摘要:
Homopolymers and copolymers of butylene oxide having a molecular weight of at least about 1 million are employed as drag reducing agents in nonaqueous liquids.
摘要:
Epoxides are polymerized in granular form which is easily processed. The polymerization occurs in a solvent system composed of significant portions of two different solvents.
摘要:
A novel composition of matter for catalyzing the polymerization of vicinal epoxides is formed by the reaction of a trialkylaluminum compound, phenothiazine, water, acetylacetone and a Lewis base selected from tetrahydrofuran and 1,4-dioxane.