Tuning Morphology and Melting Temperature in Polyethylene Films by MAPLE

Hyuncheol Jeong, Mithun Chowdhury, Yucheng Wang, Melda Sezen-Edmonds, Yueh Lin Loo, Richard Alan Register, Craig B. Arnold, Rodney D. Priestley

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The control of structure and thermal stability in semicrystalline polymer films remains an important challenge in applications ranging from solar energy devices to packaging films. Here, we demonstrate the ability to dramatically alter the morphology and melting temperature (Tm) of low-molecular-weight linear polyethylene (PE) by employing an innovative vapor-assisted deposition process termed matrix assisted pulsed laser evaporation (MAPLE). We report the ability to tune Tm of PE films by 20 °C by simply adjusting the deposition temperature during MAPLE processing. This unique capability stems from the ability of MAPLE to exploit confined crystallization during thin film growth. In addition, we demonstrate the ability to exploit MAPLE to design PE films that exhibit the same Tm as their melt-crystallized analogues but have an ∼25% higher degree of crystallinity. Our investigation offers new insights into how confinement effects in polymer crystallization can be utilized in the emerging field of polymer film fabrication by MAPLE to control structure and key material properties of semicrystalline polymer films.

Original languageEnglish (US)
Pages (from-to)512-519
Number of pages8
JournalMacromolecules
Volume51
Issue number2
DOIs
StatePublished - Jan 23 2018

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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