Access to Microstructurally Complex Block Copolymers via Switchable Ring-Opening Polymerization of Cyclic Ester Mixtures

Chemistry

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https://doi.org/10.1021/acs.macromol.5c00822
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Available under license: CC BY: Creative Commons Attribution 4.0 International License

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

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Access to Microstructurally Complex Block Copolymers via Switchable Ring-Opening Polymerization of Cyclic Ester Mixtures. / Seed, David J. E.; Milner, Amelia B.; Walker, George R. et al.
In: Macromolecules, Vol. 58, No. 14, 22.07.2025, p. 7026-7036.

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

Author

Seed, David J. E. ; Milner, Amelia B. ; Walker, George R. et al. / Access to Microstructurally Complex Block Copolymers via Switchable Ring-Opening Polymerization of Cyclic Ester Mixtures. In: Macromolecules. 2025 ; Vol. 58, No. 14. pp. 7026-7036.

Bibtex

@article{cf70e20f327c44cb9ca2aed422b2b3f2,

title = "Access to Microstructurally Complex Block Copolymers via Switchable Ring-Opening Polymerization of Cyclic Ester Mixtures",

abstract = "The synthesis of sequence-controlled block copolymers from a mixture of cyclic ester monomers represents a significant challenge. In this study, we demonstrate the selective and self-switchable ring-opening polymerization (ROP) of three different cyclic ester monomers (lactide (LA), rac-β-butyrolactone (rac-β-BL) and ε-caprolactone (ε-CL)) to block copolymers of the form (AB) x (BC) y using a highly selective yttrium catalyst. Each block contains units from two monomers and completely excludes one monomer. The switch from formation of one block to the next is strictly controlled by the presence or absence of LA in the reaction mixture rather than relative concentrations of each monomer. Individual block length and composition are determined by the initial monomer concentrations.",

author = "Seed, {David J. E.} and Milner, {Amelia B.} and Walker, {George R.} and Platel, {Rachel H.}",

year = "2025",

month = jul,

day = "22",

doi = "10.1021/acs.macromol.5c00822",

language = "English",

volume = "58",

pages = "7026--7036",

journal = "Macromolecules",

issn = "0024-9297",

publisher = "American Chemical Society",

number = "14",

}

RIS

TY - JOUR

T1 - Access to Microstructurally Complex Block Copolymers via Switchable Ring-Opening Polymerization of Cyclic Ester Mixtures

AU - Seed, David J. E.

AU - Milner, Amelia B.

AU - Walker, George R.

AU - Platel, Rachel H.

PY - 2025/7/22

Y1 - 2025/7/22

N2 - The synthesis of sequence-controlled block copolymers from a mixture of cyclic ester monomers represents a significant challenge. In this study, we demonstrate the selective and self-switchable ring-opening polymerization (ROP) of three different cyclic ester monomers (lactide (LA), rac-β-butyrolactone (rac-β-BL) and ε-caprolactone (ε-CL)) to block copolymers of the form (AB) x (BC) y using a highly selective yttrium catalyst. Each block contains units from two monomers and completely excludes one monomer. The switch from formation of one block to the next is strictly controlled by the presence or absence of LA in the reaction mixture rather than relative concentrations of each monomer. Individual block length and composition are determined by the initial monomer concentrations.

AB - The synthesis of sequence-controlled block copolymers from a mixture of cyclic ester monomers represents a significant challenge. In this study, we demonstrate the selective and self-switchable ring-opening polymerization (ROP) of three different cyclic ester monomers (lactide (LA), rac-β-butyrolactone (rac-β-BL) and ε-caprolactone (ε-CL)) to block copolymers of the form (AB) x (BC) y using a highly selective yttrium catalyst. Each block contains units from two monomers and completely excludes one monomer. The switch from formation of one block to the next is strictly controlled by the presence or absence of LA in the reaction mixture rather than relative concentrations of each monomer. Individual block length and composition are determined by the initial monomer concentrations.

U2 - 10.1021/acs.macromol.5c00822

DO - 10.1021/acs.macromol.5c00822

M3 - Journal article

VL - 58

SP - 7026

EP - 7036

JO - Macromolecules

JF - Macromolecules

SN - 0024-9297

IS - 14

ER -

Research

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