Modification of (co)polymers employing organic peroxides.

摘要

Organic (co)polymers are modified by contacting them with an organic peroxide and decomposing the peroxide. To decompose also saturated (co)polymers use is made of an organic peroxide having the general formula: R-(O-O-CH1-CR2=CR3R4)N, wherein N is 1, 2 or 3, R1 is H, C1-C4 alkyl or C2-C4 alkylene; R2, R3 and R4 are, independently, H or C1-C4 alkyl; two of the substituents R1-R4 together may form C3-C12 alkylene; and, when N is 1, R is an optionally hydroxyl substituted C4-C18 T. alkyl, P-menth-8-YL, C5-C18 T.alkenyl, 1-vinylcyclohexyl or a group of the formula: -C(CH3)2-C6HJ(5-M)-R5(M), wherein M is 0, 1 or 2 and R5 is isopropenyl or 2-hydroxyisopropyl, when N is 2, R is a C8-C12 alkylene or alkynylene group having a tertiary structure at both ends, or a group having the formula: -(C)CH3)2)2-C6H(4-X)-R5(X), wherein X is 0 or 1; and when N is 3, R is 1,2,4-or 1,3,5-triisopropylbenzene-alpha, alpha sec -triyl, i.a., 3-allylperoxy-3,3-dimethylpropene according to a preferred embodiment the modification is carried out in the presence of a coagent, whereby the advantageous polymer properties, such as adhesion to polar materials, are further enhanced.