Resonant infrared pulsed laser deposition of thin biodegradable polymer films

D. M. Bubb, B. Toftmann, R. F. Haglund, J. S. Horwitz, M. R. Papantonakis, R. A. McGill, P. W. Wu, D. B. Chrisey

Research output: Contribution to journalReview articlepeer-review

35 Scopus citations

Abstract

Thin films of the biodegradable polymer poly(DL-lactide-co-glycolide) (PLGA) were deposited using resonant infrared pulsed laser deposition (RIR-PLD). The output of a free-electron laser was focused onto a solid target of the polymer, and the films were deposited using 2.90 (resonant with O - H stretch) and 3.40 (C - H) μm light at macropulse fluences of 7.8 and 6.7 J/cm 2, respectively. Under these conditions, a 0.5-μm thick film can be grown in less than 5 min. Film structure was determined from infrared absorbance measurements and gel permeation chromatography (GPC). While the infrared absorbance spectrum of the films is nearly identical with that of the native polymer, the average molecular weight of the films is a little less than half that of the starting material. Potential strategies for defeating this mass change are discussed.

Original languageEnglish (US)
Pages (from-to)123-125
Number of pages3
JournalApplied Physics A: Materials Science and Processing
Volume74
Issue number1
DOIs
StatePublished - 2002

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

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