| 摘要 |
PURPOSE:To produce a functional polymer having flame retardancy and useful as a metal scavenger, by polymerizing a styrene derivative containing a 1,2- dihalogenoethyl group. CONSTITUTION:Divinylbenzene or its derivatives is reacted with a halogenating agent comprising deactivated halogen molecules to obtain a 1,2-dihalogenoethyl group-containing styrene derivative of formula I (wherein R is H, a 1-10C alkyl, aryl or aralkyl, and X1 and X2 are each a halogen). This styrene derivative is polymerized at 20-120 deg.C in an inert liquid (e.g., n-pentane) in the presence of a polymerization initiator (e.g., azobisisobutyronitrile) to obtain a linear high-MW (MW 1,000-2,000,000) polymer comprising polymer units of formula II. |
