More particularly, it is concerned with a process for obtaining a highly purified polar vinyl compound from a mixture of a polar vinyl compound, {HEAD ~ impurities} such as polymerization inhibiting substances and starting {TAIL ~ materials} used in preparation of the polar vinyl compound, that is, from a polar vinyl compound containing impurities  
More particularly , it is concerned with a process for obtaining a highly purified polar vinyl compound from a mixture of a polar vinyl compound , { HEAD ~ impurities } such as polymerization inhibiting substances and starting { TAIL ~ materials } used in preparation of the polar vinyl compound , that is , from a polar vinyl compound containing impurities
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