Macromolecules

, volume 50 , issue 1 , pages 83-96

Suppressing Cyclic Polymerization for Isoselective Synthesis of High-Molecular-Weight Linear Polylactide Catalyzed by Sodium/Potassium Sulfonamidate Complexes

Changjuan Chen ^{1, 2}

Yaqin Cui ¹

Xiaoyang Mao ¹

Xiaojun Pan ¹

Jin-Cai Wu ¹

Hide authors affiliations Show authors affiliations: 2 affiliations

State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou 730000, People’s Republic of China |

College of Chemistry and Pharmaceutical Engineering, Huanghuai University, Zhumadian 463000, People’s Republic of China |

Publication type: Journal Article

Publication date: 2016-12-20

American Chemical Society (ACS)

Macromolecules

scimago Q1

wos Q1

SJR: 1.352

CiteScore: 9.0

Impact factor: 5.2

ISSN: 00249297, 15205835

DOI: 10.1021/acs.macromol.6b02271

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Materials Chemistry

Organic Chemistry

Inorganic Chemistry

Polymers and Plastics

Abstract

A new sodium/potassium crown ether complex system with a series of bichelating sulfonamides as ligands was developed for the ring-opening polymerization (ROP) of rac-lactide. In this system, the side reaction of cyclic polymerization can be suppressed very well because of very different ROP rates initiated by BnOH and sulfonamide anion. The synthesis of high molecular weight linear polylactide with molecular weight high up to 107 kg/mol was successful. The best isoselectivity also can reach to a high value of Pm = 0.84. The NMR analysis of the reaction mixture of rac-lactide and complex 3 together with kinetic studies suggests the mechanism of ROP in the absence of alcohol is a coordination–insertion mechanism. After addition of BnOH, the ROP rate can increase remarkably due to the cooperation interaction of alcohol and complex 3.

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Marta Elena

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Universidad de Alcalá

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Churakov Andrei

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Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences

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Zaitsev Kirill

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Lomonosov Moscow State University

A.V. Topchiev Institute of Petrochemical Synthesis RAS

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Chen C. et al. Suppressing Cyclic Polymerization for Isoselective Synthesis of High-Molecular-Weight Linear Polylactide Catalyzed by Sodium/Potassium Sulfonamidate Complexes // Macromolecules. 2016. Vol. 50. No. 1. pp. 83-96.

GOST all authors (up to 50) Copy

Chen C., Cui Y., Mao X., Pan X., Wu J. Suppressing Cyclic Polymerization for Isoselective Synthesis of High-Molecular-Weight Linear Polylactide Catalyzed by Sodium/Potassium Sulfonamidate Complexes // Macromolecules. 2016. Vol. 50. No. 1. pp. 83-96.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1021/acs.macromol.6b02271

UR - https://doi.org/10.1021/acs.macromol.6b02271

TI - Suppressing Cyclic Polymerization for Isoselective Synthesis of High-Molecular-Weight Linear Polylactide Catalyzed by Sodium/Potassium Sulfonamidate Complexes

T2 - Macromolecules

AU - Chen, Changjuan

AU - Cui, Yaqin

AU - Mao, Xiaoyang

AU - Pan, Xiaojun

AU - Wu, Jin-Cai

PY - 2016

DA - 2016/12/20

PB - American Chemical Society (ACS)

SP - 83-96

IS - 1

VL - 50

SN - 0024-9297

SN - 1520-5835

ER -

BibTex |

Cite this

BibTex (up to 50 authors) Copy

@article{2016_Chen,

author = {Changjuan Chen and Yaqin Cui and Xiaoyang Mao and Xiaojun Pan and Jin-Cai Wu},

title = {Suppressing Cyclic Polymerization for Isoselective Synthesis of High-Molecular-Weight Linear Polylactide Catalyzed by Sodium/Potassium Sulfonamidate Complexes},

journal = {Macromolecules},

year = {2016},

volume = {50},

publisher = {American Chemical Society (ACS)},

month = {dec},

url = {https://doi.org/10.1021/acs.macromol.6b02271},

number = {1},

pages = {83--96},

doi = {10.1021/acs.macromol.6b02271}

}

MLA

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MLA Copy

Chen, Changjuan, et al. “Suppressing Cyclic Polymerization for Isoselective Synthesis of High-Molecular-Weight Linear Polylactide Catalyzed by Sodium/Potassium Sulfonamidate Complexes.” Macromolecules, vol. 50, no. 1, Dec. 2016, pp. 83-96. https://doi.org/10.1021/acs.macromol.6b02271.

Publisher

American Chemical Society (ACS)

Journal

Macromolecules

scimago Q1

wos Q1

SJR

1.352

CiteScore

9.0

Impact factor

5.2

ISSN

00249297 (Print)

15205835 (Electronic)

Profiles

Jincai Wu