title: Infrared spectral analysis of extractables from poly(etherurethane urea) (PEUU) elastomers.
abstract: Poly(etherurethane urea) (PEUU) elastomers when employed as biomedical devices may be susceptible to extraction upon implantation. Four PEUU elastomers containing a single PEUU formulation, but varying in terms of their additives, were subjected to an in vitro extraction procedure. The additives in the PEUUs were Methacrol 2138 F at 5 wt% and Santowhite powder at 1 wt% levels. Only 1-2 wt% of the PEUUs was extractable with methanol. Fourier transform infrared spectroscopy (FT-IR) furnished qualitative and quantitative information on the extractables. The extractables consisted of a PEUU component that on the average was richer in soft segment than the bulk PEUU, and the two additives, Methacrol 2138 F and Santowhite powder.
authors.affiliation: Department of Macromolecular Science, Case Western Reserve University, Cleveland, OH 44106.
authors.forename: M
authors.initials: M
authors.lastname: Renier
authors.forename: J M
authors.initials: JM
authors.lastname: Anderson
authors.forename: A
authors.initials: A
authors.lastname: Hiltner
authors.forename: G A
authors.initials: GA
authors.lastname: Lodoen
authors.forename: C R
authors.initials: CR
authors.lastname: Payet
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry*; D006018:Glycols / Q000302:isolation & purification; D006860:Hydrogen Bonding; D000432:Methanol; D011140:Polyurethanes / Q000737:chemistry*; D012997:Solvents; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D001672:Biocompatible Materials; D006018:Glycols; D011140:Polyurethanes; D012997:Solvents; C115016:polyetherurethane; C047554:polytetramethylene glycol; D000432:Methanol