TY - JOUR
AU - Hazer, Baki
AB - Macromonomeric peroxy initiator, poly tetrahydrofuran (poly-THF=inimer) were synthesized via cationic polymerization of THF by the mono- ( t -BuBP) and tetra-bromo methyl benzoyl peroxides (BDBP)/ZnCl 2 initiating system. The macromonomers were characterized by 1 H-NMR, IR, and GPC techniques. Methyl methacrylate (MMA) polymerization initiated by poly-THF inimers at 80°C and different times in bulk gave crosslinked poly-THF-b-polymethyl methacrylate block copolymers. Swelling ratios of the crosslinked block copolymers obtained by taking in same amounts of poly-THF inimer and MMA monomer in CHCl 3 were decreased versus time. It was compared the results obtained from t -BuBP-, BDBP-ZnCl 2 initiating systems with t -BuBP-, BDBP-AgSbF 6 initiating systems for THF monomer. Poly(THF-b-MMA) crosslinked block copolymers containing undecomposed peroxide groups initiated the thermal polymerization of styrene, S, were used to obtain poly(THF-b-MM A -b-S) crosslinked multicomponent copolymers at 90°C. The crosslinked multi component copolymers were investigated sol-gel analysis and swelling ratios in CHCl 3 . "Active" poly(THF-b-MM A ) having peroxygen group were used in the free radical coupling reaction of poly butadien (Poly Bd). Poly(THF-b-MM A )-polybutadien crosslinked blend soluble graft copolymers were obtained.
TI - Initiation system effects in the cationic copolymerization of tetrahydrofuran (THF)
JF - Polymer Bulletin
DO - 10.1007/s00289-002-0067-2
DA - 2002-08-01
UR - https://www.deepdyve.com/lp/springer-journals/initiation-system-effects-in-the-cationic-copolymerization-of-FYPx8sA0Ld
SP - 25
EP - 32
VL - 49
IS - 1
DP - DeepDyve
ER -