Phase inversion (chemistry) small pore membranes such as nanofiltration and reverse osmosis. Phase inversion (chemistry) Phase inversion is a chemical phenomenon exploited in the fabrication of artificial membranes. It is performed by removing the solvent from a liquid-polymer solution, leaving a porous, solid membrane. Phase inversion is a common method to form filtration membranes, which are typically formed using artificial polymers. The method of phase inversion is highly dependent on the type of polymer used and the solvent used to dissolve the polymer. Phase inversion can be carried out through one of four typical methods: The rate at which phase inversion occurs and
A Mixture of Frailties laughter, wise and perceptive about life and art, capable of touching the sorrowful as well. In short, from Canada, a thoroughly rewarding writer with a fine new book." A Mixture of Frailties A Mixture of Frailties, published by Macmillan in 1958, is the third novel in The Salterton Trilogy by Canadian novelist Robertson Davies. The other two novels are "Tempest-Tost" (1951) and "Leaven of Malice" (1954). The series was also published in one volume as The Salterton Trilogy in 1986. The trilogy revolves around the residents of the imaginary town of Salterton, Ontario. The protagonist, Monica Gall, is a working-class