Design, synthesis and characterization of novel raft agents

["Fourier transform infrared spectroscopy", "Nuclear magnetic resonance spectroscopy", "Ultraviolet spectroscopy", "Polymerization", "Dissertations -- Polymer science", "Theses -- Polymer science", "Chemistry and Polymer Science"]

Bivigou Koumba, Achille Mayelle ; Sanderson, R. D.

Stellenbosch University

Others  :  https://scholar.sun.ac.za:443/bitstream/10019.1/2992/1/bivigou_design_2005.pdf

瑞士|英语

来源: Stellenbosch University

【 摘 要 】

This thesis begins with the description of the preparation of thirteen dithioesters (of the form Z-(C=S)-S-R) which were characterized via Fourier-transform infrared spectroscopy (FT-IR), nuclearmagnetic resonance spectroscopy (NMR) and ultraviolet spectroscopy (UV). The dithioesters werethen used as reversible addition-fragmentation chain transfer (RAFT) mediating agents in the bulkpolymerization of styrene, in order to observe differences in the kinetic behaviour of thepolymerizations and, as a result, the efficiencies of the dithioesters in mediating thepolymerizations.