2019
DOI: 10.1002/app.48583
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Enhanced modification technique for polyacrylonitrile UF membranes by direct hydrolysis in the immersion bath

Abstract: Conventional hydrolysis modification of polyacrylonitrile (PAN) membranes is usually carried out in a post-treatment step during which hydrophilic groups are created on the membrane surface. In this article, however, direct hydrolysis in the immersion bath is proposed as a new and simple approach for simultaneous membrane preparation and modification. The main advantages of this method include lower alkali concentrations, promptness, and the lack of need for elevating temperature compared to other studies. The… Show more

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Cited by 14 publications
(4 citation statements)
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“…Polyacrylonitrile is a synthetic polymer having hydrophobicity, semi-crystalline structure and is thermally stable polymer that usually degrades over 300 °C [9]. Polyacrylonitrile is characterized by interesting properties related to solvent resistance, abrasion resistance, mechanical, thermal and chemical stabilities, low cost [10,11]. The interesting properties lead it to be used in biomedical applications [10].…”
Section: Introductionmentioning
confidence: 99%
“…Polyacrylonitrile is a synthetic polymer having hydrophobicity, semi-crystalline structure and is thermally stable polymer that usually degrades over 300 °C [9]. Polyacrylonitrile is characterized by interesting properties related to solvent resistance, abrasion resistance, mechanical, thermal and chemical stabilities, low cost [10,11]. The interesting properties lead it to be used in biomedical applications [10].…”
Section: Introductionmentioning
confidence: 99%
“…Additionally, Cheraghali et.al 1 investigated the effects of hydrolysis time or the alkaline concentration in the modification treatment of PAN membrane, and the results of FTIR characterization shows a growing number of C≡N groups on PAN chains are converted into amide and carboxyl groups with the increasing the hydrolysis time or the alkaline concentration. Thus, the hydrophobic C≡N groups of porous PAN‐1 membrane has converted into hydrophilic functional groups after the alkali treatment, namely amide (CONH 2 ), COOH and COO − 31–33 in this study.…”
Section: Resultsmentioning
confidence: 90%
“…Moradi et al followed the same aim as antifouling improvement in UF membranes . The researchers could modify the PAN MF membranes to also achieve sulfamethoxazole degradation and bacteria removal, etc …”
Section: Application Of Pan-based Membranesmentioning
confidence: 99%