Preparation and performance of hydroxylated PPESK composite membrane

化学工业与工程

Chemcial Industry and Engineering

2023, Vol. 40

Issue (3) :13-19 DOI: 10.13353/j.issn.1004.9533.20220339

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Preparation and performance of hydroxylated PPESK composite membrane

ZOU Yuyang, LI Zhansheng, ZHAO Siyu, ZHANG Shouhai, JIAN Xigao

School of Chemical Engineering, Technology Innovation Center of High Performance Resin Materials, Liaoning Province, Dalian University of Technology, Dalian Liaoning 116024, China

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Abstract Poly(phthalazinone ether sulfone ketone) (PPESK) substrate membrane was hydroxylated with NaBH₄. The composite membrane was prepared via the traditional interfacial polymerization of m-phenylenediamine (MPD) and trimethylene chloride (TMC). FT-IR, water contact angle goniometer, SEM and XPS were applied to characterize the surface morphology and elements distribution of the membranes. The hydrophilicity of PPESK-OH substrate membrane was enhanced by the presence of hydroxyl group reduced from carbonyl group. The cross-linking degree in polyamide (PA) layer of PPESK-OH composite was greater than that of PPESK composite membrane. For 2 000 mg·L^-1 Na₂SO₄ aqueous solution, the salt rejection of the PPESK-OH composite was almost the same as that of the PPESK composite membrane, the flux of the former was increased by 38%.

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	ZOU Yuyang
	LI Zhansheng
	ZHAO Siyu
	ZHANG Shouhai
	JIAN Xigao

Keywords： poly(phthalazinone ether sulfone ketone) hydroxylation modification composite membrane

Received 2022-05-18;

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Corresponding Authors: 李战胜,E-mail:lizs@dlut.edu.cn。 Email: lizs@dlut.edu.cn

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ZOU Yuyang, LI Zhansheng, ZHAO Siyu, ZHANG Shouhai, JIAN Xigao.Preparation and performance of hydroxylated PPESK composite membrane[J] Chemcial Industry and Engineering, 2023,V40(3): 13-19

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