Novel flexible styrenic elastomer cation-exchange material based on phenyl functionalized polystyrene-butadiene copolymer

Ying, Wu; Jang, Ji Uk; Lee, Min Woo; Hwang, Taek Sung; Lee, Kyung Jin; Lee, Bumjae

doi:10.1016/j.jiec.2016.11.024

Cited by 5 publications

(4 citation statements)

References 44 publications

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“…The titration was used to measure ion exchange capacity. The pretreated polymer beads with acid were dried by freezedrying for a whole day, and 40 mg beads were taken, suspended in 10 mL deionized water, and titrated with 0.1 mol/L standard NaOH aqueous solution in the presence of a phenolphthalein indicator [17][18][19].…”

Section: Methodsmentioning

confidence: 99%

Sulfonic Containing Polymer Bead Synthesized through Inverse Suspension Polymerization and Its Characteristics for Esterification Catalyst

Shan

Wang

Nie

et al. 2019

Advances in Polymer Technology

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The sulfonic containing polymer bead was synthesized using sodium p-styrenesulfonate (SSS) and N,N′-methylenebisacrylamide (MBA) through inverse suspension polymerization and evaluated as catalyst for esterification of of n-octanol and acrylic acid. The influence of some principal factors, such as combination dispersant, crosslink agent content, posttreatment methods, and porogen types, was investigated in detail. The results showed that the morphology and characteristics of polymer beads were controllable. The polymer beads with 20wt% crosslink agent showed the best catalysis ability achieving almost 96% esterification conversion at the first time and 80% after 5 cycles.

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Section: Methodsmentioning

confidence: 99%

Sulfonic Containing Polymer Bead Synthesized through Inverse Suspension Polymerization and Its Characteristics for Esterification Catalyst

Shan

Wang

Nie

et al. 2019

Advances in Polymer Technology

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“…When the temperature reached the set point, 5 g of dry polymeric resin was added. Aliquots were withdrawn from the reactor at prescribed times (15,30,60, 90, and 120 min) and immediately cooled to stop the reaction.…”

Section: Resin Sulfonationmentioning

confidence: 99%

“…heavy metals require hard agitation. 14 Hydrophobic cation exchange resins are required for this application due to its flexibility and low swelling in water, 15 which favors mechanical resistance. Hence, the use of a small and rigid molecule, such as DVB, as crosslinker, is the main issue to be discussed because absorbance of solvents and mechanical properties is affected by the crosslinker chain length.…”

mentioning

confidence: 99%

Sulfonated poly (styrene‐co‐ethylene glycol dimethacrylate) with attractive ion exchange capacity

Theodoro

Dias

Penariol

et al. 2018

Polymers for Advanced Techs

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Sulfonated resins are applied as catalysts in different reactions such as esterification, etherification, and transesterification. Poly (styrene‐co‐divinylbenzene) particles are the most used material for this kind of application. However, the development of copolymer resins with a longer crosslinker and more flexible chains could improve diffusion, mechanical, and chemical properties allowing the development of customized materials. In the present study, the use of ethylene glycol dimethacrylate, as crosslinker, was assessed in order to find optimal conditions to produce particles with high ion exchange capacity. The experimental study provided sulfonated styrene‐co‐(ethylene glycol dimethacrylate) with ion exchange capacities up to 5.98 meq/g. The present formulations provided resins with similar properties when compared with ion exchange capacity of commercially available products, such as Amberlyst® and Lewatit® resins. Furthermore, the present sulfonation process is energetically attractive because the reactions can be carried out at relatively low temperatures (approximately 58°C) and less reagent amounts in comparison with well‐known synthesis processes.

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“…There were many attempts to use the used and soft rubber tires without chemical treatments and linking the product with adhesive in an attempt to purify water from heavy metal ions phenols and mineral oils but the result was a weak adsorption capacity and high cost of the product (Aisien et al, 2013;Osayi et al, 2014). However, the chemical treatment of rubber tires significantly changes their physical and chemical properties to obtain materials with new properties that are economically and practically important for the preparation of ion-cationic exchanges (Falazi, 2007;Mallah, 2019;(Falazi et al, 2009) for use in industrial water purification, desalination of sea water, improvement of soil properties, or preparation of anionic exchangers (Ying et al, 2017;Keda, 2003).…”

Section: Introductionmentioning

confidence: 99%

Recycling of Vulcanized Rubber Waste to Cationic Exchanger

Khalaf¹

2020

SJKFU

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In this research, we headed towards the utilization of waste rubber vulcanizing (car wheels) and it by transforming it into cationic exchanger without precious material consumption or complex equipment. The waste was ground into small pieces except the layer containing the steel wires in order to reach a degree of smoothness that enables us to deal with the rubber waste and obtain the greatest degree of homogeneity, then it was treated with sulfuric acid and benzene to insert its aromatic benzene rings into the double bonds found in polybutadiene and polyisoprene, which represents about half of the wheel weight and it was treated at the normal temperature for 7 days.In the next stage. The aromatic rings resulting, it was sulfonated by oleum for five hours at 110 oC and get a cationic exchanger. Some of the chemical-physical properties of the prepared exchanger were studied (acid capacitance, exchange capacitance, distribution coefficients, bloating water, and stability of the exchanger towards reactivation processes). The acidic capacity reached the value (5.8 meq/g), the bloating water reached the value (0.63 gH2O/g) for the acidic formula and the value (0.70 gH2O/g) for the salt formula, and determined the exchange capacitances for copper and nickel cations at different sizes and concentrations. It was found that the exchange capacitance increases with increasing volume and concentration. The prepared exchanger has good acidic and exchange capacity, which allows it to be used to purify industrial water from heavy metal cations, as well as its chemical and mechanical stability towards reactivation processes.

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Novel flexible styrenic elastomer cation-exchange material based on phenyl functionalized polystyrene-butadiene copolymer

Cited by 5 publications

References 44 publications

Sulfonic Containing Polymer Bead Synthesized through Inverse Suspension Polymerization and Its Characteristics for Esterification Catalyst

Sulfonic Containing Polymer Bead Synthesized through Inverse Suspension Polymerization and Its Characteristics for Esterification Catalyst

Sulfonated poly (styrene‐co‐ethylene glycol dimethacrylate) with attractive ion exchange capacity

Recycling of Vulcanized Rubber Waste to Cationic Exchanger

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