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Deposition of Biodegradable Polycaprolactone Coatings Using an In‐line Atmospheric Pressure Plasma System
Author(s) -
Tynan John,
Ward Pat,
Byrne Gerry,
Dowling Denis. P.
Publication year - 2009
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.200930310
Subject(s) - polycaprolactone , materials science , atmospheric pressure plasma , coating , contact angle , fourier transform infrared spectroscopy , chemical engineering , atmospheric pressure , polymer , deposition (geology) , polyester , degradation (telecommunications) , composite material , plasma , telecommunications , oceanography , physics , quantum mechanics , sediment , computer science , engineering , biology , geology , paleontology
Polycaprolactone (PCL) is a biodegradable and bioresorbable polymer with applications ranging from use in packaging to medical sutures. In this study, the use of an atmospheric pressure plasma to deposit plasma polymerised PCL (P‐PCL) coatings from a PCL diol precursor is evaluated. Fourier transform infrared spectroscopy demonstrated the retention of PCL functional groups in the deposited coating. Changes in coating surface energy were monitored with time after deposition using the contact angle technique. The rate of degradation of 500 nm thick P‐PCL coatings was assessed after immersion in a phosphate‐buffered saline (PBS) solution at 37 °C. It was observed that slower rates of P‐PCL coating degradation were obtained for coatings deposited at higher applied powers and lower precursor flow rates.