@misc{gomes_membranes_for_2005, author={Gomes, D., Pereira Nunes, S., Peinemann, K.-V.}, title={Membranes for gas separation based on poly(1-trimethyl-1-propyne)-silica nanocomposites}, year={2005}, howpublished = {journal article}, doi = {https://doi.org/10.1016/j.memsci.2004.05.015}, abstract = {butane permeability and butane/methane selectivity was significantly higher when compared to the nanocomposite membranes prepared by sol–gel process. The addition of fillers with 50% of surface modification with hydrophobic groups (Si–C8H17 and Si–C16H33) seems not to lead to a significant increase of the butane/methane selectivity and butane permeability when compared to the silica with hydrophilic surface groups, probably because of the unfavorable polymer/filler interaction, leading to an agglomeration of the long n-alkyl groups at the surfaceof the polymer. An increase of butane permeability up to six-fold of unfilled polymer was obtained.}, note = {Online available at: \url{https://doi.org/10.1016/j.memsci.2004.05.015} (DOI). Gomes, D.; Pereira Nunes, S.; Peinemann, K.: Membranes for gas separation based on poly(1-trimethyl-1-propyne)-silica nanocomposites. Journal of Membrane Science. 2005. vol. 246, no. 1, 13-25. DOI: 10.1016/j.memsci.2004.05.015}}