| abstract |
A method of crosslinking polypropylene comprising: (a) (i) polypropylene, (ii) maleimide-functionalized monoazide and / or citraconimide-functionalized monoazide, and (iii) hydroquinone, hydroquinone derivative, benzoquinone, benzoquinone derivative, catechol, catechol A mixture of radical scavengers selected from the group consisting of derivatives, 2,2,6,6-tetramethylpiperidinooxy (TEMPO), TEMPO derivatives, and combinations thereof at a temperature in the range of 120-250 ° C. Treating to form a functionalized polypropylene; and (b) reacting the functionalized polypropylene with a peroxide at a temperature in the range of 150-350 ° C. |