The stereospecific polymerization of t‐butyl vinyl ether (tBVE) in polar and non‐polar solvents was studied. The steric structure of poly‐t‐butyl vinyl ether (PtBVE) was examined by IR spectra of and polyvinyl alcohol derived from (PtBVE). The syndiotactic part in PtBVE increased with increasing polarity of a solvent in low temperature polymerization. Methylene chloride containing a small amount of nitro‐compounds was the most suitable solvent for preparation of syndiotactic polymers. BF3·O(C2H5)2 had a tendency to promote both polymerizations giving isotactic as well as syndiotactic structure. Raising of polymerization temperature caused formation of atactic structures from both isotactic and syndiotactic sides.
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Higashimura et al. (1965) studied this question.
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