Formation of poly(acrylic acid)/alumina composite via in situ polymerization of acrylic acid adsorbed within oxide pores

Wang, Bin; Wang, Yaping; Zhou, Peng; Liu, Zhongqing; Luo, Shi-Zhong; Chu, Wei; Guo, Zhanhu

doi:10.1016/j.colsurfa.2016.11.051

Cited by 14 publications

(10 citation statements)

References 42 publications

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“…The difference between ν as and ν s of the —COO − group suggests a bridging mode . Adsorbed PAA also showed substantial absorbance at 1,385 cm −1 , similar to our previous report …”

Section: Resultssupporting

confidence: 91%

“…The sample was also tested using thermogravimetry (TG) (plot not shown). Assuming the mass loss in the range of 200–500°C belonged to organic matter, that is, PAA, and the polymer coverage of the oxide surface was evenly distributed, the calculated S BET was 164.0 m 2 /g using the method described in our recent publication, in which molecular PAA was in situ prepared via free radical polymerization of pre‐adsorbed acrylic acid . The measured value confirms the calculated value, suggesting the uniform coverage of PAA on alumina surface.…”

Section: Resultssupporting

confidence: 66%

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PAA/alumina composites prepared with different molecular weight polymers and utilized as support for nickel‐based catalyst

et al. 2017

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Mesoporous alumina, as a porous, high specific surface area, high activity, and heat stable material, has been widely used as an industrial adsorbent, catalyst, and catalyst support. The modification of alumina with organic polymers has been widely investigated in recent years. In this study, we compared the dependence of the adsorption of a polyelectrolyte, poly(acrylic acid) (PAA) on γ-alumina particles on polymer size via Fourier transform infrared spectroscopy, thermogravimetry, nitrogen adsorptiondesorption isotherm analysis, and atomic absorption spectrophotometry. We found that PAA with a hydrodynamic diameter greater than the alumina pore size would only adsorb on the outer surface of the oxides. For polymers with hydrodynamic diameters smaller than the alumina pore size, PAA infiltration resulted in a monolayer coverage of both the outer and inner surfaces of the oxide. Among the three PAA that could infiltrate the alumina pores, the one with the smallest molecular weight showed the highest adsorbed amount on alumina. The temperature, pH, concentration, and ionic strength of the PAA solutions were varied to illustrate the physicochemical differences of the prepared polymer/oxide composite materials. The high PAA-loaded composites were treated with a nickel ion solution, converted to Ni/alumina catalysts, and used in the methanation of carbon dioxide. The Ni/alumina catalysts were analyzed with X-ray diffraction and temperature-programmed reduction to illustrate the structural characteristics. The catalytic CO 2 methanation of the catalyst samples revealed that a solution pH value higher than pK a of PAA favored the formation of catalysts with high catalytic activity.

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“…The difference between ν as and ν s of the —COO − group suggests a bridging mode . Adsorbed PAA also showed substantial absorbance at 1,385 cm −1 , similar to our previous report …”

Section: Resultssupporting

confidence: 91%

Section: Resultssupporting

confidence: 66%

PAA/alumina composites prepared with different molecular weight polymers and utilized as support for nickel‐based catalyst

et al. 2017

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“…Acrylic resins are a well-known class of pH-responsive polymers that have been used as absorbers, anti-fouling agents and carriers, and they have excellent resistance to weather, heat and chemical. To date, researchers from worldwide are dedicated on the issues corresponding to raw materials, production technology and product quality of acrylic resins [101][102][103]. DESs exhibit similar properties to ILs that make them suitable for the processing of acrylic resins, which not only prevents the use of VOCs, but also offers a green approach for the functionalization of acrylic resins.…”

Section: Acrylic Resinsmentioning

confidence: 99%

Processing of Functional Composite Resins Using Deep Eutectic Solvent

Xue¹,

Wang²,

Feng³

et al. 2020

Crystals

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Deep eutectic solvents (DESs)—a promising class of alternatives to conventional ionic liquids (ILs) that have freezing points lower than the individual components—are typically formed from two or more components through hydrogen bond interactions. Due to the remarkable advantages of biocompatibility, economical feasibility and environmental hospitality, DESs show great potentials for green production and manufacturing. In terms of the processing of functional composite resins, DESs have been applied for property modifications, recyclability enhancement and functionality endowment. In this review, the applications of DESs in the processing of multiple functional composite resins such as epoxy, phenolic, acrylic, polyester and imprinted resins, are covered. Functional composite resins processed with DESs have attracted much attention of researchers in both academic and industrial communities. The tailored properties of DESs for the design of functional composite resins—as well as the effects of hydrogen bond on the current polymeric systems—are highlighted. In addition to the review of current works, the future perspectives of applying DESs in the processing of functional composite resins are also presented.

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“…6 De modo específico, um composto de PAA/aluminiapoli ácido acrílico com aluminia -possui capacidade removedora de íons metálicos pesados. 7 O polimetilmetacrilato de metila (PMAM) é um polímero termoplástico formado pela polimerização de monômeros de metacrilato de metila. Possui como principais características transparência e brilho, rigidez e estabilidade dimensional, dureza e resistência a raios solares (UV), além de poder ser formulado para adquirir características tais como ser inerte a raios UV e aumentar sua resistência química.…”

Section: Introductionunclassified

Methyl Polymethacrylate - Pheophytins: An Alternative to the Paper Recycling Process

Oliveira¹,

Dutra²

2019

Rev. Virtual Quim.

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The first large-scale paper recycling probably occurred during World War I. In the Second World War, paper recycling once again increased due to the need for materials. Nearly all kinds of papers are recyclable, such as cardboard, newsprint and magazines, manuals and booklets, and assorted office papers. Paper sheets which are not acceptable to recycling include brown and craft envelopes, carbon paper, paper towels, candy wrappers and pizza boxes. The paper recycling process involves a number of steps; including processing the paper waste into usable raw materials and using that raw material to produce new paper products. This work aimed to synthesize methyl polymethacrylate enriched with vegetable extract of Talinum triangulare (Talinaceae) materials, which presents pheophytins in its composition. This polymeric material was used as an input in the recycling of heat sensitive paper. The polymer was synthesized in aqueous medium with the addition of monomers methyl methacrylate and acrylic acid and as nonionic surfactant sodium lauryl ether sulfate, besides the pre emulsion formed with the plant extract. The recycling of thermosensitive paper involved water and the polymeric additive. The paper was cut into small pieces and water and acrylic polymer added. Then, the mixture was processed into domestic liquid and finally the paste was placed for drying at room temperature. The addition of polymers to the recycling process increased the hardness of the paper. In addition, recycled paper did not dissolve when placed in the presence of water, ethanol and kerosene, demonstrating high resistance to these solvents. Finally, the paper recycled with the addition of polymer-pheophytins, did not darken when exposed to artificial light.

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Formation of poly(acrylic acid)/alumina composite via in situ polymerization of acrylic acid adsorbed within oxide pores

Cited by 14 publications

References 42 publications

PAA/alumina composites prepared with different molecular weight polymers and utilized as support for nickel‐based catalyst

PAA/alumina composites prepared with different molecular weight polymers and utilized as support for nickel‐based catalyst

Processing of Functional Composite Resins Using Deep Eutectic Solvent

Methyl Polymethacrylate - Pheophytins: An Alternative to the Paper Recycling Process

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