ANIONIC COPOLYMERIZATION OF CONJUGATED DIENES AND VINYL ARENES IN THE PRESENCE OF ALKYL ETHERS OF TETRAHYDROPYRANYL METHANOL

摘要

Process for the preparation of a polymer by thepolymerization of:(A) from 50 to 100 percent by weight of at least onediene monomer,(B) from 0 to 50 percent by weight of at least oneethylenically unsaturated monomer,the above polymerization being carried out in an inertsolvent in the presence of a catalytic system whichcomprises:(a) at least one anionic initiator essentially consist-ing of a Lithium derivative,(b) at least one modifier belonging to the group oftetrahydropyranyl ethers.