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Full-Text Articles in Physical Sciences and Mathematics
Methodologies Utilizing Protected Oxyallyl Cations For Molecular Design, Jacob Reuben Stepherson
Methodologies Utilizing Protected Oxyallyl Cations For Molecular Design, Jacob Reuben Stepherson
LSU Master's Theses
This master’s thesis discusses developments of novel organic methodologies utilizing oxyallyl cationic systems in the pursuit of highly functionalized molecular scaffolds. Chapter 1 focuses on the discovery of the oxyallyl cation intermediate, and examines reported transformations. Detailed optimization and substrate studies following exploitation of a protected 2-oxyallyl cation for nucleophilc capture comprises the information in both Chapter 2 and Chapter 3. Chapter 4 extends methodologies performed by my colleagues and establishes a tandem process using 2-silyloxypentadienyl cations to furnish complex structures. In this report, reaction design and optimization are chronicled, followed by exploration into the reactivity, mechanism, and scope of …
Synthetic Approach Towards P3eht-B-Pss Conjugated And Ionic Block Copolymer, Zhaoyuan Liu
Synthetic Approach Towards P3eht-B-Pss Conjugated And Ionic Block Copolymer, Zhaoyuan Liu
LSU Master's Theses
This work is focused on the design, synthesis and characterization of block copolymers (BCPs) containing both conjugated and polyelectrolyte blocks. This type of rod-coil BCP is considered to have microphase separation which is different compared to coil-coil BCPs. The conjugated block used for studies is regioregular poly(3-alkylthiophene) (P3AT), which can be synthesized by Grignard metathesis (GRIM) polymerization. The polyelectrolyte block used is polystyrene sulfonate with well-defined structure, which can be synthesized by atom transfer radical polymerization (ATRP). Chapter II is focused on evaluation of synthetic routes for P3EHT-b-PSS, including using bifunctional initiator to synthesize both blocks, and separately synthesizing end-functionalized …