Showing papers by "Glyn O. Phillips published in 1966"

Photochemical Initiation of Free Radicals in Cotton Cellulose

Abstract: Cotton cellulose of the Deltapine variety, spun into 7s/3 yarns, was purified hy extraction with hot ethanol. followed 1Iy hoilÍ11,g in dilute sodium hydroxide solution. precautions being takcn to minimi7(’ oxidation hy air. The sodium, hydroxide sulution was remoBed hy washing thycc·llnlc~~e with distilled water; tills was followed 1~)~ souring with dilute acetic acid. neutralizing with dilute ammonium hydroxide, and again washing with di.,tjJ1cd, water ,’1151., ., After conditioning the cellulose ut 21 °C and fji~/ ’ kl 1, the resulting product had a moisture content of’ahout ~r/ and a viscosity-average molecu.lar. weight of about 700.000 ( 12 ~ : ’