Poly (vinyl methylether) liquid phase and aqueous solution null from high purity vinyl methylether

摘要

(57) Abstract The amorphous colorless poly (vinyl methylether whose impurity cross-level is low from refinement vinyl methylether monomer) the liquid of the polymer and the manner which produces the aqueous solution are disclosed. As for said polymer the relatively high molecular weight, it is and possesses molecular weight distribution, there are no times existence of the impurity resolution easily with cause. The manner which is chosen from the steam - liquid separation method, the solid-state - liquid separation method, and the group which consists of its combination is adopted to refinement of monomer, from the 20 the impurity is removed at temperature of the range of approximately 30. The aqueous solution is prepared by the devolatizing of the composition solution of the refinement vinyl methylether monomer polymerization. The solid-state polymer is prepared poly (vinyl methylether) by heating the aqueous solution. The amorphous poly (vinyl methylether) the polymer is suitable for especially adhesive application.