Poly(carbonate urea) urethane
In Based on Amino Acid Compounds Synthesis of New Poly(Ester-Imide)s and Poly(Imide-Urethane)s Derivatives
... of poly(ester-imide)s based on diacids by direct condensation solution polymerization was carried out by condensation initiators such as DMF/Py/ ...of poly(imide-urethane)s was that, in comparison ...
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Fabrication, structure and properties of three-dimensional biodegradable poly(glycerol sebacate urethane) scaffolds
... Large, three-dimensional, porous poly(glycerol sebacate urethane) (PGSU) scaffolds were fabricated via a solvent-based synthesis approach followed by freeze-drying and curing. The scaffolds showed highly ...
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Hydrophobic poly(azomethine-urethane) Film for Detection of Fe 3+ Ions in Aqueous Media
... A new film chemosensor based on poly(azomethine-urethane) was easily fabricated by dip- coating technique and used as fluorescence probe. The photophysical properties of the fluorescent film sensor were ...
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Corrosion Resistance of UV-Cured Urethane Acrylate Coatings Containing Dibutyl-Substituted Poly(3,4- propylenedioxythiophene) as a Corrosion Inhibitor
... oxide (photoinitiator, 0.5 wt%), and urethane acrylate were predissolved in THF and stirred for 1 hour. After the solvent was removed by rotary evaporator, the liquid prepolymer mixtures were applied on the Q235 ...
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The Third Order Nonlinear Optical behavior of Poly Ether Urethane
... Poly (ether) urethane close/open cell (PEUCC/PEUOC) has been prepared by using in situ polymerization approach. The third-order optical nonlinearities of dissolved samples in DMF were characterized by ...
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STRENGTH ANALYSIS OF POLY-URETHANE
... coated urethane was developed. Poly-urethane materials are considered to be cheap in comparison to other materials with higher strength and ...
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Design of Modified Electro-Spun Poly Urethane Nanofiber Film using Chemical Method
... Tissue engineering is defined as the designing and engineering of structures to rebuild and repair a body damaged tissue. Scaffolding Poly urethane (PU) has shown good biocompatibility and biodegradable ...
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Preparation and Characterization of Some Magnetic Nanocomposites of Biodegradable Polyurethane Based on (S)-Histidine
... Optically active co-poly(ester amide urethane)s were prepared in three stages from chemical reactions. Two new optically active acids were synthesized from the reaction of (s)-histidine with adipoyl ...
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The Effect of Interfacial Interactions on a Structure and Properties of Polyurethane Elastomer/Poly(Vinyl Chloride) Blends
... with poly(vinyl chloride) component independently from preparation techniques ...polar urethane groups content in elastomer main chain reduces compati- bility of the components of corresponding polymer sys- ...
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Electrode Effects on Polyurethane Soft Actuator
... A polymer soft actuator is under investigation using a poly urethane elasto- mer film that bends by means of an applied voltage, which is based on the electrostriction. Bending experiments were performed ...
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Injectable and compression-resistant low-viscosity polymer/ceramic composite carriers for rhBMP-2 in a rabbit model of posterolateral fusion: a pilot study
... This pilot study was designed to answer the question whether injectable, settable, and compression-resistant low-viscosity poly(ester urethane)/ceramic composite grafts augmented with rhBMP-2 could promote ...
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Effect of Different Salts on P(VdC co AN)Gel Polymer Electrolytes for Li –Rechargeable Batteries
... of poly (vinylidene chloride – co-acrylonitrile) as a host polymer with plasticizer ethylene carbonate (EC) containing different dopant salts such as lithium tetra chloride(LiClO 4 ), lithium ...
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High strength in-situ biocementation of soil by calcite precipitating locally isolated ureolytic bacteria
... calcium and urea was monitored. This crystal growth was monitored over time by video recording the ureolytic reaction on a microscopic slide. The crystals also were examined through SEM. It was found that two ...
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Kinetics of calcite precipitation by ureolytic bacteria under aerobic and anaerobic conditions
... Given the potential for anaerobic conditions in subsurface environments, screening experiments were performed to as- sess the capability of S. pasteurii to grow and/or increase pH in CMM − in the presence of NO − 3 , SO ...
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Urea Amperometric Biosensors Based on Nanostructured Polypyrrole and Poly Ortho Phenylenediamine
... and poly ortho- phenylenediamine ...mM urea was ...to urea than biosensor without PPy (Pt/POPDA/urease bio- ...of urea concentrations—from ...
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In Situ Graphene Oxide Reinforced Poly(urea-formaldehyde) Microencapsulation of Epoxy
... loaded poly(urea- formaldehyde) microcapsules have produced by easy and cost-effective one step in-situ emulsion polymerization method without emulsifier ...
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Synthesis and Properties of Fumed Silicas Modified with Mixtures of Poly(methylphenylsiloxane) and Dimethyl Carbonate
... with poly(methylphenylsi- loxane) and dimethyl carbonate was performed by IR ...with poly(methylphenylsyloxane) at 200˚C, 250˚C and 300˚C (spectra 3 - ...
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Electrospinning of poly(butylene-carbonate):Effect of Solvents on the Properties of the Nanofibers Film
... [2]. Poly(butylene carbonate) (PBC), a new biodegradable polyester[11], has a similar backbone structure with PCL, just the methyl group connected with carbonyl is substituted by an oxygen ...
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A drug eluting poly(trimethylene carbonate)/poly(lactic acid)-reinforced nanocomposite for the functional delivery of osteogenic molecules
... followed by UV crosslink and solvent extraction (for remov- ing propylene carbonate). Based on the established method, we first integrated icaritin-loaded PLA fibers into PTMC and monitored its in vitro release, ...
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Characterisation of calcium carbonate formed by Bacillus sphaericus via fermentation of urea
... and urea [18], ...waste urea from chicken manure has the potential to substitute synthetic urea used in conventional ...calcium carbonate precipitation (MICCP) has emerged as rather promising ...
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