Premium
RF‐Plasma Deposition and Surface Characterization of Stable (COOH)‐Rich Thin Films from Cyclic L ‐Lactide
Author(s) -
Pistillo Bianca Rita,
Detomaso Loredana,
Sardella Eloisa,
Favia Pietro,
d'Agostino Riccardo
Publication year - 2007
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.200731912
Subject(s) - x ray photoelectron spectroscopy , contact angle , fourier transform infrared spectroscopy , lactide , materials science , polymer , polymer chemistry , plasma polymerization , polymerization , infrared spectroscopy , glow discharge , lactic acid , spectroscopy , chemical engineering , analytical chemistry (journal) , nuclear chemistry , chemistry , plasma , composite material , organic chemistry , physics , quantum mechanics , biology , bacteria , engineering , genetics
Radiofrequency (13.56 MHz) glow discharges fed with vapors of (3 S )‐ cis ‐3,6‐dimethyl‐1,4‐dioxane‐2,5‐dione (cyclic L ‐lactide) were used to deposit stable dense COOH groups. The L ‐lactide is the solid intermediate compound formed during the conventional polymerization reaction of poly lactic acid (PLA), a biodegradable polymer used in biomaterials. The coatings have been characterized by means of X‐ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT‐IR) and water contact angle (WCA) measurements. The percentage of surface carboxyl groups was determined by the Toluidine Blue O (TBO) test.