Molecular Weight Distribution of Polyacrylonitrile Polymer Grafted onto Cotton and Solubility Behaviour of the Graft Copolymer in Cadoxen

Abstract

<span style="font-size:11.0pt;line-height:115%; font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family:="" "times="" new="" roman";mso-fareast-theme-font:minor-fareast;mso-hansi-theme-font:="" minor-latin;mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;="" mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">Graft copolymerization of acrylonitrile with different molecular weights of the grafted chains has been carried out employing different techniques of initiation, viz. eerie ion, ϒ-irradiation, Fe²⁺-H₂O₂ and anionic grafting. The grafted chains have been separated from the cellulose backbone and their molecular weight distribution has been determined through a fractionation technique employing dimethyl formamide and methanol as solvent and non-solvent respectively. The solubility behaviour in cadoxen of the samples grafted by different initiation techniques has been explained in relation to the molecular weight of the grafted chains.</span>