TY - JOUR

T1 - Novel Composite Membranes Based on Chitosan Copolymers with Polyacrylonitrile and Polystyrene: Physicochemical Properties and Application for Pervaporation Dehydration of Tetrahydrofuran

AU - Otvagina, Ksenia V.

AU - Penkova , Anastasia V.

AU - Dmitrenko, Maria E.

AU - Kuzminova, Anna I.

AU - Sazanova , Tatyana S.

AU - Vorotyntsev, Andrey V.

AU - Vorotyntsev, Ilya V.

N1 - Otvagina, K. V., Penkova, A. V., Dmitrenko, M. E., Kuzminova, A. I., Sazanova, T. S., Vorotyntsev, A. V., & Vorotyntsev, I. V. (2019). Novel composite membranes based on chitosan copolymers with polyacrylonitrile and polystyrene: Physicochemical properties and application for pervaporation dehydration of tetrahydrofuran. Membranes, 9(3). https://doi.org/10.3390/membranes9030038

PY - 2019/3/7

Y1 - 2019/3/7

N2 - Pervaporation has been applied for tetrahydrofuran (THF) dehydration with novel composite membranes advanced by a thin selective layer composed of chitosan (CS) modified by copolymerization with vinyl monomers, acrylonitrile (AN) and styrene, in order to improve the chemical and mechanical stability of CS-based membranes. Composite membranes were developed by depositing a thin selective layer composed of CS copolymers onto a commercially-available porous support based on aromatic polysulfonamide (UPM-20®). The topography and morphology of the obtained materials were studied by atomic force microscopy (AFM), scanning electron microscopy (SEM) and X-ray diffraction analysis (XRD). Thermal properties and stability were determined by coupled evolved gas analysis (EGA-MS). Transport properties were estimated in pervaporation dehydration of THF. The effect of operating parameters for the pervaporation dehydration of THF such as feed compositions and temperatures (295, 308 and 323 K) was evaluated. It was shown that CS modification with different vinyl monomers led to a difference in physical and transport properties. The composite membrane with the thin selective layer based on CS-PAN copolymer demonstrated optimal transport properties and exhibited the highest water content in the permeate with a reasonably high permeation flux.

AB - Pervaporation has been applied for tetrahydrofuran (THF) dehydration with novel composite membranes advanced by a thin selective layer composed of chitosan (CS) modified by copolymerization with vinyl monomers, acrylonitrile (AN) and styrene, in order to improve the chemical and mechanical stability of CS-based membranes. Composite membranes were developed by depositing a thin selective layer composed of CS copolymers onto a commercially-available porous support based on aromatic polysulfonamide (UPM-20®). The topography and morphology of the obtained materials were studied by atomic force microscopy (AFM), scanning electron microscopy (SEM) and X-ray diffraction analysis (XRD). Thermal properties and stability were determined by coupled evolved gas analysis (EGA-MS). Transport properties were estimated in pervaporation dehydration of THF. The effect of operating parameters for the pervaporation dehydration of THF such as feed compositions and temperatures (295, 308 and 323 K) was evaluated. It was shown that CS modification with different vinyl monomers led to a difference in physical and transport properties. The composite membrane with the thin selective layer based on CS-PAN copolymer demonstrated optimal transport properties and exhibited the highest water content in the permeate with a reasonably high permeation flux.

KW - Chitosan

KW - Composite membrane

KW - Copolymers

KW - Dehydration

KW - Pervaporation

KW - Selective layer

KW - Tetrahydrofuran

KW - copolymers

KW - chitosan

KW - BLEND MEMBRANES

KW - AQUEOUS-SOLUTIONS

KW - ISOPROPANOL

KW - tetrahydrofuran

KW - ACRYLONITRILE

KW - DESALINATION

KW - composite membrane

KW - POLY(VINYL ALCOHOL)

KW - AZEOTROPIC MIXTURE

KW - WATER MIXTURES

KW - dehydration

KW - FABRICATION

KW - SEPARATION

KW - selective layer

KW - pervaporation

UR - http://www.scopus.com/inward/record.url?scp=85064163968&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/novel-composite-membranes-based-chitosan-copolymers-polyacrylonitrile-polystyrene-physicochemical-pr

U2 - 10.3390/membranes9030038

DO - 10.3390/membranes9030038

M3 - Article

VL - 9

JO - Membranes

JF - Membranes

SN - 2077-0375

IS - 3

M1 - 38

ER -