Macro azo initiators via cationic polymerization. Synthesis and application

Functional Nanostructures

“…An entirely different concept towards block copolymer synthesis with a wide range of structure and architecture makes the use of active-center transformation approach. Similarly associating radical-to-cationic polymerization, [214,215] cationic to-radical polymerization [216][217][218] anionic-to-radical polymeri zation , [219] cationic-to-anionic polymerization, [220] anionic-to-cationic polymerization [221] have also been employed successfully to synthesize many novel A-B and ABA-type block copolymers. This transformation involving anions, cations, and radicals is possible.…”

Cationic Initiation of Vinyl Ether Polymerization Induced by (4-RC6H4)(4-RC6H4)RCX in Conjunction with Silica: Producing Highly Head Group Functionalized Polymers

“…The greatest progress in living vinyl ether polymerization was made by introducing α-iodo ethers in combination with weak Lewis acids (e.g. ZnI 2 ), iodine, and other moderate acceptors − and of α-halogeno ethers in combination with tetraalkylammonium perchlorate − as initiator. In 1995, Baird and Wang were the first to report on a metallocene initiator, (η 5 -C 5 Me 5 )TiMe 2 (μ-Me)B(C 6 F 5 ) 3 , for electron rich olefins like vinyl ethers and isobutene .…”

End-functionalized polymers of p-alkoxystyrenes by living cationic polymerization. 1. p-Methoxystyrene

“…The other method (eq 2) utilizes the quenching of the HI/ZnI2-initiated living poly(p-alkoxystyrene) with a reagent (7) having a functional group (Z) to be attached to the polymer "tail" ( -end) (end-capping method).46…”