The influence of alkyl end-groups on the miscibility of hyperbranched polymers with polyolefins

Ibrahim Sendijarevic, Anthony J. McHugh, Joshua A. Orlicki, Jeffrey S. Moore

Research output: Contribution to journalArticlepeer-review

Abstract

Polyetherimide (PEI) hyperbranched polymers (HBPs) with alkyl terminated endgroups were blended with linear low density polyethylenes (LLDPEs) and extruded as thin films. The effects of length and concentration of the alkyl groups on the miscibility of the extruded films were examined using confocal and scanning electron microscopy (SEM). Surface properties of the blends were further characterized using contact angle measurements in de-ionized water. Results indicate that migration of PEI HBPs to the film surfaces is predominantly driven by the surface energy differences of HBPs and polyolefins. Moreover, the addition of PEI HBPs to LLDPEs has a negligible effect on the processing properties of LLDPEs.

Original languageEnglish (US)
Pages (from-to)2393-2400
Number of pages8
JournalPolymer Engineering and Science
Volume42
Issue number12
DOIs
StatePublished - Dec 2002

ASJC Scopus subject areas

  • General Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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