| 摘要 |
<p>A method of free radical grafting of monomers onto a polypropylene resin, comprising the steps of: (i) mixing the polypropylene resin with an allylepoxy compound, a styrenic compound and a peroxide as an initiator, (ii) heating said mixture to a temperature which is higher than the melting point of the polypropylene resin and the decomposition temperature of said peroxide, at conditions of continuous mixing until a desired degree of grafting of the allylepoxy compound and the styrenic compound onto the polypropylene resin has been achieved, and (iii) cooling and comminuting the obtained composition. A grafted polypropylene composition being obtained by said method comprises an amount of glycidyl methacrylate of 0 to 10 % by weight and an amount of styrene of 0 to 10 % by weight, calculated on the polypropylene resin. The composition may be used as a compatibilizer in the manufacturing of polymer blends, as a polymer adhesion promotor, and in articles which require an improved printability.</p> |
