Long-chain branched polymers and methods for their production (LONG-CHAIN BRANCHED POLYMERS AND THEIR PRODUCTION)

摘要

B) a second monomer having at least one Ziegler-natable polymerizable bond, and c) at least one monomer selected from the group consisting of: i) at least 6, or at least 7 , Ii) a monomer other than a linear chain, or iii) a mixture thereof, wherein the third monomer has at least two Ziegler-natable polymerizable bonds; d) at least one carbon-carbon unsaturated bond per number average molecule, e) a species having a forming backbone derived from the same monomer but having at least two Ziegler-natable polymerizable bonds has an activation viscosity of greater than 1 kcal / (Ea), f) a crystallinity of from 10 to about 50%, and g) an M _z / M _{w of} at least 1.7, and a process for their preparation. Melt processability and other properties.