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Linear low density polyethylenes and their blends : Part 1. Molecular characterization

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1002/pen.760270509
AuthorSearch for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada
FormatText, Article
Abstract
Ten commercial linear low‐density polyethylenes (LLDPE) were characterized by solution viscosity, size exclusion chromatography, SEC, and ¹³C nuclear magnetic resonance. The resins were copolymers of ethylene with butene, hexene, or octene. They were prepared in gas phase (with narrow or very broad molecular weight distribution), or in solution. The macromolecules were found to be linear. For all but the very broad molecular weight distribution resins the average comonomer sequence length was found to be 1; in the other case diad formation was observed. The weight average molecular weights calculated from SEC, and intrinsic viscosities agreed quite well. Mechanical degradation of LLDPE was observed during the solution viscosity measurements.
Publication date
PublisherWiley
In
  • Polymer Engineering and Science 27, no. 5: 359–366.
LanguageEnglish
Peer reviewedYes
NRC numberCNRC 25591
NRC-IGM86-102-284
NPARC number23004048
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Record identifier3fc4676e-080d-4dba-a0e4-ab3a32d9b04a
Record created2018-09-19
Record modified2020-03-17
Date modified: