Free-Radical Grafting by Chain-Transferring Process

1 Free-Radical Grafting by Chain-Transferring Process 

This technique is probably one of the simplest ways to form graft copolymers. It consists of carrying out firee-radical polymerizations of monomers in the presence of polymers preformed firom different 

Propagations then precede from the backbone sites  

Terminations can take place in many ways. Of course, termination by combination will lead to cross-linked insoluble polymers and that is undesirable. An ideal termination takes place by chain transferring to another site on a polymer backbone to initiate another chain growth. 

The above, however, is an ideal picture. In reahty, the efficiency of grafting by this technique depends upon the following  

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