LONG-CHAIN BRANCHED POLYMERS AND PROCESS FOR PREPARING LONG-CHAIN BRANCHED POLYMERS

摘要

FIELD: chemistry of polymers. SUBSTANCE: claimed invention describes new polymer and process for preparing polymers containing long chain linear side branchings. Long chain linear branchings are located at frequency of less than 5 branchings per 1000 carbon atoms of main chains. Some branchings have molecular weight which is greater than critical value of the molecular weight for intertwining polymer chains. Polymer containing long chain linear branchings are prepared by introducing alpha-olefin macromolecule in the polymerization process in solution or suspension in the presence of metallocene catalyst. Polymers have superb processibility in melt and superb mechanical properties of solid polymers. Polymers are suitable to be processed into various products by standard methods. EFFECT: more efficient preparation process.