Abstract
The main aim of this research was to study the effects of size and concentration of the hard segments on thermal stability, solvent resistance, hardness and drug delivery applications in polyurethane-urea (PUU) elastomers. Four diamines having different aliphatic chains, were synthesized and used as chain extenders (CE) to synthesize PUU. NCO/OH ratio was changed from 2-2.5 to study the effect of concentration of hard segments. Structure, morphology, thermal stability, hardness, solvent resistance, drug delivery and mechanical properties of polyurethane-urea elastomers were examined by means of fourier transform infrared spectroscopy (FTIR), wide-angle X-ray diffraction (WAXD), thermogravimetric analysis (TGA), shore durometer, UV/Vis spectrophotometer and universal testing machine (UTM) respectively.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
