Hyperbranched polymer membrane for catalytic degradation of polychlorinated biphenyl-153 (PCB-153) in water

Vlotman, D.E.; Ngila, Jane Catherine; Ndlovu, Thabile; Doyle, Bryan P.; Carleschi, Emanuela; Malinga, Soraya P.

doi:10.1016/j.reactfunctpolym.2018.12.019

Cited by 16 publications

(9 citation statements)

References 65 publications

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“…An appreciable increase in the crystal density and reduction in the crystal size was observed for PP + 1PP‐ g ‐MA + 1PEI and PP + 3PP‐ g ‐MA + 3PEI blends. The maleic anhydride grafted on to PP reacts with the amine groups present in PEI via ring opening of maleic anhydride, thus promoting better chemical interactions between PP and PEI . This enabled PEI to act as a nucleating agent and reduce the crystal size and increase the crystal density in PP.…”

Section: Resultsmentioning

confidence: 99%

“…PEI is commercially available as linear, branched, and dendritic material. PEI has been employed in various applications, for example, in biomedical field for drug encapsulation , as a transfection agent , membrane synthesis for purification of water and colorimetric sensing of metal ions . However, one of the most intriguing use of PEI is its ability to capture carbon dioxide from air via carbamate formation by interaction of amine groups and carbon dioxide .…”

Section: Introductionmentioning

confidence: 99%

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Comprehensive studies on polyethylenimine filled polypropylene and its potential application in carbon dioxide sequestration

Patra

Jaisingh

Goel

et al. 2019

Polymer Engineering & Sci

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Polypropylene (PP) was blended with branched polyethylenimine (PEI) with the aim to prepare blends having CO 2 adsorption property. The CO 2 adsorption properties will be conferred due to the presence of variety of amine functionality in PEI. PEI contains primary, secondary as well as tertiary amine groups. Before testing CO 2 adsorption, PP-PEI blends were characterized using variety of techniques, for example, differential scanning calorimetry, thermogravimetric analysis, dynamic mechanical analysis, scanning electron microscopy, and polarized light optical microscopy. In this work, we have studied in detail both compatibilized as well as noncompatibilized blends of PP and PEI. The compatibilization was achieved via addition of maleic anhydride grafted PP. Finally, all the compatibilized as well as noncompatibilized blends were studied for CO 2 adsorption. The compatibilized blends showed better thermal, mechanical as well as CO 2 adsorption properties as compared to the noncompatibilized blends. POLYM. ENG.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comprehensive studies on polyethylenimine filled polypropylene and its potential application in carbon dioxide sequestration

Patra

Jaisingh

Goel

et al. 2019

Polymer Engineering & Sci

View full text Add to dashboard Cite

show abstract

“…[151] Replacement of PPI with its non-symmetric PEI analogue on polysulfone and selecting a different bimetallic pair Fe/Pd of 4/1 ratio (Figure 19a) carried out the dechlorination of adsorbed polychlorinated biphenyl-153 (Figure 19b). The minimal metal leaching was observed after a period of four days was attributed to the solid incorporation of the NPs into the internal hyperbranched cavities [152].…”

Section: Preprintsmentioning

confidence: 96%

Catalytic Neutralization of Water Pollutants Mediated by Dendritic Polymers

Arkas¹,

Anastopoulos²,

Giannakoudakis³

et al. 2021

Preprint

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Radially polymerized dendritic compounds are nowadays an established polymer category next to their linear, branched and cross-linked counterparts. Their uncommon tree-like architecture is characterized by adjustable internal cavities and external groups. They are therefore exceptional absorbents and this attainment of high concentrations into their interior renders them ideal reac-tion media. In this framework they are applied in many environmentally benign implementa-tions. One of the most important among them is water purification though pollutant decomposi-tion. Simple and composite catalysts and photo-catalysts containing dendritic polymers and ap-plied in water remediation will be discussed jointly with some unconventional solutions and fu-ture prospects.

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“…[163] Replacement of PPI with its non-symmetric PEI analog on polysulfone and selecting a different bimetallic pair Fe/Pd of 4/1 ratio (Figure 20a) carried out the dechlorination of adsorbed polychlorinated biphenyl-153 (Figure 20b). The minimal metal leaching was observed after four days was attributed to the solid incorporation of the NPs into the internal hyperbranched cavities [164].…”

Section: Applications Of Heterogenous Catalysis In the Treatment Of Other Water Contaminantsmentioning

confidence: 97%

Catalytic Neutralization of Water Pollutants Mediated by Dendritic Polymers

et al. 2022

View full text Add to dashboard Cite

Radially polymerized dendritic compounds are nowadays an established polymer category next to their linear, branched, and cross-linked counterparts. Their uncommon tree-like architecture is characterized by adjustable internal cavities and external groups. They are therefore exceptional absorbents and this attainment of high concentrations in their interior renders them ideal reaction media. In this framework, they are applied in many environmentally benign implementations. One of the most important among them is water purification through pollutant decomposition. Simple and composite catalysts and photo-catalysts containing dendritic polymers and applied in water remediation will be discussed jointly with some unconventional solutions and prospects.

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Hyperbranched polymer membrane for catalytic degradation of polychlorinated biphenyl-153 (PCB-153) in water

Cited by 16 publications

References 65 publications

Comprehensive studies on polyethylenimine filled polypropylene and its potential application in carbon dioxide sequestration

Comprehensive studies on polyethylenimine filled polypropylene and its potential application in carbon dioxide sequestration

Catalytic Neutralization of Water Pollutants Mediated by Dendritic Polymers

Catalytic Neutralization of Water Pollutants Mediated by Dendritic Polymers

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