The Permeability of Polyester Film (PEN) to Copper Ions

Berdous, S.; Berdous, Dalila; Saidi-Amroun, N.; Akretche, D.E.; Saïdi, M.

doi:10.1080/1023666x.2013.785066

Cited by 6 publications

(1 citation statement)

References 15 publications

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“…In Table , the crystallinities of the oligomeric samples are given as calculated from the reaction enthalpies . As expected, the degree of crystallization increases with increasing sequence length and is highest for the parent polymer PEN.…”

Section: Resultsmentioning

confidence: 59%

Synthesis of ethylene terephthalate and ethylene naphthalate (PET‐PEN) block‐co‐polyesters with defined surface qualities by tailoring segment composition

Geyer

Röhner

Lorenz

et al. 2014

J of Applied Polymer Sci

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Ethylene terephthalate and ethylene naphthalate oligomers of defined degree of polymerization were synthesized via chemical recycling of the parent polymers. The oligomers were used as defined building blocks for the preparation of novel block-co-polyesters having tailored sequence compositions. The sequence lengths were systematically varied using Design of Experiments. The dispersive surface energy and the specific desorption energy of the co-polymers were determined by inverse gas chromatography. The study shows that polyethylene terephthalate-polyethylene naphthalate (PET-PEN) block-co-polyesters of defined sequence lengths can be prepared. Furthermore, the specific and dispersive surface energies of the obtained block-co-polyesters showed a linear dependence on the oligomer molecular weight and it was possible to regulate and control their interfacial properties. In contrast, with the corresponding random-block-co-polyesters no such dependence was found. The synthesized block-co-polyesters could be used as polymeric modifying agents for stabilizing PET-PEN polymer blends.

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Section: Resultsmentioning

confidence: 59%

Synthesis of ethylene terephthalate and ethylene naphthalate (PET‐PEN) block‐co‐polyesters with defined surface qualities by tailoring segment composition

Geyer

Röhner

Lorenz

et al. 2014

J of Applied Polymer Sci

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Ion exchange membrane textile bioreactor as a new alternative for drinking water denitrification

Berdous

Akretche

Abderahmani

et al. 2014

Appl Microbiol Biotechnol

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This work enters in the optics of the denitrification of a polluted water by two membrane techniques, the Donnan dialysis (DD) and the ion exchange membrane bioreactor (IEMB), using a conventional barrier, composed by an anion exchange membrane (AEM), and a hybrid barrier, where the AEM is combined to an anion exchange textile (AET). The effects of the hydrodynamic factor and the nature of the carbon source on the transfer and the reduction of nitrate ions were studied. The study results obtained through the DD showed the effectiveness of the hybrid barrier in the recovery and concentration of nitrate ions. This was also recorded during denitrification by the hybrid process, called the ion exchange membrane textile bioreactor (IEMTB), with a significant reduction of nitrates, compared to IEMB, due to the efficiency of the Pseudomonas aeruginosa biofilm formed at the surface of the AET. Here, the permselectivity of the membrane and the good bioreduction of the pollutants are no longer major conditions to the better performance of the process. The application of IEMTB in the denitrification of groundwater, having a nitrate concentration of 96.67 ppm, shows a total reduction of nitrate ions without changing the quality of the water. Indeed, the analysis of the recovered water, or yet the treated water, shows the absence of the bacterium by-products and concentrations in the nitrates and nitrites which are, respectively, equal to 0.02±0.01 ppm, and inferiors to the detection limit (<0.02 ppm).

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Dielectric Relaxation and Alternating-Current Conductivity of Highly Crystalline Poly (ethylene-2,6-naphthalenedicarboxylate) Films

Benabed

Seghier

Boudraa

et al. 2020

Journal of Elec Materi

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The Permeability of Polyester Film (PEN) to Copper Ions

Cited by 6 publications

References 15 publications

Synthesis of ethylene terephthalate and ethylene naphthalate (PET‐PEN) block‐co‐polyesters with defined surface qualities by tailoring segment composition

Synthesis of ethylene terephthalate and ethylene naphthalate (PET‐PEN) block‐co‐polyesters with defined surface qualities by tailoring segment composition

Ion exchange membrane textile bioreactor as a new alternative for drinking water denitrification

Dielectric Relaxation and Alternating-Current Conductivity of Highly Crystalline Poly (ethylene-2,6-naphthalenedicarboxylate) Films

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