Warianty tytułu
Języki publikacji
Abstrakty
The potential erosive effect of enzymes on polycarbonate urethanes has been evaluated. Polyurethanes were obtained in two-stage polyaddition process which involved diisocyanate (TMDI) and poly(carbonate)diol (Desmophen DC2200) The isocyanate prepolymers were crosslinked with carbohydrates (sucrosc, glucose, mannitol, sorbitol) to improve the ability of the enzyme to degrade polymer. Obtained samples were treated by lipase from Candida antarctica (Novozvm 735). Surface characteristic changes after enzymatic degradation were observed using confocal microscopy. The roughness parameters were determined. Also evaluation the degree of changes of the free surface energy was done. In addition, the thermal analysis of pre-degraded and post-degraded residue was performed.
Czasopismo
Rocznik
Tom
Strony
141-149
Opis fizyczny
Bibliogr. 12 poz., rys., tab.
Twórcy
autor
- Rzeszów University of Technology, Powstańców Warszawy Av. 6, 35-959 Rzeszów, Poland, nogaj@prz.edu.pl
Bibliografia
- [1] SarkarD., Lopina S.T., Polym. Degr. Stab., 2007, 92,1994.
- [2] Gu J.D., Int. Biodeterior. Biodegrad., 2003, 52, 69.
- [3] Howard G.D, International Biodeterioration & Biodégradation, 2002, 49, 245.
- [4] Azevedo H.S., Reis R.L., In: Reis R.L., Roman J.S., editors. “Biodegradable Systems in Tissue Engineering and Regenerative Medicine”, CRC Press, 2005, chapter 12.
- [5] Kloss J., de Souza F.S.M., da Silva E.R., Dionisio J.A., Akcelrud L., Zawadzki S.F.. Macromol. Symp., 2006,245/246,651.
- [6] Kloss J.R., Pedrozo T.H., Follmann H.D.M., Peralta-Zamora P., Dionisio J.A., Akcelrud L., Zawadzki S.F., Ramos L.P., Mater. Sci. Eng. C, 2009, 29, 470.
- [7] Takahara A., Hadano M., Yamaguchi T., Otsuka H., Kidoaki S., Macromol. Syp., 2005, 224, 207.
- [8] Hatakeyama H., J. Therm. Anal. Cal., 2002, 70, 755.
- [9] Nakamura K„ Nishimura Y., Zetterlund P., Hatakeyama T., Hatakeyama H., Thermochemica Acta, 1996, 282/283,433.
- [10] Umare S.S.. Chandure A.S., Chem. Eng. J., 2008, 142, 65.
- [11] Tang Y.W., Labow R.S.. Santerre J.P., J. Biomed. Mater. Res. A, 2001,56, 516.
- [12]Yamamoto N., Nakayama A., Oshima M., Kawasaki N., Aiba S.I.. Reactive & Functional Polymers, 2007, 67, 1338.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-BPC2-0009-0024