Shirasu porous glass membranes

Liu, R., Ma, G.H., Meng, F.-T., and Su, Z.-G., Preparation of uniform-sized PLA microcapsules by combining Shirasu Porous Glass membrane emulsification technique and multiple emulsion-solvent evaporation method, J. Contrail. Ret, 103, 31, 2005. 

Production of Monodispersed Emulsions Using Shirasu Porous Glass Membranes... 

Hatate, Y., Ohta, H., Uemura, Y., Ijichi, K., and Yoshizawa, H., Preparation of monodispersed polymeric microspheres for toner particles by the Shirasu porous glass membrane emulsification technique, J. Appl. Polym. Set, 64, 1107-1113, 1997. 

Membrane emulsification techniques allow preparation of highly monodisperse microgel particles. The Shirasu porous glass (SPG) membrane with a pore size of 0.1-18pm was used to prepare uniformly sized water droplets containing chitosan in organic solvent, and polymer chains were crosslinked by glutaraldehyde [26],... 

Veldhuis, G. (2006). Personal communication. NanoMi BV, see www.nanomi.com. Vladisavljevic, G.T. and Schubert, H. (2002). Preparation and analysis of oil-in-water emulsions with a narrow droplet size distribution using Shirasu-Porous-Glass (SPG) membranes. Desalination 144, 167-172. 

The most suitable membrane for emulsification is the so-called Shirasu porous glass (SPG) membrane. This membrane can be fabricated with a wide range of mean pore sizes (0.05-20 xm), with a uniform pore size distribution (PSD), and with a wall porosity between 50 and 60%. Hydrophobic modification of SPG membrane can be easily carried out by surface coating with silicone resin. 

Vladisavljevic, G.T., Shimizu, M., and Nakashima, T., Permeability of hydrohiUc and hydrophobic Shirasu-porous-glass (SPG) membranes to pure Uquids and its microstructure, J. Membr. Sci., 250 (1-2), 69-77, 2005. 

TABLE 6 1 Microporous membranes other than Shirasu porous glass (SPG) used by different investigators for membrane emulsification... 

Yamazaki N, Yuyama H, Nagai M, Ma GH, Omi S. 2002. A comparison of membrane emulsification obtained using SPG (Shirasu porous glass) and FIFE [poly(tetraflu oroethylene)] membranes. / Dispersion Sci Technol 23 279-292. 

Commercial PGMs prepared using the phase separation method include porous Vycor glass and Shirasu porous glass (SPG). The main difference between the two is the chemical composition of the membranes, which greatly influences their physico-chemical properties. 

Kukizaki, M. and M. Goto, Demulsification of water-in-oil emulsions by permeation through Shirasu-porous-glass (SPG) membranes. Journal of Membrane Science, 2008.322(1) 196-203.. 

CVD chemical vapour deposition DFT density functional theory MR membrane reactor PGM porous glass membrane PVD physical vapour deposition SPG Shirasu porous glass TR traditional reactor... 

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