Synthesis and swelling properties of crosslinked poly(orthosilicate)s from cyclohexanedimethanols

Sönmez, Hayal Bülbül; Karadag, Koksal; Onaran, Gulsah

doi:10.1002/app.34259

Cited by 24 publications

(12 citation statements)

References 51 publications

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“…For other oils and solvents, the sorption capacity by volume was larger than 1, which means that the volume of the absorbed oils and solvents is larger than that of the voids in the foams. This indicates that the polymer foams are swollen by the oils and solvents, which is consistent with the previous reports . From bean oil to toluene, the sorption capacity by volume increased, indicating the easier sorption for the solvents of lower viscosities.…”

Section: Resultsmentioning

confidence: 99%

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Kinetics study of oil sorption with open‐cell polypropylene/polyolefin elastomer blend foams prepared via continuous extrusion foaming

Pang

Wang

et al. 2018

Polymers for Advanced Techs

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The objective of the present work was to study the sorption kinetics of open‐cell polypropylene/polyolefin elastomer (PP/POE) blend foams. First, open‐cell PP/POE foams of different cell structures were prepared by controlling the foaming temperature via a continuous extrusion foaming process. Second, the effect of the cell structures on the sorption process, rate, and capacity was studied. Pseudo‐first order and pseudo‐second order models were applied to study the sorption kinetics of the PP/POE foams for cyclohexane. Third, the sorption rate and sorption capacity by both volume and weight of the PP/POE foam for different oils and solvents were studied to show how the intrinsic properties of the testing oils and solvents affected the sorption performance. The results showed that the sorption with the PP/POE foams followed the pseudo‐second order kinetics model. Both the cell structures of the foams and the intrinsic properties of the testing oils and solvents affected the sorption performance. For the same testing oil, a higher open‐cell content in the foam was favorable for a higher sorption rate, and a higher void fraction was favorable for a higher sorption capacity. For the same foam, a lower viscosity of the testing oil was favorable for a higher sorption rate. The sorption capacity by volume was closely related to the viscosity of the testing oil, while both the viscosity and the density of the testing oil determined the sorption capacity by weight.

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Section: Resultsmentioning

confidence: 99%

“…This indicates that the polymer foams are swollen by the oils and solvents, which is consistent with the previous reports. 13,39 From bean oil to toluene, the sorption capacity by volume increased, indicating the easier sorption for the solvents of lower viscosities.…”

Section: Sorption Capacity By Volume and Weightmentioning

confidence: 99%

Kinetics study of oil sorption with open‐cell polypropylene/polyolefin elastomer blend foams prepared via continuous extrusion foaming

Pang

Wang

et al. 2018

Polymers for Advanced Techs

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show abstract

“…Ideal oil-sorption materials should possess the following properties: high oil/water selectivity, high oil-uptake capacity, buoyancy, a large sorption rate, excellent reusability, and low costs. 33,34 The commercial PP-based oil-sorption materials include PP nonwoven mats and PP fibrous mats, which show excellent hydrophobic and oleophilic properties. 1 Based on the published literature, 35,36 the wettability of a solid surface is determined by the surface microstructure and chemical composition.…”

Section: Hydrophobic and Oleophilic Properties Of Open-cell Pp/poe Foamsmentioning

confidence: 99%

Open‐cell polypropylene/polyolefin elastomer blend foams fabricated for reusable oil‐sorption materials

Wang

Pang

et al. 2016

J of Applied Polymer Sci

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The fabrication of high-performance oil sorbents is of great significance for oil spill cleanup. The main objective of this study was to prepare open-cell polypropylene/polyolefin elastomer (PP/POE) blend foams for fabrication of reusable sorbents for oil sorption. Open-cell PP/POE blend foams were prepared via continuous-extrusion foaming using supercritical carbon dioxide as the blowing agent. The interconnected open-cell structure was characterized by scanning electron microscopy. The hydrophobicity and lipophilicity of PP/POE open-cell foams were revealed by tests of contact-angle measurement, water and cyclohexane sorption on the foam surface, CCl 4 and cyclohexane sorption in water, and oil/water separation. Further, the sorption tests indicated that PP/POE blend foams showed larger oil-uptake capacities than pure PP foams. In addition, cyclic compression tests showed that PP/POE open-cell foams had excellent ductility and significantly improved recoverability compared to pure PP foams. In cyclic sorptiondesorption tests, the sorption kinetics was studied in terms of capacity and saturation time, showing that PP/POE foams kept larger sorption capacities for 10 cycles, with larger sorption rates and good reusability. Based on the high open-cell content, the good hydrophobic and oleophilic properties, the high oil-sorption capacity, the improved recoverability, the large sorption rate, and the good reusability in cyclic oil-sorption performance, the PP/POE open-cell foams have shown promise as potential oil sorbents in applications for oil spill cleanup.

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“…The reaction in each flask proceeded at 120-130°C for 12 h. When the reaction was complete, the products were cooled to room temperature, drawn from the flasks, ground into particles and the settled copolymers with chloroform were filtered. 12,13 Then, the treated products were put into a vacuum oven at 120°C for 3 h and stored in a desiccator at room temperature until used. …”

Section: Preparation Of Poly(l-lactide)-poly(ethylene Glycol) Block Cmentioning

confidence: 99%

Crystallization behavior and thermal properties of biodegradable poly(L-lactide)-poly(ethylene glycol) block copolymers

et al. 2013

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This study presents a polymerization of L-lactide and poly(ethylene glycol) of various molecular weights to produce biodegradable poly(L-lactide)-poly(ethylene glycol) (L-PEG) block copolymers. The chemical structures, crystallization behavior and thermal properties of L-PEG copolymers were investigated using proton nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy, gel permeation chromatography, thermogravimetric analysis and differential scanning calorimetry (DSC). The analysis of isothermal crystallization behavior of L-PEG copolymers using the Avrami equation revealed that the grain growth of L-PEG200 and 600 were unstable, jumping between one dimension and two dimensions. By contrast, the grain growth of L-PEG2000 was more stable, with a growth trend toward three dimensions. The results of L-PEG isothermal crystallization by DSC indicate that within a range of 123-127°C, the crystallization rate was higher at lower temperatures. The values of the crystallization constants in the Avrami equation were also lower.

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Synthesis and swelling properties of crosslinked poly(orthosilicate)s from cyclohexanedimethanols

Cited by 24 publications

References 51 publications

Kinetics study of oil sorption with open‐cell polypropylene/polyolefin elastomer blend foams prepared via continuous extrusion foaming

Kinetics study of oil sorption with open‐cell polypropylene/polyolefin elastomer blend foams prepared via continuous extrusion foaming

Open‐cell polypropylene/polyolefin elastomer blend foams fabricated for reusable oil‐sorption materials

Crystallization behavior and thermal properties of biodegradable poly(L-lactide)-poly(ethylene glycol) block copolymers

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