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Chiral Separation Of Racemic Mandelic Acid By The Coupling Crystallization Process And Simulated Moving Bed Technology, Shimin Mao
Electronic Thesis and Dissertation Repository
Chirality is a major concern in the modern pharmaceutical, food and agricultural industries. The importance of enantiopure drugs has risen dramatically in recent years due to FDA regulations requiring that all chiral bioactive molecules must be isolated and tested for the efficacy and safety, and have to be as pure as possible containing a single pure enantiomer. There are essentially three strategies that can be applied to obtain single pure isomers: (a) extraction from plants and animal materials (b) enantio-selective asymmetric synthesis so that only one isomer is formed in the first place, or (c) making a racemate and finding …
Volume-Phase Transitions In Responsive Photo-Cross-Linked Polymer Network Films, Leena Patra
Volume-Phase Transitions In Responsive Photo-Cross-Linked Polymer Network Films, Leena Patra
USF Tampa Graduate Theses and Dissertations
The overall thrust of this project is to gain an insight into a class of surface-tethered cross-linked thin films of poly(N-alkylacrylamides) that display a lower critical solution temperature (LCST).The structure of the alkyl group and the modification of the amide groups determine the LCST and resultant volume-phase transition behavior. The aim of this study involves synthesis and characterization of thin films and to correlate the volume-transition behavior to the structure of the alkyl group. For better understanding the volume-transition behavior, the polymer films are perturbed by the Hofmeister salt series to examine trends between different alkyl groups. While most of …