Stereogular polymers of methyl, iso‐butyl and tert‐butyl vinyl ethers

Development of new catalysts allowed the synthesis of more highly stereoregular poly(methyl vinyl ethers) (PMVE). PMVE properties are markedly dependent on the degree of stereoregularity. Infrared is employed to establish an index of stereoregularity. This index is correlated with nuclear magnetic resonance spectra, density, stiffness, and tensile properties. A method of characterizing a catalyst system by the stereoregularity distribution obtained in the polymer product is presented. Data is also presented for stereoregular polymers of iso‐butyl and tert‐butyl vinyl ethers.