Coupled-PDMS grafted mesoporous γ-alumina membranes for solvent nanofiltration

Research output: Contribution to journalArticleAcademicpeer-review

14 Citations (Scopus)

Abstract

In this paper grafting of mesoporous c-alumina membranes with hydride terminated polydimethylsiloxane is described. Vinyltriethoxysilane is used as linking agent and tetrakis(vinyldimethylsiloxy)silane as a coupling agent, to create a dense network structure that is grafted in the ceramic pores. Grafting performance of the organic moieties on c-alumina powders was analyzed by FTIR and TGA. The results indicate that grafting reactions were successfully carried out. Contact angle analysis on the grafted membranes showed that grafting occurs on the c-alumina layer and that the resulting membrane surface had a water contact angle of 108 . From permeability and rejection tests using Sudan Black in toluene, ethyl acetate or isopropanol, the use of a coupling agent was found to result in a more dense network structure grafted in the gamma alumina pores. This resulted in a higher rejection for nanofiltration of solvents but at the cost of a lower solvent permeability, when compared with PDMS-grafted alumina membranes where no coupling of PDMS was applied.
Original languageEnglish
Pages (from-to)223-229
JournalSeparation and purification technology
Volume169
DOIs
Publication statusPublished - 2016

Fingerprint

Nanofiltration
Aluminum Oxide
Alumina
Membranes
Coupling agents
Contact angle
Silanes
2-Propanol
Toluene
Polydimethylsiloxane
Hydrides
Powders
Water

Cite this

@article{2a4bf2aa71244041822d2b19bf6d38e7,
title = "Coupled-PDMS grafted mesoporous γ-alumina membranes for solvent nanofiltration",
abstract = "In this paper grafting of mesoporous c-alumina membranes with hydride terminated polydimethylsiloxane is described. Vinyltriethoxysilane is used as linking agent and tetrakis(vinyldimethylsiloxy)silane as a coupling agent, to create a dense network structure that is grafted in the ceramic pores. Grafting performance of the organic moieties on c-alumina powders was analyzed by FTIR and TGA. The results indicate that grafting reactions were successfully carried out. Contact angle analysis on the grafted membranes showed that grafting occurs on the c-alumina layer and that the resulting membrane surface had a water contact angle of 108 . From permeability and rejection tests using Sudan Black in toluene, ethyl acetate or isopropanol, the use of a coupling agent was found to result in a more dense network structure grafted in the gamma alumina pores. This resulted in a higher rejection for nanofiltration of solvents but at the cost of a lower solvent permeability, when compared with PDMS-grafted alumina membranes where no coupling of PDMS was applied.",
author = "Cheryl Tanardi and Arian Nijmeijer and Winnubst, {Aloysius J.A.}",
year = "2016",
doi = "10.1016/j.seppur.2016.05.057",
language = "English",
volume = "169",
pages = "223--229",
journal = "Separation and purification technology",
issn = "1383-5866",
publisher = "Elsevier",

}

Coupled-PDMS grafted mesoporous γ-alumina membranes for solvent nanofiltration. / Tanardi, Cheryl; Nijmeijer, Arian; Winnubst, Aloysius J.A.

In: Separation and purification technology, Vol. 169, 2016, p. 223-229.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Coupled-PDMS grafted mesoporous γ-alumina membranes for solvent nanofiltration

AU - Tanardi, Cheryl

AU - Nijmeijer, Arian

AU - Winnubst, Aloysius J.A.

PY - 2016

Y1 - 2016

N2 - In this paper grafting of mesoporous c-alumina membranes with hydride terminated polydimethylsiloxane is described. Vinyltriethoxysilane is used as linking agent and tetrakis(vinyldimethylsiloxy)silane as a coupling agent, to create a dense network structure that is grafted in the ceramic pores. Grafting performance of the organic moieties on c-alumina powders was analyzed by FTIR and TGA. The results indicate that grafting reactions were successfully carried out. Contact angle analysis on the grafted membranes showed that grafting occurs on the c-alumina layer and that the resulting membrane surface had a water contact angle of 108 . From permeability and rejection tests using Sudan Black in toluene, ethyl acetate or isopropanol, the use of a coupling agent was found to result in a more dense network structure grafted in the gamma alumina pores. This resulted in a higher rejection for nanofiltration of solvents but at the cost of a lower solvent permeability, when compared with PDMS-grafted alumina membranes where no coupling of PDMS was applied.

AB - In this paper grafting of mesoporous c-alumina membranes with hydride terminated polydimethylsiloxane is described. Vinyltriethoxysilane is used as linking agent and tetrakis(vinyldimethylsiloxy)silane as a coupling agent, to create a dense network structure that is grafted in the ceramic pores. Grafting performance of the organic moieties on c-alumina powders was analyzed by FTIR and TGA. The results indicate that grafting reactions were successfully carried out. Contact angle analysis on the grafted membranes showed that grafting occurs on the c-alumina layer and that the resulting membrane surface had a water contact angle of 108 . From permeability and rejection tests using Sudan Black in toluene, ethyl acetate or isopropanol, the use of a coupling agent was found to result in a more dense network structure grafted in the gamma alumina pores. This resulted in a higher rejection for nanofiltration of solvents but at the cost of a lower solvent permeability, when compared with PDMS-grafted alumina membranes where no coupling of PDMS was applied.

U2 - 10.1016/j.seppur.2016.05.057

DO - 10.1016/j.seppur.2016.05.057

M3 - Article

VL - 169

SP - 223

EP - 229

JO - Separation and purification technology

JF - Separation and purification technology

SN - 1383-5866

ER -