Active Center Interconversions and the Determination of Absolute Rate Constants

2 Active Center Interconversions and the Determination of Absolute Rate Constants 

Active centers are formed on the first addition of monomer to initiator. Since, for purposes of controlled polymerization, this step must be both rapid and quantitative, there is no need to discuss the initiation step separately at this point. 

Recent methods used to determine the chemical stractures and/or concentrations of active centers in ROP elaborated [23, 24] were mostly based on direct 

X = heteroatom or group containing heteroatoms M = monomer molecule. 

Equation 1.33b is obtained from Equation 1.33a by introducing the assumption that [IJo/ffp 1, which is valid for weak electrolytes. 

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