Recommanded Product: 1,2-DiiodoethaneIn 2016 ,《A fast controlled synthesis of poly(p-phenyleneethynylene)s under transition-metal-free conditions》 appeared in Polymer Chemistry. The author of the article were Motoshige, Asahi; Kakinuma, Junko; Iyoda, Tomokazu; Sanji, Takanobu. The article conveys some information:
A transition-metal-free polymerization of an AB-type monomer for the synthesis of well-defined poly(p-phenyleneethynylene)s is described. The polymerization of 1-pentafluorophenylethynyl-4-[(trimethylsilyl)ethynyl]benzene with a catalytic amount of tetrabutylammonium fluoride or potassium t-butoxide in the presence of cryptand[2.2.2] affords polymers within a few minutes. When monitoring the polymerization, the mol. weight as a function of monomer conversion shows a linear relationship, where the polydispersity indexes are around 1.6. The polymerization proceeds predominantly via intramol. fluoride anion transfer to the polymer end. End capping of the active polymerization end is also demonstrated. The results came from multiple reactions, including the reaction of 1,2-Diiodoethane(cas: 624-73-7Recommanded Product: 1,2-Diiodoethane)
1,2-Diiodoethane(cas: 624-73-7) is one of organic iodides. The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine. Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles.Recommanded Product: 1,2-Diiodoethane
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com