Improved Permeate Flux of PVDF Ultrafiltration Membrane Containing PVDF-g-PHEA Synthesized via ATRP

Applied Sciences

Kwang-Mo Kim¹  Sahng Hyuck Woo¹  Ju Sung Lee²  Hyun Sic Park²  Jinwon Park²  Byoung Ryul Min¹ 

[1] Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-Gu, 120-749 Seoul, Korea;

关键词: polyvinylidene fluoride (PVDF);    2-hydroxyethyl acrylate (HEA);    atomic transfer radical polymerization (ATRP);    ultrafiltration (UF) membrane;    phase inversion;   

DOI  :  10.3390/app5041992

来源: mdpi

【 摘 要 】

Polyvinylidene fluoride (PVDF) ultrafiltration (UF) membrane combined with polyvinylidene fluoride-graft-2-hydroxyethyl acrylate (PVDF-g-PHEA) was fabricated via non-solvent induced phase separation (NIPS). In this study, PVDF-g-PHEA was synthesized via atom transfer radical polymerization (ATRP) method, and then synthesized graft copolymer was characterized using Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR) and thermogravimetry analysis (TGA). Moreover, PVDF membranes containing graft copolymer (PVDF-g-PHEA) showed lower water contact angle value than pristine PVDF membranes. Macrovoid holes were also observed in cross sectional scanning electron microscope (SEM) image of PVDF membrane containing PVDF-g-PHEA. Accordingly, it was confirmed that these characteristics led PVDF membrane blended with graft copolymer has high final permeate flux and normalized flux compared to pristine PVDF membrane.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.