6533b85afe1ef96bd12b9541

RESEARCH PRODUCT

Influence of molecular parameters on the elongational behaviour of different polyethylenes and their blends

F. P. La MantiaAntonino ValenzaDomenico Acierno

subject

chemistry.chemical_compoundMaterials sciencechemistryMolar mass distributionThermodynamicsPolyethyleneBranching (polymer chemistry)Long chain

description

Elongational data on a large number of polyethylene samples with different structures and their blends are presented in order to evaluate the influence of the molecular weight and molecular weight distribution for a given degree of long chain branching. The elongational viscosity rises with the number of branch points and also with molecular weight and molecular weight distribution. Simple relationships between elongational viscosity at a given deformation and molecular parameters are presented.

https://doi.org/10.1007/978-3-642-49337-9_126