| 摘要 |
PURPOSE:To provide the subject copolymer comprising specific structural units in a specific ratio, having a specific mol.wt., and useful as a polymer-modifying agent or polymer-compatibilizing agent to give molding resin compositions having high impact resistance. CONSTITUTION:The objective copolymer comprising 80-99wt.% of styrenic structural units of formula I, 0.5-19wt.% of maleic anhydride structural units of formula II and 0.5-19wt.% of glycidyl methacrylate structural units of formula III and having a number-average mol.wt. of 5000-100000. |
