Tetrachlorinated rubber: The addition of carbon tetrachloride to 1,4‐polybutadiene

Abstract
The iron chloride‐catalyzed radical chain addition of carbon tetrachloride to 1,4‐polybutadiene has been studied. Transparent film forming nonflammable polymers are obtained which contain 50–55% chlorine. Cyclization appears to accompany the addition of carbon tetrachloride as an integral part of the radical reaction.