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 Woman Is a Weathercock Collier in 1829. An edition based on a copy of the first quarto in the Folger Shakespeare Library was published in 1950, edited by William Peery. Commentators like Peery have called "A Woman is a Weathercock" a remarkable achievement for a first-time dramatist who was not yet 22 – and ascribed this to the practical experience Field had amassed performing on the stage since the age of 11 or 12. Collier said: ""A Woman is a Weathercock" and its sequel "Amends for Ladies" are the productions of no ordinary poet: in comic scenes Field excels Massinger ... and in those