Isobutyl vinyl ether fractions

Isobutyl vinyl ether [109-53-5] M 100.2, b 108-110 , d 0.768, n 1.398. Washed three times with equal volumes of aqueous 1 % NaOH, dried with CaH2, refluxed with sodium for several hours, then fractionally distd from sodium. 

A Ziegler catalyst system composed of diethylaluminum chloride and titanium chloride in toluene at 0 C has also been claimed useful for preparing vinyl ether-MA copolymers. In typical experiments, the reactions were terminated after 3 h by adding methyl alcohol, and the product was purified by precipitation with excess alcohol. The yields vary with proportion of comonomers, 98% for a 7 1 mole fraction of isobutyl vinyl ether-MA, 92% for a 2-4 1 mole fraction, but only 44% for a 1 1.2 mole fraction. Similar... 

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