ABSTRACT

Rapid advances in the strategies to design and fabricate synthetic membranes with desired permeability, selectivity, chemo-physical property, multifunctionality, and controlled structure for targeted applications have been seen in the past decades. Common techniques used for porous polymeric membrane fabrication include sintering, stretching, track-etching, phase inversion, and electrospinning. Among these, sintering, stretching, track-etching, and electrospinning are useful in preparing microltration (MF) membranes, whereas membranes with a very wide range of pore size covering from MF to ultraltration (UF) can be obtained through phase inversion. On the other hand, nonporous membranes used for applications such as nanoltration (NF), reverse osmosis (RO), and gas separation are normally composite

15.3.2 Effects of Intrinsic Properties of Polymer Solution ...................... 538 15.3.2.1 Polymer Concentration and Dope Viscosity ................ 538 15.3.2.2 Electrical Conductivity ................................................540 15.3.2.3 Surface Tension ............................................................540 15.3.2.4 Solvent ..........................................................................540