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The mechanical properties and resistance to urinary encrustation of sequential-interpenetrating polymer networks (IPNs) composed of polyurethane (PU) and polymethylmethacrylate (PMMA), have been described. Mechanical properties were determined using tensile testing and dynamic mechanical analysis, whereas resistance to encrustation was examined using an in vitro model for encrustation simulating in...
Mechanical and rheological properties of polyacrylic acids (PAA) determine their suitability for pharmaceutical applications. Both oscillating rheometry and, more recently, texture profile analysis (TPA) are used for the characterisation of pharmaceutical gels (Craig et al 1994, Jones et al 1996). This study examines the effects of formulation factors on the mechanical and rheological properties...
No currently available biomaterial exhibits all of the necessary properties for optimum ureteral stenting. This study reports the manufacture and characterisation of interpenetrating polymeric (PU/PMMA) networks (sIPN) which have been designed as ureteral stent biomaterials.PMMA was prepared by mixing methylmethacrylate (MMA; 99.5% w/w) and azobisisobutyronitrile (AIBN; 0.5% w/w). The solution was...
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