Effect of Zeolitic Imidazole Framework-8 nanocrystals on hydrocarbon permselective Poly(dimethylsiloxane) membrane as probed by small-angle neutron scattering

Pradeep K. Prajapati; Ankit M. Kansara; Vinod K. Aswal; Puyam S. Singh

doi:10.1016/j.polymer.2018.04.001

Effect of Zeolitic Imidazole Framework-8 nanocrystals on hydrocarbon permselective Poly(dimethylsiloxane) membrane as probed by small-angle neutron scattering

Pradeep K. Prajapati
, Ankit M. Kansara
, Vinod K. Aswal
, Puyam S. Singh

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

6 Scopus citations

Abstract

Hydrocarbon permselective membranes comprising of Poly (dimethylsiloxane) (PDMS) with Zeolitic Imidazole Framework (ZIF)-8 nanocrystals have been explored. ZIF-8—PDMS membranes of different ZIF-8 loadings were prepared in different solvents. The polymer chain conformations were observed by Ornstein-Zernike model fit to their small-angle neutron scattering profiles. The chain conformations were found to be varied for the membranes with different ZIF-8 loadings. The Debye-Anderson-Brumberger model showed larger scattering domains for the ZIF-8—PDMS membranes prepared in toluene than the membranes prepared in n-heptane. The membrane (toluene) of optimal ZIF-8 loading exhibited ∼60% increment of hydrocarbon permeability but ∼2% increment of N₂ permeability as against ∼300% increment of hydrocarbon permeability and >30% of N₂ permeability for the membrane (n-heptane) of the similar ZIF-8 loading. This different phenomenon of hydrocarbon permeability enhancement for the membranes with the ZIF-8 loading can be attributed to their different membrane nanostructures.

Original language	English
Pages (from-to)	96-105
Number of pages	10
Journal	Polymer
Volume	143
DOIs	https://doi.org/10.1016/j.polymer.2018.04.001
State	Published - 9 May 2018
Externally published	Yes

Keywords

Crosslinking
Poly(dimethylsiloxane)
ZIF-8 nanocrystals

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/j.polymer.2018.04.001

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@article{d23ba57b49a346648fa30187c8cd0127,

title = "Effect of Zeolitic Imidazole Framework-8 nanocrystals on hydrocarbon permselective Poly(dimethylsiloxane) membrane as probed by small-angle neutron scattering",

abstract = "Hydrocarbon permselective membranes comprising of Poly (dimethylsiloxane) (PDMS) with Zeolitic Imidazole Framework (ZIF)-8 nanocrystals have been explored. ZIF-8{\textemdash}PDMS membranes of different ZIF-8 loadings were prepared in different solvents. The polymer chain conformations were observed by Ornstein-Zernike model fit to their small-angle neutron scattering profiles. The chain conformations were found to be varied for the membranes with different ZIF-8 loadings. The Debye-Anderson-Brumberger model showed larger scattering domains for the ZIF-8{\textemdash}PDMS membranes prepared in toluene than the membranes prepared in n-heptane. The membrane (toluene) of optimal ZIF-8 loading exhibited ∼60\% increment of hydrocarbon permeability but ∼2\% increment of N2 permeability as against ∼300\% increment of hydrocarbon permeability and >30\% of N2 permeability for the membrane (n-heptane) of the similar ZIF-8 loading. This different phenomenon of hydrocarbon permeability enhancement for the membranes with the ZIF-8 loading can be attributed to their different membrane nanostructures.",

keywords = "Crosslinking, Poly(dimethylsiloxane), ZIF-8 nanocrystals",

author = "Prajapati, \{Pradeep K.\} and Kansara, \{Ankit M.\} and Aswal, \{Vinod K.\} and Singh, \{Puyam S.\}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = may,

day = "9",

doi = "10.1016/j.polymer.2018.04.001",

language = "English",

volume = "143",

pages = "96--105",

journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Effect of Zeolitic Imidazole Framework-8 nanocrystals on hydrocarbon permselective Poly(dimethylsiloxane) membrane as probed by small-angle neutron scattering

AU - Prajapati, Pradeep K.

AU - Kansara, Ankit M.

AU - Aswal, Vinod K.

AU - Singh, Puyam S.

PY - 2018/5/9

Y1 - 2018/5/9

N2 - Hydrocarbon permselective membranes comprising of Poly (dimethylsiloxane) (PDMS) with Zeolitic Imidazole Framework (ZIF)-8 nanocrystals have been explored. ZIF-8—PDMS membranes of different ZIF-8 loadings were prepared in different solvents. The polymer chain conformations were observed by Ornstein-Zernike model fit to their small-angle neutron scattering profiles. The chain conformations were found to be varied for the membranes with different ZIF-8 loadings. The Debye-Anderson-Brumberger model showed larger scattering domains for the ZIF-8—PDMS membranes prepared in toluene than the membranes prepared in n-heptane. The membrane (toluene) of optimal ZIF-8 loading exhibited ∼60% increment of hydrocarbon permeability but ∼2% increment of N2 permeability as against ∼300% increment of hydrocarbon permeability and >30% of N2 permeability for the membrane (n-heptane) of the similar ZIF-8 loading. This different phenomenon of hydrocarbon permeability enhancement for the membranes with the ZIF-8 loading can be attributed to their different membrane nanostructures.

AB - Hydrocarbon permselective membranes comprising of Poly (dimethylsiloxane) (PDMS) with Zeolitic Imidazole Framework (ZIF)-8 nanocrystals have been explored. ZIF-8—PDMS membranes of different ZIF-8 loadings were prepared in different solvents. The polymer chain conformations were observed by Ornstein-Zernike model fit to their small-angle neutron scattering profiles. The chain conformations were found to be varied for the membranes with different ZIF-8 loadings. The Debye-Anderson-Brumberger model showed larger scattering domains for the ZIF-8—PDMS membranes prepared in toluene than the membranes prepared in n-heptane. The membrane (toluene) of optimal ZIF-8 loading exhibited ∼60% increment of hydrocarbon permeability but ∼2% increment of N2 permeability as against ∼300% increment of hydrocarbon permeability and >30% of N2 permeability for the membrane (n-heptane) of the similar ZIF-8 loading. This different phenomenon of hydrocarbon permeability enhancement for the membranes with the ZIF-8 loading can be attributed to their different membrane nanostructures.

KW - Crosslinking

KW - Poly(dimethylsiloxane)

KW - ZIF-8 nanocrystals

UR - https://www.scopus.com/pages/publications/85045075023

U2 - 10.1016/j.polymer.2018.04.001

DO - 10.1016/j.polymer.2018.04.001

M3 - Article

AN - SCOPUS:85045075023

SN - 0032-3861

VL - 143

SP - 96

EP - 105

JO - Polymer

JF - Polymer

ER -

Effect of Zeolitic Imidazole Framework-8 nanocrystals on hydrocarbon permselective Poly(dimethylsiloxane) membrane as probed by small-angle neutron scattering

Abstract

Keywords

ASJC Scopus subject areas

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