TY - JOUR N2 - A method of manufacturing hydrogel coatings designed to increase the hydrophilicity of polyurethanes (PU) is presented. Coatings were obtained from polyvinylpyrrolidone (PVP) by free radical polymerisation. The authors proposed a mechanism of a two-step grafting - crosslinking process and investigated the influence of reagent concentration on the coating’s physical properties - hydrogel ratio (HG) and equilibrium swelling ratio (ESR). A surface analysis of freeze-dried coatings using scanning electron microscopy (SEM) showed a highly porous structure. The presented technology can be used to produce biocompatible surfaces with limited protein and cell adhesive properties and can be applied in fabrication of number of biomedical devices, e.g. catheters, vascular grafts and heart prosthesis. L1 - http://www.czasopisma.pan.pl/Content/84778/PDF/05-paper-Butruk.pdf L2 - http://www.czasopisma.pan.pl/Content/84778 PY - 2012 IS - No 4 December EP - 571 DO - 10.2478/v10176-012-0046-6 KW - polyurethanes KW - surface modification KW - surface hydrophilization KW - hydrogel A1 - Ciach, Tomasz A1 - Butruk, Beata A1 - Trzaskowski, Maciej PB - Polish Academy of Sciences Committee of Chemical and Process Engineering DA - 2012 T1 - Polyvinylpyrrolidone-Based Coatings for Polyurethanes – The Effect of Reagent Concentration on Their Chosen Physical Properties SP - 563 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/84778 T2 - Chemical and Process Engineering ER -