TY - JOUR
T1 - PDMS grafting of mesoporous γ-alumina membranes for nanofiltration of organic solvents
AU - Tanardi, Cheryl
AU - Pinheiro de Melo, A.F.
AU - Nijmeijer, Arian
AU - Winnubst, Aloysius J.A.
PY - 2014
Y1 - 2014
N2 - In this paper grafting of mesoporous γ-alumina membranes with monovinyl terminated polydimethyl-
siloxane (PDMS), using 3-mercaptopropyltriethoxysilane (MPTES) as a linking agent, is described. The grafting performance of the organic moieties on γ-alumina powders was studied by FTIR. Contact angle measurements and solvent permeability tests were used to characterize the membrane properties. The results indicated that grafting reactions were successfully carried out. The toluene permeability of the membrane was reduced from 5.3 to 2.1 L/m2 h bar after grafting with the polymer. No degradation of the membrane material was observed after chemical stability tests in toluene for 6 days at room temperature and at elevated temperatures (up to 90 1C).
AB - In this paper grafting of mesoporous γ-alumina membranes with monovinyl terminated polydimethyl-
siloxane (PDMS), using 3-mercaptopropyltriethoxysilane (MPTES) as a linking agent, is described. The grafting performance of the organic moieties on γ-alumina powders was studied by FTIR. Contact angle measurements and solvent permeability tests were used to characterize the membrane properties. The results indicated that grafting reactions were successfully carried out. The toluene permeability of the membrane was reduced from 5.3 to 2.1 L/m2 h bar after grafting with the polymer. No degradation of the membrane material was observed after chemical stability tests in toluene for 6 days at room temperature and at elevated temperatures (up to 90 1C).
KW - METIS-309121
KW - IR-94180
U2 - 10.1016/j.memsci.2014.07.010
DO - 10.1016/j.memsci.2014.07.010
M3 - Article
SN - 0376-7388
VL - 469
SP - 471
EP - 477
JO - Journal of membrane science
JF - Journal of membrane science
ER -