Using PPPDTA and the Acetone Transport Technique, living character and molecular weight control have been achieved.
In a typical experiment, the new polymer can be seen to increase in molecular weight as a function of conversion. (The large broad peak is the seed polymer peak, the new polymer is the sharp, reasonably monodisperse peak.)

When plotted as a function of conversion, the value of Mn is seen to be linearly dependent on conversion.

Using the data from a number of different experiments (both Interval II and Interval III experiments) with varying [Monomer]/[Initiator] and [Monomer]/[RAFT]

Note that there was no destablisation of the latex evident using these techniques.
Last edited: Wednesday June 22, 2005
Copyright © 1996-2014 Stuart Prescott