Poli, Rinaldo published the artcileNew mechanistic insights into ATRP using molybdenum coordination compounds, Name: Ethyl 2-Iodopropionate, the publication is Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) (2005), 46(2), 305-306, database is CAplus.
Atom transfer radical polymerization (ATPR) of Me acrylate (MA) using the same halogen on both the Mo complex catalyst (CpMoX2(iPr2dad); X = Cl or iodine; dad = diazadiene) and the initiator (MeCHYCO2Et; Y = Cl or iodine) was unsuccessful when the halogen was Cl and no cocatalyst was present. However, the polymerization occurred smoothly in the presence of the cocatalyst Al(OPri)3. Mn grew linearly with the conversion, although the polydispersity index was relatively high (ca. 1.5). The apparent rate constant increased by a factor of ca. 10 on changing the initiator from MeCHClCO2Et to MeCHICO2Et. The initiator efficiency factor, f, was 0.37 when using the chloride initiator, the lowest value observed so far. In the case of the fully iodine-based system, the polymerization was pseudo-living both with and without Al(OPri)3. Thus, the ATRP of MA os accelerated by replacing Cl by iodine in the Mo catalyst (by a factor of ca. 5) and f is unity for this system. Finally, investigations of the stable free radical polymerization (SFRP) of styrene and MA revealed that irreversible radical trapping occurred. The low initiator efficiency factor in ATRP may be explained rather easily, and indeed must be expected, each time that the ATRP catalyst is also capable of trapping irreversibly the active radical.
Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) published new progress about 31253-08-4. 31253-08-4 belongs to iodides-buliding-blocks, auxiliary class Iodide,Ester, name is Ethyl 2-Iodopropionate, and the molecular formula is C5H9IO2, Name: Ethyl 2-Iodopropionate.
Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com