MODIFIED POLYOLEFINS Russian patent published in 2013 - IPC C08F255/00 C08F255/02 C08F255/08 C08L51/06 C09J151/06 C09D151/06 C08F8/12 C08L43/04 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of grafting hydrolysable and cross-linkable groups onto polyolefins. Disclosed is a method of grafting hydrolysable silane groups onto a polyolefins, wherein if present, ethylene links make up less than 50% by weight of the total polyolefin, which involves reacting a polyolefin and an unsaturated silane of formula R"-CH = CH - Z (I) or R"-C = C - Z (ii), where Z is an electron acceptor moiety substituted with a -SiR_aR'_(3-a) group, R is a hydrolysable group; R' is a hydrocarbyl group containing 1-6 carbon atoms; a ranges from 1 to 3 inclusively; and R" is hydrogen or a group which demonstrates electron acceptor effect or any other activation effect with respect to the -CH=CH- or -C≡C- bond, or hydrolysate thereof in the presence of agents capable of generating free-radical active centres in the polyolefin, and the grafting reaction is carried out in the presence of a coagent which inhibits polymer decomposition as a result of beta-destruction in the presence of an agent which is capable of generating free-radical active centres in the polyolefin. Versions of using the obtained graft polyolefins are also disclosed.

EFFECT: high grafting efficiency.

21 cl, 20 tbl, 28 ex