Evaluation of the permeability of silver nanoparticles in polymer films of sulfonated polystyrene-co-acrylic acid

Paula, Marcos Marques da Silva; Souza, H. J. de; Búrigo, Carina; Langbehn, Jamile Thön; Baesso, Alice Scarabelot; Silva, Luciano da; Silva, Paulo Roberto Paes da; Benavides, R.; Alonso-Núñez, G.; Collins, Virginia

doi:10.1016/j.colsurfa.2017.01.060

Cited by 3 publications

(2 citation statements)

References 36 publications

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“…It could be found the representative characteristic bands of polystyrene at 699 cm −1 (the folding vibration peak of benzene ring), 760 cm −1 (the bending vibration peak of CH of benzene), and 1493 and 1601 cm −1 (the stretching vibration peaks of CC of benzene ring) in the FTIR spectra of P(S‐AA) n , respectively (Figure 1A). And the characteristic peak of the axial deformation of C═O of AA at 1704 cm −1 is also observed, which indicated that AA monomers are introduced into the main chain 39,40 . Moreover, the molecular weights of P(S‐AA) n are measured by GPC with polystyrene standards (Figure 1B).…”

Section: Resultsmentioning

confidence: 91%

“…And the characteristic peak of the axial deformation of C═O of AA at 1704 cm À1 is also observed, which indicated that AA monomers are introduced into the main chain. 39,40 Moreover, the molecular weights of P(S-AA) n are measured by GPC with polystyrene standards (Figure 1B). The results indicated that the series of P(S-AA) n has a relatively high molecular weight at the range from 80 000 to 90 000.…”

Section: Resultsmentioning

confidence: 99%

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Fabrication of form‐stable phase change material with enhanced thermal performance based on the cocrystal of comb‐like polymer and paraffin

Kong

Zou

et al. 2021

Energy Storage

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The comb-like polymers with crystalline aliphatic side chains are synthesized and then applied as the supporting material of phase change material. First, poly(styrene-co-acrylic acid) n -graft-octadecylamine (P(S-AA) n -C18, wherein "n" denoted AA feed ratio) is prepared. The crystalline behaviors of the comblike polymer with different grafting densities are investigated. Then the paraffin@P(S-AA) n -C18 is obtained by packing paraffin into P(S-AA) n -C18. Attributed to the cocrystallization with paraffin, a form-stable phase change material (FSPCM) with high content of paraffin (≥90 wt% paraffin in FSPCMs without obvious leakage) and enhanced thermal property is obtained. The melting and freezing enthalpies of FSPCMs reach 124.4 and 126.3 J/g, respectively, which are higher than that of pure paraffin. And good thermal cycling stability and good thermal stability of FSPCMs are also exhibited. The result offers an avenue for developing the high-efficient thermal energy storage materials.

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Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Fabrication of form‐stable phase change material with enhanced thermal performance based on the cocrystal of comb‐like polymer and paraffin

Kong

Zou

et al. 2021

Energy Storage

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Construction of lamellar morphology by side‐chain crystalline comb‐like polymers for gas barrier

Kong

Deng

et al. 2021

Polymers for Advanced Techs

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A comb-like polymer containing crystallized alkyl side chains and the intermolecular hydrogen bonds between the linking groups was fabricated by grafting long-chain fatty amine onto poly(styrene-co-acrylic acid) n (P(S-AA) n , wherein "n" denoted AA feed ratio). The chemical structures and crystallization behaviors of the comb-like polymer P(S-AA) n -g(p) (wherein "p" denoted the number of side-chain carbon atoms) were analyzed by Fourier transform infrared, gel permeation chromatography, X-ray photoelectron spectroscopy, and X-ray diffractometer, differential scanning calorimetry, atomic force microscopy, respectively. It was found that the lamellar morphology could be generated by controlling the grafting density and side chain length of P(S-AA) n -g(p). Moreover, it was identified that the hydrogen bonds between amide groups could enhance the crystallinity and then adjust the interlamellar spacing of lamellar phase. As a result, P(S-AA) 70 -g(18) with the highest degree of crystallinity and closely packed lamellar morphology showed a good gas-barrier performance, and the nitrogen permeability reached 1.78 Â 10 À14 cm 3 Ácm/cm 2 ÁsÁPa. Furthermore, the permeation switch of the obtained comb-like polymer could reach 500 times traversing the melting point.

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Development of polymeric electrolytes for fuel cells: Synthesis and characterization of new sulfonated polystyrene-co-acrylonitrile-co-butyl acrylate terpolymers

et al. 2022

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Evaluation of the permeability of silver nanoparticles in polymer films of sulfonated polystyrene-co-acrylic acid

Cited by 3 publications

References 36 publications

Fabrication of form‐stable phase change material with enhanced thermal performance based on the cocrystal of comb‐like polymer and paraffin

Fabrication of form‐stable phase change material with enhanced thermal performance based on the cocrystal of comb‐like polymer and paraffin

Construction of lamellar morphology by side‐chain crystalline comb‐like polymers for gas barrier

Development of polymeric electrolytes for fuel cells: Synthesis and characterization of new sulfonated polystyrene-co-acrylonitrile-co-butyl acrylate terpolymers

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