Bis(8-quinolinolato)aluminum ethyl complexes: Iso-Selective Initiators for rac-Lactide Polymerization

Chemistry

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Bis(8-quinolinolato)aluminum ethyl complexes: Iso-Selective Initiators for rac-Lactide Polymerization. / Bakewell, Clare; Platel, Rachel H.; Cary, Samantha K. et al.
In: Organometallics, Vol. 31, No. 13, 09.07.2012, p. 4729-4736.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Bakewell, C, Platel, RH, Cary, SK, Hubbard, SM, Roaf, JM, Levine, AC, White, AJP, Long, NJ, Haaf, M & Williams, CK 2012, 'Bis(8-quinolinolato)aluminum ethyl complexes: Iso-Selective Initiators for rac-Lactide Polymerization', Organometallics, vol. 31, no. 13, pp. 4729-4736. https://doi.org/10.1021/om300307t

APA

Bakewell, C., Platel, R. H., Cary, S. K., Hubbard, S. M., Roaf, J. M., Levine, A. C., White, A. J. P., Long, N. J., Haaf, M., & Williams, C. K. (2012). Bis(8-quinolinolato)aluminum ethyl complexes: Iso-Selective Initiators for rac-Lactide Polymerization. Organometallics, 31(13), 4729-4736. https://doi.org/10.1021/om300307t

Vancouver

Bakewell C, Platel RH, Cary SK, Hubbard SM, Roaf JM, Levine AC et al. Bis(8-quinolinolato)aluminum ethyl complexes: Iso-Selective Initiators for rac-Lactide Polymerization. Organometallics. 2012 Jul 9;31(13):4729-4736. doi: 10.1021/om300307t

Author

Bakewell, Clare ; Platel, Rachel H. ; Cary, Samantha K. et al. / Bis(8-quinolinolato)aluminum ethyl complexes: Iso-Selective Initiators for rac-Lactide Polymerization. In: Organometallics. 2012 ; Vol. 31, No. 13. pp. 4729-4736.

Bibtex

@article{bb09509fb1b84733bc9f2a2aad4cd08f,

title = "Bis(8-quinolinolato)aluminum ethyl complexes: Iso-Selective Initiators for rac-Lactide Polymerization",

abstract = "The synthesis and characterization of a series of bis(8-quinolinato)aluminum ethyl complexes, substituted at the 2-, 5-, and 7-positions on the 8-quinolinol ligand, are presented. These complexes are viable initiators for the ring-opening polymerization of rac-lactide in the presence of 1 equiv of isopropyl alcohol. The polymerization control is good, it shows a linear evolution of molecular weight as the polymerization progresses, the polylactide molecular weights are in close agreement with those determined on the basis of the reaction stoichiometry, and the polydispersity indices are narrow. The polymerization kinetics have been monitored, and the influence of the site of ligand substitution has been related to the rates. Some of the initiators show stereocontrol, producing PLA with a good probability of isotactic enchainment (P-i = 0.76).",

keywords = "ALKYL COMPLEXES, OPTICAL-PROPERTIES, STEREOSELECTIVE POLYMERIZATION, YTTRIUM COMPLEXES, ALUMINUM COMPLEXES, FLUXIONAL BEHAVIOR, EPSILON-CAPROLACTONE, RACEMIC LACTIDE, GROUP-4 SALALEN COMPLEXES, RING-OPENING POLYMERIZATION",

author = "Clare Bakewell and Platel, {Rachel H.} and Cary, {Samantha K.} and Hubbard, {Steven M.} and Roaf, {Joshua M.} and Levine, {Alex C.} and White, {Andrew J. P.} and Long, {Nicholas J.} and Michael Haaf and Williams, {Charlotte K.}",

year = "2012",

month = jul,

day = "9",

doi = "10.1021/om300307t",

language = "English",

volume = "31",

pages = "4729--4736",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society",

number = "13",

}

RIS

TY - JOUR

T1 - Bis(8-quinolinolato)aluminum ethyl complexes: Iso-Selective Initiators for rac-Lactide Polymerization

AU - Bakewell, Clare

AU - Platel, Rachel H.

AU - Cary, Samantha K.

AU - Hubbard, Steven M.

AU - Roaf, Joshua M.

AU - Levine, Alex C.

AU - White, Andrew J. P.

AU - Long, Nicholas J.

AU - Haaf, Michael

AU - Williams, Charlotte K.

PY - 2012/7/9

Y1 - 2012/7/9

N2 - The synthesis and characterization of a series of bis(8-quinolinato)aluminum ethyl complexes, substituted at the 2-, 5-, and 7-positions on the 8-quinolinol ligand, are presented. These complexes are viable initiators for the ring-opening polymerization of rac-lactide in the presence of 1 equiv of isopropyl alcohol. The polymerization control is good, it shows a linear evolution of molecular weight as the polymerization progresses, the polylactide molecular weights are in close agreement with those determined on the basis of the reaction stoichiometry, and the polydispersity indices are narrow. The polymerization kinetics have been monitored, and the influence of the site of ligand substitution has been related to the rates. Some of the initiators show stereocontrol, producing PLA with a good probability of isotactic enchainment (P-i = 0.76).

AB - The synthesis and characterization of a series of bis(8-quinolinato)aluminum ethyl complexes, substituted at the 2-, 5-, and 7-positions on the 8-quinolinol ligand, are presented. These complexes are viable initiators for the ring-opening polymerization of rac-lactide in the presence of 1 equiv of isopropyl alcohol. The polymerization control is good, it shows a linear evolution of molecular weight as the polymerization progresses, the polylactide molecular weights are in close agreement with those determined on the basis of the reaction stoichiometry, and the polydispersity indices are narrow. The polymerization kinetics have been monitored, and the influence of the site of ligand substitution has been related to the rates. Some of the initiators show stereocontrol, producing PLA with a good probability of isotactic enchainment (P-i = 0.76).

KW - ALKYL COMPLEXES

KW - OPTICAL-PROPERTIES

KW - STEREOSELECTIVE POLYMERIZATION

KW - YTTRIUM COMPLEXES

KW - ALUMINUM COMPLEXES

KW - FLUXIONAL BEHAVIOR

KW - EPSILON-CAPROLACTONE

KW - RACEMIC LACTIDE

KW - GROUP-4 SALALEN COMPLEXES

KW - RING-OPENING POLYMERIZATION

U2 - 10.1021/om300307t

DO - 10.1021/om300307t

M3 - Journal article

VL - 31

SP - 4729

EP - 4736

JO - Organometallics

JF - Organometallics

SN - 0276-7333

IS - 13

ER -

Research

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