Synthesis of PFS Block Copolymers

In another contribution, Rehahn et al successfully synthesized PFS- -PMMA without the need for homopolymer isolation (Kloninger and Rehahn, 2004a). To circumvent the undesired reaction of anionic PFS chain ends with the carbonyl functionality of MMA that prevented sequential anionic polymerization, the reactivity of the living anionic PFS chain end was mediated with diphenylethylene (DPE). First, to ensure optimal coupling of DPE, living PFS 

The Rehahn approach to PFS- -PMMA has also allowed the preparation of the diblock copolymer PFS- -P2VP (Wang et ah, 2007a) (P2VP = poly(2-vinylpyridine) and triblock copolymers such as PS- -PFS-ft-P2VP (Chuang et ah, 2009a). 

---

Scheme 4 Synthesis of PFS block copolymers via anionic polymerization.

---