| 摘要 |
<p>The invention concerns a compatibilizing agent consisting of a basic polyolefin chain and polyamide grafts wherein: the grafts are bound to the basic chain by the radicals of a difunctional monomer (A) having a first function acting as activator in the polymerisation of lactams and a second unsaturated function, or capable of reacting with a reactive site of the basic polyolefin chain; the radicals of the unsaturated monomer (A) are fixed on the basic chain by grafting from its double bond or by reaction of its second function with a reactive site of the basic polyolefin chain. The invention also concerns a method for preparing said compatibilizing agents which consists, after preparing the basic chain containing the monomer having an activating function, in adding the lactam precursor of the grafts, a catalyst and heating to obtain anionic polymerisation of the lactam which develops from the activating function; then in optionally separating the compatibilizing agent and the polyamide which has been formed outside the grafts.</p> |
