Thin thermo-responsive polymer films onto the pore system of chromatographic beads via reversible addition-fragmentation chain transfer polymerization was written by Roohi, Farnoosh;Titirici, Maria-Magdalena. And the article was included in New Journal of Chemistry in 2008.Electric Literature of C14H12S2 This article mentions the following:
Mesoporous silica beads modified with an azo initiator were used for grafting of a thermo-responsive polymer (poly-N-isopropylacrylamide, PNIPAAM) through reversible addition-fragmentation chain transfer (RAFT) mediated polymerization The RAFT mediation allowed an efficient control of the grafting process and led to suppression of the solution propagation preventing any visible gel formation. The resulting composites were characterized by FTIR spectroscopy, nitrogen adsorption anal., elemental anal., transmission and SEM and as thermo-responsive stationary phases in chromatog. The resulting material proved to be efficient for the separation of a mixture of five hydrophobic steroids and the retention time and efficiency of separation improved with increasing the column temperature above the lowest critical solution temperature of PNIPAAM. In the experiment, the researchers used many compounds, for example, Benzyl benzodithioate (cas: 27249-90-7Electric Literature of C14H12S2).
Benzyl benzodithioate (cas: 27249-90-7) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Electric Literature of C14H12S2
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics