, a correlation was made between the swelling behavior of the xerogels in each solvent and the solvent HSP, leading to an estimation of the HSP of mostly-cis PDCPD and, subsequently, to the calculation of the Flory–Huggins parameter χ12. On the basis of our findings, W 2 -PDCPD xerogels were used to separate organic solvents from water.

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“…When oil leaks into water or other parts of the environment, it spreads quickly, negatively affecting living creatures and our habitat . To clean such oil and organic solvent pollutions from water surfaces and the environment, a wide range of synthetic and inorganic materials are used, including perlite, clay, diatomite, calcium carbonate powder, and zeolite for inorganic materials and polydimethylsiloxane (PDMS)‐coated cotton; carbon nanotube sponges; polyester sorbents; poly(propylene glycol)‐based sorbents; poly(ethylene glycol) gels; cyclodextrin‐based polymers; silica aerogels; polypropylene sorbents; tetraethyl orthosilicate (TEOS)‐based sorbents; crosslinked methacrylate materials; tetraethylorthocarbonate‐based crosslinked polymers; alkoxysilane‐based organogels; polytetrahydrofuran (PTHF) sorbents; and alkyl and aromatic bridged polysilsesquioxanes …”

Section: Introductionmentioning

confidence: 99%

Preparation of biphenyl‐bridged, crosslinked polyalkoxysilanes: Determination of oil/organic solvent absorption features

Kizil

Sönmez

2016

J of Applied Polymer Sci

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A novel type of biphenyl-bridged alkoxysilane-based crosslinked polyalkoxysilane was prepared by the condensation of 4,4 0 -bis(triethoxysilyl)21,1 0 -biphenyl and different lengths of linear aliphatic diols. Fourier transform infrared spectroscopy, solid-state 13 C and 29 Si cross-polarization magic angle spinning nuclear magnetic resonance, and thermogravimetric analysis were used to characterize the biphenyl-bridged, crosslinked polyalkoxysilanes. The crosslinked polymers were found to have very quick and high swelling capabilities in organic solvents and oils. The absorption-desorption kinetics and reusability features of the crosslinked polymers were also studied, and we found that the synthesized polymers reached their maximum absorption capacity during a variety of tests without losing capacity. We also tested the absorption performance of the sorbents from water surfaces. All of these results confirm that biphenyl-bridged, crosslinked polyalkoxysilanes could be good candidates as sorbent materials for the cleaning of water from organic contaminants.

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Hydrophobic poly(alkoxysilane) organogels as sorbent material for oil spill cleanup

Cited by 57 publications

References 60 publications

Recent Development of Advanced Materials with Special Wettability for Selective Oil/Water Separation

Recent Development of Advanced Materials with Special Wettability for Selective Oil/Water Separation

An Extreme Case of Swelling of Mostly cis-Polydicyclopentadiene by Selective Solvent Absorption—Application in Decontamination and Environmental Remediation

Preparation of biphenyl‐bridged, crosslinked polyalkoxysilanes: Determination of oil/organic solvent absorption features

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