Open Access. Powered by Scholars. Published by Universities.®

Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 13 of 13

Full-Text Articles in Engineering

Ftir Studies Of Ionic Interactions In Blends, Robert Weiss Dec 2015

Ftir Studies Of Ionic Interactions In Blends, Robert Weiss

Robert Weiss

No abstract provided.


Supercritical Carbon Dioxide Aided Preparation Of Conductive Polyurethane-Polypyrrole Composites, Robert Weiss Dec 2015

Supercritical Carbon Dioxide Aided Preparation Of Conductive Polyurethane-Polypyrrole Composites, Robert Weiss

Robert Weiss

Conductive polyurethane (PU) foams were prepared using a two-step procedure. First, PU foams were impregnated with the oxidant I2 from a scCO2 solution. Subsequently, the foams were subjected to pyrrole vapor, which polymerized within the foam in the presence of the oxidant. The reduced form of iodine as a result of the oxidative polymerization of pyrrole functions as a dopant. The conductivities of the foams ranged from 10−7 to 10−2 S/cm and the foams were flexible and not brittle. The concentration of conductive polypyrrole, i.e. the PPy–I2 charge-transfer complex, needed to achieve a conductivity of 10−4–10−3 S/cm was about 22% …


Supercritical Carbon Dioxide Aided Preparation Of Conductive Polyurethane-Polypyrrole Composites, Robert Weiss Dec 2015

Supercritical Carbon Dioxide Aided Preparation Of Conductive Polyurethane-Polypyrrole Composites, Robert Weiss

Robert Weiss

Conductive polyurethane (PU) foams were prepared using a two-step procedure. First, PU foams were impregnated with the oxidant I2 from a scCO2 solution. Subsequently, the foams were subjected to pyrrole vapor, which polymerized within the foam in the presence of the oxidant. The reduced form of iodine as a result of the oxidative polymerization of pyrrole functions as a dopant. The conductivities of the foams ranged from 10−7 to 10−2 S/cm and the foams were flexible and not brittle. The concentration of conductive polypyrrole, i.e. the PPy–I2 charge-transfer complex, needed to achieve a conductivity of 10−4–10−3 S/cm was about 22% …


Tissue Specific Shrna Delivery: A Novel Approach For Gene Therapy In Cancer, Shilenath Ghatak, Viacent Hascall, Franklin Berger, Maria Penas, Celestia Davis, Esmaiel Jabbari, Xuezhong He, James Norris, Yujing Dan, Roger Markwaid, Suniti Misra Jan 2015

Tissue Specific Shrna Delivery: A Novel Approach For Gene Therapy In Cancer, Shilenath Ghatak, Viacent Hascall, Franklin Berger, Maria Penas, Celestia Davis, Esmaiel Jabbari, Xuezhong He, James Norris, Yujing Dan, Roger Markwaid, Suniti Misra

Esmaiel Jabbari

No abstract provided.


Release Characteristics Of A Model Plasmid Dna Encapsulated In Biodegradable Poly(Ethylene Glycol Fumarate)/Acrylamide Hydrogel Microspheres, Esmaiel Jabbari Jan 2015

Release Characteristics Of A Model Plasmid Dna Encapsulated In Biodegradable Poly(Ethylene Glycol Fumarate)/Acrylamide Hydrogel Microspheres, Esmaiel Jabbari

Esmaiel Jabbari

No abstract provided.


Mapping The Concentration Profile At The Poly(Vinyl Chloride)/Poly(Ethyl Methacrylate) Interface, Esmaiel Jabbari, Nikolaos Peppas Jan 2015

Mapping The Concentration Profile At The Poly(Vinyl Chloride)/Poly(Ethyl Methacrylate) Interface, Esmaiel Jabbari, Nikolaos Peppas

Esmaiel Jabbari

No abstract provided.


Temperature Effects On Interdiffusion At Glassy/Rubbery Interfaces, Esmaiel Jabbari, Nikolaos Peppas Jan 2015

Temperature Effects On Interdiffusion At Glassy/Rubbery Interfaces, Esmaiel Jabbari, Nikolaos Peppas

Esmaiel Jabbari

No abstract provided.


Molecular Weight And Polydispersity Effects On Interdiffusion At The Interface Between Polystyrene And Poly(Vinyl Methyl Ether), Esmaiel Jabbari, Nikolaos Peppas Jan 2015

Molecular Weight And Polydispersity Effects On Interdiffusion At The Interface Between Polystyrene And Poly(Vinyl Methyl Ether), Esmaiel Jabbari, Nikolaos Peppas

Esmaiel Jabbari

No abstract provided.


Evidence Of Mucoadhesion By Chain Interpenetration At A Poly (Acrylic Acid)/Mucin Interface Using Atr-Ftir Spectroscopy, Esmaiel Jabbari, Natalie Wisniewski, Nikolaos Peppas Jan 2015

Evidence Of Mucoadhesion By Chain Interpenetration At A Poly (Acrylic Acid)/Mucin Interface Using Atr-Ftir Spectroscopy, Esmaiel Jabbari, Natalie Wisniewski, Nikolaos Peppas

Esmaiel Jabbari

No abstract provided.


Quantitative Measurement Of Interdiffusion At Polymer–Polymer Interfaces With Tem/Eds And Eels, Esmaiel Jabbari, Nikolaos Peppas Jan 2015

Quantitative Measurement Of Interdiffusion At Polymer–Polymer Interfaces With Tem/Eds And Eels, Esmaiel Jabbari, Nikolaos Peppas

Esmaiel Jabbari

No abstract provided.


Comparison Of Interdiffusion At Polystyrene–Poly(Vinyl Methyl Ether) And Polystyrene–Poly(Isobutyl Vinyl Ether) Interfaces, Esmaiel Jabbari, Nikolaos Peppas Jan 2015

Comparison Of Interdiffusion At Polystyrene–Poly(Vinyl Methyl Ether) And Polystyrene–Poly(Isobutyl Vinyl Ether) Interfaces, Esmaiel Jabbari, Nikolaos Peppas

Esmaiel Jabbari

No abstract provided.


Morphology And Structure Of Microcapsules Prepared By Interfacial Polycondensation Of Methylene Bis(Phenyl Isocyanate) With Hexamethylene Diamine, Esmaiel Jabbari Jan 2015

Morphology And Structure Of Microcapsules Prepared By Interfacial Polycondensation Of Methylene Bis(Phenyl Isocyanate) With Hexamethylene Diamine, Esmaiel Jabbari

Esmaiel Jabbari

No abstract provided.


Preliminary Study Of Synthesis Gas Production Using The Electrofuel Concept, João Gomes Dec 2014

Preliminary Study Of Synthesis Gas Production Using The Electrofuel Concept, João Gomes

João F Gomes

This paper describes preliminary work on the generation of synthesis gas from water electrolysis using graphite electrodes without the separation of the generated gases. This is an innovative process, that has no similar work been done earlier. Preliminary tests allowed to establish correlations between the applied current to the electrolyser and flow rate and composition of the generated syngas, as well as a characterisation of generated carbon nanoparticles. The obtained syngas can further be used to produce synthetic liquid fuels, for example, methane, methanol or DME (dimethyl ether) in a catalytic reactor, in further stages of a present ongoing project, …