Title :
Polyurethane nanofibers by electrospinning for biomedical applications
Author :
Vlad, S. ; Ciobanu, C. ; Macocinschi, D. ; Filip, D. ; Butnaru, M. ; Gradinaru, L.M. ; Nistor, A.
Author_Institution :
Petru Poni Inst. of Macromolecular Chem., Iasi, Romania
Abstract :
In this study the electrospinning technique was used to prepare biocompatible polyurethane membranes. The polyurethane for preparation of nanofibers was synthesized from hexamethylenediisocyanate (HDI), polytetramethylene ether glycol (PTMEG) and butanediol (BD) filled with different proportion of hydroxypropyl cellulose (HPC), by polyaddition in dimethylformamide (DMF) as solvent. Molar ratio of Polyether: Diisocyanate: Glycol of 1:4:3, gives a concentration of urethane groups about of 3×10-3 mole/g. The structure of polymers was confirmed by FT-IR analysis. The morphological structure was analyzed by SEM method. TGA and DSC were used for thermal characterization. Contact angles measurements in connection with the study for biological behaviour was performed.
Keywords :
Fourier transform spectra; biomedical materials; contact angle; differential scanning calorimetry; electrospinning; infrared spectra; nanofibres; polymer fibres; polymer structure; scanning electron microscopy; DSC; FT-IR analysis; SEM method; TGA; biocompatible polyurethane membranes; biomedical applications; butanediol; contact angle measurements; diisocyanate; dimethylformamide; electrospinning; hexamethylenediisocyanate; hydroxypropyl cellulose; morphological structure; polyether; polymer structure; polytetramethylene ether glycol; polyurethane nanofibers; thermal characterization; urethane groups; Biomedical measurements; Biomembranes; Nanobioscience; Needles; Plastics; Surface morphology; Temperature measurement; Electrospinning; biomedical applications; hydroxypropyl cellulose; polyetherurethane;
Conference_Titel :
Semiconductor Conference (CAS), 2010 International
Conference_Location :
Sinaia
Print_ISBN :
978-1-4244-5783-0
DOI :
10.1109/SMICND.2010.5650650
