| Title | Degradation studies of some polymeric biomaterials: Polypropylene PP and polyvinylidene difluoride (PVDF) |
| Publication Type | Book |
| Year of Publication | 2007 |
| Authors | Silva, RA, Silva, PA, Carvalho, ME |
| Series Title | Materials Science ForumMater Sci Forum |
| Volume | 539-543 |
| Number of Pages | 573 - 576 |
| City | Vancouver |
| ISBN Number | 02555476 (ISSN); 0878494286 (ISBN); 9780878494286 (ISBN) |
| Keywords | Biomaterials, Degradation, Degradation of polypropylene and polyvinylidene difiuoride, Fourier transform infrared spectroscopy, FTIR spectroscopy, Monofilament sutures, Monofilaments, Oxidation induction time, Polypropylenes, Redox reactions, Thermal analysis, Thermoanalysis |
| Abstract | Degradation studies of PP and PVDF monofilaments were carried out using a special chamber for several periods of time. One set of the samples was exposed to a 0.9 % NaCl solution and to ultraviolet radiation at 83° C and the other set involved the exposition in air under the same conditions of irradiation and temperature. Scanning Electron Microscopy (SEM) analysis showed direct evidence of PP degradation. Meanwhile, the PVDF monofilaments showed no apparent evidence of degradation under the same conditions. Differential Thermal Analysis (DTA) curves, FTIR spectra and Oxidation Induction Time experiments confirmed the results of SEM Analysis. |
| URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-38349001114&partnerID=40&md5=dd3d3421ddc8dd59229658509de1a9ed |
