| 摘要 |
PURPOSE:To obtain the titled substance useful as a raw material for synthesizing an aromatic vinyl compound-containing polymer, having stability during storage and transportation, and easy handleability, comprising specific amounts of mono- and/or dibromostyrene, an aromatic vinyl compound and a polymerization inhibitor. CONSTITUTION:The titled composition comprising 100pts.wt. mono- and/or dibromostyrene, 20-3,000pts.wt., especially preferably 40-400pts.wt. aromatic vinyl compound, and 0.001-0.05pt.wt., preferably 0.03-0.02pt.wt. polymerization inhibitor. Styrene, alpha-methylstyrene, vinylnaphthalene, etc., are used as the aromatic vinyl compound. p-tert-Butyl catechol, hydroquinone, hydroquinone monomethyl ether, etc., are preferably used as the polymerization initiator.
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