Fast and Complete Neutralization of Thiocarbonylthio Compounds Using Trialkylborane and Oxygen: Application to Their Removal from RAFT-Synthesized Polymers
Type
ArticleKAUST Department
Academic AffairsChemical Science
Chemical Science Program
KAUST Catalysis Center
KAUST Catalysis Center (KCC)
Office of the VP
Physical Science and Engineering (PSE) Division
Polymer Synthesis Laboratory
KAUST Grant Number
BAS/1/1374-01-01Date
2019-05-24Online Publication Date
2019-05-24Print Publication Date
2019-06-18Embargo End Date
2020-05-24Permanent link to this record
http://hdl.handle.net/10754/656100
Metadata
Show full item recordAbstract
A rapid and efficient method to remove thiocarbonylthio end groups from polymers prepared by reversible addition–fragmentation chain transfer (RAFT) is described. The elimination process is obtained in less than 1 min by treating the solution of RAFT-synthesized polymers with 5 equiv of trialkylborane (TAB) in the presence of oxygen under an ambient temperature. The versatility of this method was checked on the most relevant families of thiocarbonylthio chain transfer agents (CTA), including dithioesters, trithiocarbonates, dithiocarbamates, and xanthates, carried by the corresponding RAFT-synthesized polymers. UV, NMR, and MALDI-TOF MS characterization results all confirm the complete removal of their terminal CTA groups.Citation
Alagi, P., Hadjichristidis, N., Gnanou, Y., & Feng, X. (2019). Fast and Complete Neutralization of Thiocarbonylthio Compounds Using Trialkylborane and Oxygen: Application to Their Removal from RAFT-Synthesized Polymers. ACS Macro Letters, 8(6), 664–669. doi:10.1021/acsmacrolett.9b00357Sponsors
This research work is supported by KAUST under baseline funding (BAS/1/1374-01-01).Publisher
American Chemical Society (ACS)Journal
ACS Macro LettersAdditional Links
http://pubs.acs.org/doi/10.1021/acsmacrolett.9b00357ae974a485f413a2113503eed53cd6c53
10.1021/acsmacrolett.9b00357