| 摘要 |
<p>Described are polypropylene molding compositions which have surprisingly good physical properties in combination with flame retardancy, which include copolymers represented by formula (I), wherein n is > 1, P is isotactic or syndiotactic polypropylene, and S is a grafted side chain having brominated monomeric units of formula (II), wherein x = 1 to 4, R1 is H or CH3, and R2 is H or a C1-4 lower alkyl group. Polymer blends including such graft copolymers and methods for making such flame retardant polymer compositions are also described.</p> |
