Successful dispersion polymerization in supercritical CO2 using polyvinylalkylate hydrocarbon surfactants synthesized and anchored via RAFT.
New CO2-philic hydrocarbon molecules were synthesized by reversible addition fragmentation chain-transfer polymerization. These poly(vinyl alkylates) show the highest solubility in supercritical CO2 of any hydrocarbon reported to date. By utilizing the anchoring ability of the thiocarbonylthio end group, the dispersion polymerization of N-vinyl pyrrolidone was successfully achieved in scCO2 leading to high yields of well-defined spherical polymer particles.
Lee
Hyunsuk
H
School of Chemistry, The University of Nottingham, Nottingham NG7 2RD, United Kingdom.
Terry
Elaine
E
Zong
Mengmeng
M
Arrowsmith
Nicholas
N
Perrier
Sébastien
S
Thurecht
Kristofer J
KJ
Howdle
Steven M
SM