Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 6 of 6 for “"States of Water"”.
-
Solute-Polymer States of Water and the Physico-Chemical Properties of Food Model Systems (Crystallinity, Sorption, Hysteresis, Starch)
… was first to study physico-chemical properties of solute-polymer mixtures as related to water binding, solute content and water activity (a(,w)). It was hypothesized that these properties were due to the presence of solute (SOL) and polymer (POL) water. The second objective was to develop a …
-
Structure Property Relationships of Proton Exchange Membranes
The major challenge of the research was to characterize and develop concepts for establishing structure/property relationships between the functionality of the polymer backbone, the states of water and the membrane transport properties. Most of the hydrocarbon based random copolymers reported in …
-
Morphological study of composite latex particles and water interaction with polymer chains
<p>The primary purpose of this research was the morphological study of composite polymer (2 or more) nano-particles in an aqueous dispersed system. This included synthesis, characterization and mathematical/numerical modeling. For a composite latex particle, the morphology can play an important …
-
Synthesis and characterisation of hydrogel polymers for medical applications
… problem that hydrogels display is the tendency of these contact lens materials to dehydrate, causing certain complications of the corneal epithelium. However, recent studies have indicated that the evaporation rate of water from different hydrogel lenses is the same and the severity of …
-
Durability study of proton exchange membrane fuel cells via experimental investigations and mathematical modeling
… attention is given to the mechanical aspects of the PEMFC system. The tensile stress-strain behavior of Nafion® 117 (N117) and sulfonated poly(arylene ether sulfone) random copolymer (BPSH35) membranes is explored under ambient conditions, with respect to the effects of initial strain rate, …
-
Estados eletrônicos e rotovibracionais da molécula de água no Sol
Um refinamento na análise do espectro de absorção IV das manchas solares permitiu a identificação de 67 novas bandas, que agora se somam as 185 já identificadas como transições rotovibracionais da molécula de água. Os resultados revelam transições dentro do mesmo nível vibracional assim como …