Polymer Technology
In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres.
High molecul ar weight polymers on dissolving gives solution of very low viscosity
Swelling tendency or solubility of polymers in a particular solvent decreases with increase in molecular weight of the solvent
Polymers having more aliphatic character are more soluble in aliphatic solvents, while those polymers having more aromatic character are more soluble in aromatic solvents
Greater the degree of cross-linking in the polymer, lesser is its solubility
EXAMIANS