TY - JOUR

T1 - Application of Cyclized Polyacrylonitrile for Ultrafiltration Membrane Fouling Mitigation

AU - Pulyalina, Alexandra

AU - Tian, Nadezhda

AU - Senchukova, Anna

AU - Faykov, Ilya

AU - Ryabikova, Maria

AU - Novikov, Alexander

AU - Saprykina, Natalia

AU - Polotskaya, Galina

N1 - Pulyalina, A.; Tian, N.; Senchukova, A.; Faykov, I.; Ryabikova, M.; Novikov, A.; Saprykina, N.; Polotskaya, G. Application of Cyclized Polyacrylonitrile for Ultrafiltration Membrane Fouling Mitigation. Membranes 2022, 12, 489. https://doi.org/10.3390/membranes12050489

PY - 2022/4/30

Y1 - 2022/4/30

N2 - In this study, novel composites were produced by blending partially cyclized polyacryloni-trile (cPAN) and poly(amide-imide) (PAI) in N-methylpyrrolidone in order to fabricate asymmetric membranes via phase inversion method. The compatibility of PAI and cPAN through possible inter-molecular interaction was examined by quantum chemical calculations. The composite membranes were characterized by FTIR, SEM, contact angle measurements, etc. A considerable reduction in the contact angles of water and ethylene glycol (EG) was observed after adding cPAN to the PAI membrane, which is evidence of improved membrane hydrophilicity. Membrane transport properties were investigated in ultrafiltration tests by measuring the pure water flux, rejection of proteins, and flux recovery ratio (FRR). The best properties were found for the membrane containing 5 wt% cPAN; an increase in BSA rejection and a remarkable increase in FRR were observed, which can be explained by the hydrophilization of the membrane surface provided by the presence of cPAN.

AB - In this study, novel composites were produced by blending partially cyclized polyacryloni-trile (cPAN) and poly(amide-imide) (PAI) in N-methylpyrrolidone in order to fabricate asymmetric membranes via phase inversion method. The compatibility of PAI and cPAN through possible inter-molecular interaction was examined by quantum chemical calculations. The composite membranes were characterized by FTIR, SEM, contact angle measurements, etc. A considerable reduction in the contact angles of water and ethylene glycol (EG) was observed after adding cPAN to the PAI membrane, which is evidence of improved membrane hydrophilicity. Membrane transport properties were investigated in ultrafiltration tests by measuring the pure water flux, rejection of proteins, and flux recovery ratio (FRR). The best properties were found for the membrane containing 5 wt% cPAN; an increase in BSA rejection and a remarkable increase in FRR were observed, which can be explained by the hydrophilization of the membrane surface provided by the presence of cPAN.

KW - ultrafiltration

KW - polymer composites

KW - cyclized polyacrylonitrile

KW - poly(amide-imide)

UR - http://www.scopus.com/inward/record.url?scp=85129973919&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/52bd143c-d215-381b-b5b8-bbf398088b39/

U2 - 10.3390/membranes12050489

DO - 10.3390/membranes12050489

M3 - Article

AN - SCOPUS:85129973919

VL - 12

JO - Membranes

JF - Membranes

SN - 2077-0375

IS - 5

M1 - 489

ER -