Surface modification of polypropylene membrane by polyethylene glycol graft polymerization

Abednejad, Atiye; Amoabediny, Ghassem; Ghaee, Azadeh

doi:10.1016/j.msec.2014.05.060

Cited by 63 publications

(31 citation statements)

References 18 publications

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“…1(a), where new absorption peaks appeared in ATR-FTIR spectra of the photomodified membranes in comparison with those obtained for the control PES membrane. Firstly, the characteristic broad band appeared at 3300-3400 cm -1 increased its intensity when both additives (PEG and Al 2 O 3 ) were incorporated on the membrane surface, due to the presence of both hydrated Al 2 O 3 and O-H groups from grafted PEG chains [15,19]. A new absorption peak was observed at 1645 cm -1 , which could be assigned to the carboxyl group in asymmetric stretching and it appeared when PES material is irradiated using UV light.…”

Section: Membrane Characterisationmentioning

confidence: 99%

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Surface photomodification of flat-sheet PES membranes with improved antifouling properties by varying UV irradiation time and additive solution pH

García-Ivars

Iborra–Clar

Alcaina–Miranda

et al. 2016

Chemical Engineering Journal

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Section: Membrane Characterisationmentioning

confidence: 99%

“…This fact could be explained by the surface deterioration and degradation of PEG after being exposed for longer irradiation times [19,25]. agglomerations at these conditions, which could hinder their entrapment on the surface structure (as was explained above).…”

Section: Membrane Characterisationmentioning

confidence: 99%

Surface photomodification of flat-sheet PES membranes with improved antifouling properties by varying UV irradiation time and additive solution pH

García-Ivars

Iborra–Clar

Alcaina–Miranda

et al. 2016

Chemical Engineering Journal

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“…A final concentration of 15 3 10 4 platelets/mm 3 was used, with a viscosity of 1 cp, which is the same as the viscosity of culture medium. 26 Polyethylene glycol-grafted silicone (PEG Si) tubes were prepared as described previously 27 and used as a negative control. In short, plasma-pretreated silicone tubes were immersed in PEG/ethanol solution (20 g/L), and physically adsorbed PEG was grafted on silicone using plasma treatment for 3 min.…”

Section: Endothelial Cell Morphologymentioning

confidence: 99%

Biomimetic modification of silicone tubes using sodium nitrite–collagen immobilization accelerates endothelialization

et al. 2015

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Biomimetic coatings to increase endothelialization of blood-contacting materials in biomedical devices are promising to improve the biocompatibility of these devices. Although a stable extracellular matrix protein coating on a biomaterial's surface is a prerequisite for endothelial cell attachment, it also stimulates platelet adhesion. Therefore, antithrombotic additives, such as nitric oxide donors, to a stable protein coating might lead to successful endothelialization of a material's surface. We aimed to test whether immobilized bioactive nitrite and acidified nitrite-generating sodium nitrite-collagen conjugate on silicone tubes enhances endothelialization by increasing the number of endothelial cells as well as growth hormone production and by decreasing platelet adhesion. Stable collagen immobilization on acrylic acid-grafted silicone tubes decreased the water contact angle from 102° to 56°. Initial 25 µM sodium nitrite in conjugate resulted in maximal growth hormone production (2.5-fold increase) and endothelial cell number (1.8-fold increase) after 2 days. A 95% confluent endothelial cell monolayer on sodium nitrite-collagen conjugate coating was obtained after 6 days. Maximum (2.7-fold) inhibition of platelet adhesion was reached with initial 500 µM sodium nitrite in conjugate. Our data showing that sodium nitrite-collagen conjugate coating with 25-50 µM sodium nitrite on silicone tubes increases the number of endothelial cells attached and inhibits platelet adhesion suggest that this coating is highly promising for use in blood-contacting parts of biomedical devices. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 104B: 1311-1321, 2016.

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“…It was confirmed that the filtration performance and antifouling property of polypropylene hollow fiber membranes could be improved via the hydrophilic surface by Yu et al , and membrane recovery became also more efficient. Abednejad et al showed that the antifouling property of polypropylene hollow fiber membranes could be enhanced effectively through the plasma graft‐polymerization of PEG.…”

Section: Introductionmentioning

confidence: 99%

Improving the antifouling property of polypropylene hollow fiber membranes by in situ ultrasonic wave‐assisted polymerization of styrene and maleic anhydride

Shao

Wei

Luo

et al. 2018

Polymer Engineering & Sci

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For the purpose of enhancing the hydrophilicity and antifouling property, styrene‐maleic anhydride copolymer (SMA) was successfully introduced on the surface of polypropylene hollow fiber membranes via in situ ultrasonic wave‐assisted polymerization. It was shown that how to avoid the hydrolysis and esterification of anhydride groups was the key for improving the hydrophilicity and antifouling property of membranes. Some factors were studied in detail, such as solvent, concentration of solution as well as time and temperature of ultrasonic treatment. Results showed that acetone and ethanol as solvents performed different functions during the process of the polymerization, and ethanol, a polar solvent, reacted with anhydride groups to hinder the formation of SMA and improvement of antifouling property. The modified membranes (PPM1 and PPM5) exhibit both high water flux and strong antifouling capability. Besides, antifouling property of modified membranes was very stable, which proved that they can work in reality. This study supplied a new approach to fabricate highly efficient polymeric membranes applicable to wastewater purification. POLYM. ENG. SCI., 59:E51–E58, 2019. © 2018 Society of Plastics Engineers

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Surface modification of polypropylene membrane by polyethylene glycol graft polymerization

Cited by 63 publications

References 18 publications

Surface photomodification of flat-sheet PES membranes with improved antifouling properties by varying UV irradiation time and additive solution pH

Surface photomodification of flat-sheet PES membranes with improved antifouling properties by varying UV irradiation time and additive solution pH

Biomimetic modification of silicone tubes using sodium nitrite–collagen immobilization accelerates endothelialization

Improving the antifouling property of polypropylene hollow fiber membranes by in situ ultrasonic wave‐assisted polymerization of styrene and maleic anhydride

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