Abstract
Powders of poly (vinyl alcohol) with different degrees of polymerisation and hydrolysis have been reacted with phosphorous acid in homogeneous conditions. The influence of experimental conditions on the substitution degree has been investigated. Analytical, spectral, viscosimetric and thermogravimetric methods were used to analyse the influence of tacticity, crystallinity and degree of polymerisation and hydrolysis of parent poly (vinyl alcohol) on the properties of the phosphorilated products. Keywords: phosphorilated poly (vinyl alcohol), degree of hydrolysis, degree of polymerisation, tacticity