Optical analysis of the gel microparticles in the viscose

Abstract

and ultracentrifuging methods or by electron microscopy. Earlier investigations /1,2/ of GMP always included centrifuging combined with filtration so that the separation of the GMP appears to have been a necessary preliminary for the application of light-scatter and electron-microscopic methods. It is quite possible that the results were not devoid of experimental errors owing to the necessity for GMP separation which produces structural changes in the particles. Analysing the GMP directly in the viscose would be a more reliable method, e.g. from the turbidity spectrum of the polymer solution. Such a method has been evolved by V.I.Klenin and is used with good results for determining the GMP parameters in solutions of polyvinyl alcohol, cellulose acetate, and cellulose /3-6/. The relation has been established /5,6/ between the physieo-meehanical fibre characteristics and the parameters of the GMP system of the solutions of synthetic (polyvinyl chloride) and regenerated-cellulose (acetate) polymers. In the case of polyvinyl chloride fibre a distinct inversely proportional relation was found to exist between the fibre tenacity and the GMP size, and the