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Synthetic routes to block copolymerization by changing mechanism from cationic polymerization to free radical polymerisation
Author(s) -
Yagoi Yusuf,
Hizal Gürkan,
Önen Ayşen,
Serhatli İErsin
Publication year - 1994
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19940840116
Subject(s) - cationic polymerization , polymer chemistry , copolymer , cyclohexene oxide , polymerization , monomer , ionic polymerization , chain growth polymerization , chemistry , ring opening polymerization , chain transfer , living free radical polymerization , living cationic polymerization , radical polymerization , polymer , materials science , organic chemistry
Polymers containing thermolabile groups were synthesized by various cationic polymerization initiation mechanisms, namely; oxo–carbenium, promoted cationic and activated monomer polymerization. These polymers used in a subsequent blocking step in which azo groups were decomposed and converted into initiating centres from which blocks were grown by means of free radical polymerization. This procedure was applied to specific systems in which cationic polymerizable monomers are tetrahydrofuran (THF), cyclohexene oxide (CHO) and epichlorohydrin (ECH), respectively, and the free radical polymerizable monomer is styrene (St).