Artículos de revistas
Ultrafiltration Membranes From Pvdf/pmma Blends
Registro en:
Journal Of Membrane Science. , v. 73, n. 1, p. 25 - 35, 1992.
3767388
10.1016/0376-7388(92)80183-K
2-s2.0-0027109522
Autor
Nunes S.P.
Peinemann K.V.
Institución
Resumen
Asymmetric membranes for ultrafiltration were obtained from PVDF/PMMA blends. Addition of 1% PMMA to the casting solution increases the water permeability 14-fold without loss of retention. Pore size distribution, evaluated by a modified bubble point test, showed a large increase in number of pores with size between 10 and 30 nm. The addition of PMMA also increases the size of finger-like cavities as shown by scanning electron microscopy. © 1992. 73 1 25 35 U015232027; MRC; Medical Research Council Lonsdale, The growth of membrane technology (1982) J. Membrane Sci., 10, pp. 81-181 Strathmann, Membrane separation processes (1981) J. Membrane Sci., 9, pp. 121-189 Cabasso, Membranes (1987) Encyclopedia of Polymer Science and Engineering, pp. 509-579. , J. Kroschnitz, John Wiley & Sons, New York, NY Kesting, (1985) Synthetic Polymeric Membranes, , John Wiley & Sons, New York,NY Munari, Bottino, Capannelli, Casting and performance of PVDF based membranes (1983) J. Membrane Sci., 16, pp. 181-193 Bottino, Capannelli, Munari, Factors affecting the structure and properties of asymmetric polymeric membranes (1986) Membranes and Membrane Processes, pp. 163-178. , E. Drioli, M. Nagaki, Plenum Press, New York, NY Shih, Yeh, Yasuda, Morphology of microporous PVDF membranes studied by gas permeation and scanning electron microscopy (1990) J. Membrane Sci., 50, pp. 299-317 Stengaard, Preparation of asymmetric microfiltration membranes and modification of their properties by chemical treatment (1988) J. Membrane Sci., 36, pp. 257-275 Onishi, Seita, Koyama, (1988) Hydrophilic, porous PVDF membrane and process for its preparation, , Eur. Patent 0344312A1, Jan Stengaard, (1987) Permeable, porous, polymeric membrane with hydrophilic character, methods for preparing said membranes and their use, , Eur. Patent 0257635A2, Aug Benzinger, Robinson, (1982) porous vinylidene fluoride polymer membrane and process for its preparation, , US Patent 4384047, Jan Bailey, Mc Cune, (1972) Microporous vinylidene fluoride polymer and process of making same, , US Patent 3642668, Jan Joffe, Degen, Baltusis, (1987) Microporous membrane structure and method of making, , Eur. Patent 02545000A2 Iwata, Matsuda, Preparation and properties of novel environment-sensitive membranes prepared by graft polymerization onto a porous membrane (1988) J. Membrane Sci., 38, pp. 185-199 Ellinghorst, Niemöller, Vierkotten, Radiation initiated grafting of polymer films (1983) Rad. Phys. Chem., 22, pp. 635-642 Uragami, Naito, Suginara, Studies on synthesis and permeability of special polymer membranes. 39. Permeation characteristics and structure of polymer blend membranes from PVDF and PEG (1981) Polym. Bull., 4, p. 617 Uragami, Fujimoto, Sugihara, Studies on syntheses and permeabilities of special polymer membranes. 28. Permeation characteristics and structure of interpolymer membranes from poly(vinylidene fluoride) and poly(styrene sulfonic acid) (1980) Desalination, 34, pp. 311-323 Kasi, Koyama, (1988) Method for production of porous membrane, , US Patent 4772440, Sept Howang, Iwamoto, Seno, Structure and gas permeabilities of PVDF/oligodimethylsiloxane blend membrane (1988) J. Appl. Polym. Sci., 36, pp. 1925-1931 Yang, Rogers, Selective permeation of a gas mixture in surface modified PMMA/PVDF poly-blend membranes (1989) AIChE Symp. Ser., 85, pp. 11-17 Steinhauser, Scholz, Hübner, Ellinghorst, The role of porous supports for pervaporation composite membranes (1990) Proc. ICOM 90, Chicago, 1, pp. 367-369 Hahn, Herrmann-Schönherr, Wendorff, Evidence for a crystal-amorphous interface in PVDF and PVDF/PMMA blends (1987) Polymer, 28, pp. 201-208 Strathmann, Kock, Amar, Baker, The formation mechanism of asymmetric membranes (1975) Desalination, 16, pp. 179-203 Strathmann, Kock, The formation mechanism of phase inversion membranes (1977) Desalination, 21, pp. 241-255 Frommer, Matz, Rosenthal, Mechanism of formation of reverse osmose membranes (1971) Ind. Eng. Chem. Prod. Res. Dev., 10, p. 193 Liabastre, Orr, An evaluation of pore structure by mercury penetration (1978) J. Colloid Int. Sci., 64, p. 1 Cuperus, Characterization of ultrafiltration membranes (1990) PhD Dissertation, , University of Twente, Netherlands Erbe, Blockierungsphänomene bei Ultrafiltern (1932) Kolloid Z., 59, p. 195 Capennelli, Vigo, Mundari, Ultrafiltration membranes — characterization methods (1983) Journal of Membrane Science, 15, pp. 289-313 Mey-Marom, Katz, Measurement of active pore size distribution of microporous membranes - A new approach (1986) J. Membrane Sci., 27, p. 119 Siqueira, Galembeck, Nunes, Adhesion and morphology of PVDF/PMMA and compatibilized PVDF/PS interfaces (1991) Polymer, 32, pp. 990-998