Resonant infrared pulsed laser deposition of thin biodegradable polymer films

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

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    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) mum light at macropulse fluences of 7.8 and 6.7 J/cm(2), respectively. Under these conditions, a 0.5-mum 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
    JournalApplied Physics A: Materials Science & Processing
    Volume74
    Issue number1
    Pages (from-to)123-125
    ISSN0947-8396
    DOIs
    Publication statusPublished - 2002

    Cite this

    Bubb, D. M., Toftmann, B., Haglund Jr., R. F., Horwitz, J. S., Papantonakis, M. R., McGill, R. A., Wu, P. W., & Chrisey, D. B. (2002). Resonant infrared pulsed laser deposition of thin biodegradable polymer films. Applied Physics A: Materials Science & Processing, 74(1), 123-125. https://doi.org/10.1007/s003390101010