Novel view at hybrid membranes containing star macromolecules using neutron scattering and pervaporation dehydration of acetic acid

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Novel view at hybrid membranes containing star macromolecules using neutron scattering and pervaporation dehydration of acetic acid. / Polotskaya, Galina ; Pulyalina, Alexandra; Lebedev, Vasiliy; Torok, Guliy; Rudakova, Daria; Vinogradova, Ludmila.

In: Materials and Design, Vol. 186, 108352, 15.01.2020.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{6f2519e4fe2e4d6ca5347b9156d95143,

title = "Novel view at hybrid membranes containing star macromolecules using neutron scattering and pervaporation dehydration of acetic acid",

abstract = "Hybrid membranes based of polyphenylene oxide matrix and star macromolecules (up to 5 wt%) containing six polystyrene and six poly-2-vinylpyridine arms attached to a common fullerene C60 center were prepared and successfully used for pervaporation separation of acetic acid – water mixtures. The peculiarities of the hybrid membrane structure and properties were studied by small-angle neutron scattering in two states (dry and swollen in deuterated acetic acid). It was established that star macromolecules are non-uniformly distributed in the matrix and form aggregates; they increase in the size up to ~60% during swelling of membranes in deuterated acetic acid. In pervaporation, the total flux through the membrane rises with increasing both the star macromolecule content in membrane and water concentration in the feed. Separation factor reaches its greatest value when the hybrid membrane contains 5 wt% star macromolecules.",

keywords = "Pervaporation, MEMBRANES, pervaporation dehydration, Pervaporation, Neutron scattering, membrane, Polyphenylene oxide, Star macromolecules, Acetic acid – water mixtur, Acetic acid – water mixture, Membrane",

author = "Galina Polotskaya and Alexandra Pulyalina and Vasiliy Lebedev and Guliy Torok and Daria Rudakova and Ludmila Vinogradova",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2020",

month = jan,

day = "15",

doi = "10.1016/j.matdes.2019.108352",

language = "English",

volume = "186",

journal = "Materials and Design",

issn = "0261-3069",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Novel view at hybrid membranes containing star macromolecules using neutron scattering and pervaporation dehydration of acetic acid

AU - Polotskaya, Galina

AU - Pulyalina, Alexandra

AU - Lebedev, Vasiliy

AU - Torok, Guliy

AU - Rudakova, Daria

AU - Vinogradova, Ludmila

PY - 2020/1/15

Y1 - 2020/1/15

N2 - Hybrid membranes based of polyphenylene oxide matrix and star macromolecules (up to 5 wt%) containing six polystyrene and six poly-2-vinylpyridine arms attached to a common fullerene C60 center were prepared and successfully used for pervaporation separation of acetic acid – water mixtures. The peculiarities of the hybrid membrane structure and properties were studied by small-angle neutron scattering in two states (dry and swollen in deuterated acetic acid). It was established that star macromolecules are non-uniformly distributed in the matrix and form aggregates; they increase in the size up to ~60% during swelling of membranes in deuterated acetic acid. In pervaporation, the total flux through the membrane rises with increasing both the star macromolecule content in membrane and water concentration in the feed. Separation factor reaches its greatest value when the hybrid membrane contains 5 wt% star macromolecules.

AB - Hybrid membranes based of polyphenylene oxide matrix and star macromolecules (up to 5 wt%) containing six polystyrene and six poly-2-vinylpyridine arms attached to a common fullerene C60 center were prepared and successfully used for pervaporation separation of acetic acid – water mixtures. The peculiarities of the hybrid membrane structure and properties were studied by small-angle neutron scattering in two states (dry and swollen in deuterated acetic acid). It was established that star macromolecules are non-uniformly distributed in the matrix and form aggregates; they increase in the size up to ~60% during swelling of membranes in deuterated acetic acid. In pervaporation, the total flux through the membrane rises with increasing both the star macromolecule content in membrane and water concentration in the feed. Separation factor reaches its greatest value when the hybrid membrane contains 5 wt% star macromolecules.

KW - Pervaporation

KW - MEMBRANES

KW - pervaporation dehydration

KW - Pervaporation

KW - Neutron scattering

KW - membrane

KW - Polyphenylene oxide

KW - Star macromolecules

KW - Acetic acid – water mixtur

KW - Acetic acid – water mixture

KW - Membrane

UR - https://www.sciencedirect.com/science/article/pii/S0264127519307907

UR - http://www.scopus.com/inward/record.url?scp=85075263106&partnerID=8YFLogxK

U2 - 10.1016/j.matdes.2019.108352

DO - 10.1016/j.matdes.2019.108352

M3 - Article

VL - 186

JO - Materials and Design

JF - Materials and Design

SN - 0261-3069

M1 - 108352

ER -

ID: 50510899