On the Structure and Dissolution Properties of Poly(p-phenylene terephthalamide): Effect of Solvent Composition

Poly-p-phenylenetherephthalamide (PpPTA) is a high performance, semi flexible polymer. Commercially it is mainly sold in the form of fibres under the trade names Twaron and Kevlar. The polymerization is performed in an amide(NMP)-salt(CaCl2) solution and afterwards spun into fibres from a sulphuric acid solution. In the thesis the dissolution...