ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
A partially hydrolyzed ethylene/vinyl acetate (EVA) copolymer was modified through the covalent binding of a heparin-complexing polymer, in order to improve its blood compatibility. Two different heparinizable polymeric materials (EVAPA I and II) were obtained by a two-step reaction between an ethylene/vinyl alcohol/vinyl acetate (EVALVA) terpolymer and a poly-(amido-amine) (N2LL) using either hexamethylene diisocyanate (HMDI) or 1,1'-carbonyldimidazole (CDI) as bifunctional agents. EVALVA terpolymer was prepared by a homogeneous saponification process, and the percentage of hydrolysis was determined by an analytical method. EVAPA I and II syntheses were followed by FT-IR/ATR (Fourier Transform Infrared/Attenuated Total Reflection) spectroscopy.
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1992.021931204
