TY - JOUR
T1 - Ring-opening polymerization of substituted e-caprolactones with a chiral (salen) AlOiPr complex
AU - Breteler, ten, M.R.
AU - Zhong, Z.
AU - Dijkstra, P.J.
AU - Palmans, A.R.A.
AU - Peeters, J.W.
AU - Feijen, J.
PY - 2007
Y1 - 2007
N2 - The ring-opening polymerization (ROP) of -caprolactone (-CL), 4-methyl--caprolactone (4-MeCL), and 6-methyl--caprolactone (6-MeCL) with a single-site chiral initiator, R,R-(salen) aluminum isopropoxide (R,R-[1]), was investigated. The kinetic data for the ROP of the three monomers at 90° in toluene corresponded to first-order reactions in the monomer and propagation rate constants of k-CL > k4-MeCL k6-MeCL. A notable stereoselectivity with a preference for the R-enantiomer was observed in the ROP of 6-MeCL with R,R-[1], whereas for 4-MeCL, no stereoselectivity was found
AB - The ring-opening polymerization (ROP) of -caprolactone (-CL), 4-methyl--caprolactone (4-MeCL), and 6-methyl--caprolactone (6-MeCL) with a single-site chiral initiator, R,R-(salen) aluminum isopropoxide (R,R-[1]), was investigated. The kinetic data for the ROP of the three monomers at 90° in toluene corresponded to first-order reactions in the monomer and propagation rate constants of k-CL > k4-MeCL k6-MeCL. A notable stereoselectivity with a preference for the R-enantiomer was observed in the ROP of 6-MeCL with R,R-[1], whereas for 4-MeCL, no stereoselectivity was found
U2 - 10.1002/pola.21841
DO - 10.1002/pola.21841
M3 - Article
SN - 0887-624X
VL - 45
SP - 429
EP - 436
JO - Journal of Polymer Science, Part A: Polymer Chemistry
JF - Journal of Polymer Science, Part A: Polymer Chemistry
IS - 3
ER -