BIAN-Fe(η<sup>6</sup>-C<inf>6</inf>H<inf>6</inf>): Synthesis, characterization, and l-lactide polymerization

Lauren A. Brown; Francis Wekesa; Daniel Unruh; Michael Findlater; Brian K. Long

BIAN-Fe(η<sup>6</sup>-C<inf>6</inf>H<inf>6</inf>): Synthesis, characterization, and l-lactide polymerization

Lauren A. Brown, Francis Wekesa, Daniel Unruh, Michael Findlater, Brian K. Long

Chemistry and Biochemistry

Research output: Contribution to journal › Article › peer-review

Abstract

© 2017 Wiley Periodicals, Inc. The α-diimine-ligated Fe-complex, BIAN-Fe(C 6 H 6 ), was synthesized and evaluated for the polymerization of l-lactide. Characterization of BIAN-Fe(C 6 H 6 ) reveals that it is redox non-innocent and suggests that it is an Fe(I) species bearing a radical-anionic ligand. We will demonstrate that BIAN-Fe(C 6 H 6 ) is active for the ring-opening polymerization of l-lactide, and that polymer is produced with, or without, the use of an added external initiator. Interestingly, very high molecular weight polymers are produced in the absence of external initiator whereas polymer molecular weights that agree with theoretical calculations are produced in the presence of external initiator. To the best of our knowledge, BIAN-Fe(C 6 H 6 ) is the first Fe-based α-diimine catalyst reported to be active for the polymerization of l-lactide. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2 017, 55, 2824–2830.

Original language	English
Pages (from-to)	2824-2830
Journal	Default journal
State	Published - Sep 1 2017

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title = "BIAN-Fe(η6-C6H6): Synthesis, characterization, and l-lactide polymerization",

abstract = "{\textcopyright} 2017 Wiley Periodicals, Inc. The α-diimine-ligated Fe-complex, BIAN-Fe(C 6 H 6 ), was synthesized and evaluated for the polymerization of l-lactide. Characterization of BIAN-Fe(C 6 H 6 ) reveals that it is redox non-innocent and suggests that it is an Fe(I) species bearing a radical-anionic ligand. We will demonstrate that BIAN-Fe(C 6 H 6 ) is active for the ring-opening polymerization of l-lactide, and that polymer is produced with, or without, the use of an added external initiator. Interestingly, very high molecular weight polymers are produced in the absence of external initiator whereas polymer molecular weights that agree with theoretical calculations are produced in the presence of external initiator. To the best of our knowledge, BIAN-Fe(C 6 H 6 ) is the first Fe-based α-diimine catalyst reported to be active for the polymerization of l-lactide. {\textcopyright} 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2 017, 55, 2824–2830.",

author = "Brown, {Lauren A.} and Francis Wekesa and Daniel Unruh and Michael Findlater and Long, {Brian K.}",

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T1 - BIAN-Fe(η6-C6H6): Synthesis, characterization, and l-lactide polymerization

AU - Brown, Lauren A.

AU - Wekesa, Francis

AU - Unruh, Daniel

AU - Findlater, Michael

AU - Long, Brian K.

PY - 2017/9/1

Y1 - 2017/9/1

N2 - © 2017 Wiley Periodicals, Inc. The α-diimine-ligated Fe-complex, BIAN-Fe(C 6 H 6 ), was synthesized and evaluated for the polymerization of l-lactide. Characterization of BIAN-Fe(C 6 H 6 ) reveals that it is redox non-innocent and suggests that it is an Fe(I) species bearing a radical-anionic ligand. We will demonstrate that BIAN-Fe(C 6 H 6 ) is active for the ring-opening polymerization of l-lactide, and that polymer is produced with, or without, the use of an added external initiator. Interestingly, very high molecular weight polymers are produced in the absence of external initiator whereas polymer molecular weights that agree with theoretical calculations are produced in the presence of external initiator. To the best of our knowledge, BIAN-Fe(C 6 H 6 ) is the first Fe-based α-diimine catalyst reported to be active for the polymerization of l-lactide. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2 017, 55, 2824–2830.

AB - © 2017 Wiley Periodicals, Inc. The α-diimine-ligated Fe-complex, BIAN-Fe(C 6 H 6 ), was synthesized and evaluated for the polymerization of l-lactide. Characterization of BIAN-Fe(C 6 H 6 ) reveals that it is redox non-innocent and suggests that it is an Fe(I) species bearing a radical-anionic ligand. We will demonstrate that BIAN-Fe(C 6 H 6 ) is active for the ring-opening polymerization of l-lactide, and that polymer is produced with, or without, the use of an added external initiator. Interestingly, very high molecular weight polymers are produced in the absence of external initiator whereas polymer molecular weights that agree with theoretical calculations are produced in the presence of external initiator. To the best of our knowledge, BIAN-Fe(C 6 H 6 ) is the first Fe-based α-diimine catalyst reported to be active for the polymerization of l-lactide. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2 017, 55, 2824–2830.

M3 - Article

SP - 2824

EP - 2830

JO - Default journal

JF - Default journal

ER -

BIAN-Fe(η<sup>6</sup>-C<inf>6</inf>H<inf>6</inf>): Synthesis, characterization, and l-lactide polymerization

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