## Abstract Creep studies were carried out on a range of homopolymers and copolymers of polyethylene with wellβdefined molecular weight and branch content. The creep data were analyzed in terms of two thermally activated processes acting in parallel and the effects of molecular weight and branch co
Influence of molecular weight and branch content on the fracture behaviour of polyethylene
β Scribed by S. -W. Tsui; R. A. Duckett; I. M. Ward
- Publisher
- Springer
- Year
- 1992
- Tongue
- English
- Weight
- 613 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0022-2461
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## Abstract The crystallization and morphology of some metallocene polyethylenes with wellβcontrolled molecular weight and branching content were investigated by DSC, WAXD, PLM and SALS. The banded spherulites observed in linear PE are not seen in crystallization of branched PEs. The small spheruli
A method of determining the distribution of branching in a polymer is developed employing limiting viscosity numbers (intrinsic viscosity), gel permeation chromatography (GPC), and absolute molecular weight determinations of fractions of the whole polymer. A molecular weight calibration of the GPC c