TY - JOUR

T1 - Hybrid macromolecular stars with fullerene(C60) core included in polyphenyleneisophthalamide membranes for n-butanol dehydration

AU - Pulyalina, Alexandra

AU - Larkina, Alyona

AU - Tataurov, Maksim

AU - Vinogradova, Ludmila

AU - Polotskaya, Galina

N1 - Publisher Copyright: © 2019, © 2019 Taylor & Francis Group, LLC. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.

PY - 2020/1/2

Y1 - 2020/1/2

N2 - The problem of n-butanol ‒ water separation arises from the widespread interest to the search for alternative energy sources. To solve the problem by membrane technique, pervaporation membranes were developed on the basis of polyphenyleneisophthalamide modified with hybrid star macromolecules containing six arms of polystyrene and six arms of poly-tert-butyl methacrylate on the fullerene (C60) core. The structure was studied by scanning electron microscopy that reveal a tendency to form domains in the membranes modified by star macromolecules. Modification of the membrane by star fullerene (C60)-containing macromolecules led to a sharp increase in the selectivity and permeability of the membrane. Transport properties of novel membranes were studied in pervaporation of n-butanol‒water mixtures to separate n-butanol from water admixture for further use of this alcohol as industrial solvent and biofuel. It was found that introduction up to 5 wt% star modifier increases the separation efficiency of membranes in dehydration of n-butanol (water content in the permeate reaches 99.9 wt% while pervaporation separation index comes up to 400 kg/m2h), which allows obtaining high-purity n-butanol.

AB - The problem of n-butanol ‒ water separation arises from the widespread interest to the search for alternative energy sources. To solve the problem by membrane technique, pervaporation membranes were developed on the basis of polyphenyleneisophthalamide modified with hybrid star macromolecules containing six arms of polystyrene and six arms of poly-tert-butyl methacrylate on the fullerene (C60) core. The structure was studied by scanning electron microscopy that reveal a tendency to form domains in the membranes modified by star macromolecules. Modification of the membrane by star fullerene (C60)-containing macromolecules led to a sharp increase in the selectivity and permeability of the membrane. Transport properties of novel membranes were studied in pervaporation of n-butanol‒water mixtures to separate n-butanol from water admixture for further use of this alcohol as industrial solvent and biofuel. It was found that introduction up to 5 wt% star modifier increases the separation efficiency of membranes in dehydration of n-butanol (water content in the permeate reaches 99.9 wt% while pervaporation separation index comes up to 400 kg/m2h), which allows obtaining high-purity n-butanol.

KW - Fullerene C60

KW - membrane

KW - n-butanol

KW - pervaporation

KW - polyamide

KW - star-shaped polymers

KW - PERFORMANCE

KW - POLYIMIDE MEMBRANES

KW - BIOFUELS

KW - POLYSTYRENE

KW - MIXED MATRIX MEMBRANES

KW - POLYMER

KW - POLY(M-PHENYLENE ISOPHTHALAMIDE) PMIA

KW - C-60

KW - NANOFILTRATION MEMBRANE

KW - PERVAPORATION

UR - http://www.scopus.com/inward/record.url?scp=85074008823&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/36b7c193-cb8e-33e7-aa9b-d92002aaef88/

U2 - 10.1080/1536383X.2019.1671366

DO - 10.1080/1536383X.2019.1671366

M3 - Article

VL - 28

SP - 54

EP - 60

JO - Fullerenes Nanotubes and Carbon Nanostructures

JF - Fullerenes Nanotubes and Carbon Nanostructures

SN - 1536-383X

IS - 1

Y2 - 1 July 2019 through 5 July 2019

ER -