The melt processing behavior of polyvinyl alcohol (PVOH) acquired by polyvinyl acetate solution and suspension hydrolysis is studied. It is found that the PVOH obtained by suspension hydrolysis is much more suitable for melt processing because of the shape and size of the particles and of the chemical and morphological homogeneity. These advantages increase the practical importance of the suspension hydrolysis technology as compared to the solution.
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Doina Dimonie, Mihaela Chiriac, Alexandra Ciupitoiu, Iulia Pocsan. The Influence of the Particle Shape and Size on the Polyvinyl Alchohol Melt Processing, ESAFORM 2000, Third Conference on Material Forming, 11—14, April 2000, Stuttgart, Germany.