Journal
MOLECULES
Volume 28, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/molecules28031262
Keywords
salen; imine ligands; aluminum complex; aluminum alkoxide; NMR spectroscopy; X-ray diffraction analysis; ring-opening polymerization; macromonomer
Ask authors/readers for more resources
A highly efficient one-step approach to macromonomer synthesis using modified aluminum complexes as catalysts was developed. Aluminum salen complexes functionalized with unsaturated alcohol were synthesized and their structures and catalytic activities were studied. Among the complexes, 3b exhibited the highest activity in ROP, producing polyesters with controlled molecular weights and high number-average functionalities.
A highly efficient one-step approach to the macromonomer synthesis using modified aluminum complexes as catalysts of ring-opening polymerization (ROP) of epsilon-caprolactone and D,L-lactide was developed. The syntheses, structures, and catalytic activities of a wide range of aluminum salen complexes, 3a-c, functionalized with unsaturated alcohol (HO(CH2)(4)OCH=CH2) are reported. X-Ray diffraction studies revealed a tetragonal pyramidal structure for 3c. Among the complexes 3a-c, the highest activity in bulk ROP of epsilon-caprolactone and D,L-lactide was displayed by 3b, affording polyesters with controlled molecular weights at low monomer to initiator ratios (M-n up to 15,000 g mol(-1)), relatively high polydispersities ((sic)similar to 1.8) and high number-average functionalities (F-n up to 85%).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available