Copolymerization of PO/CO<sub>2</sub> and Lactide by a Dinuclear Salen-Cr(III) Complex: Gradient and Random Copolymers with Modificable Microstructure

Zhuang-Zhuang Liang; Xiang Li; Chen-Yang Hu; Ran-Long Duan; Xian-Hong Wang; Xuan Pang; Xue-si Chen

doi:10.1007/s10118-022-2727-z

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Copolymerization of PO/CO₂ and Lactide by a Dinuclear Salen-Cr(III) Complex: Gradient and Random Copolymers with Modificable Microstructure

RESEARCH ARTICLE | Updated：2022-08-19

- Copolymerization of PO/CO₂ and Lactide by a Dinuclear Salen-Cr(III) Complex: Gradient and Random Copolymers with Modificable Microstructure
- Copolymerization of PO/CO₂ and Lactide by a Dinuclear Salen-Cr(III) Complex: Gradient and Random Copolymers with Modificable Microstructure
- 高分子科学（英文版） 2022年40卷第9期页码：1028-1033
- Affiliations：
  
  a.Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  b.School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
- Author bio：
  
  xpang@ciac.ac.cn (X.P.)
  xschen@ciac.ac.cn (X.S.C.)
- Funds：
  
  This work was financially supported by the National Key R&D Program of China (No. 2021YFA1501700), the National Natural Science Foundation of China, Basic Science Center Program (No. 51988102) and the National Natural Science Foundation of China (No. 52073272).
- DOI：10.1007/s10118-022-2727-z
  中图分类号：
- 收稿：2022-01-14，
  
  修回：2022-03-17，
  
  录用：2022-03-27，
  
  网络首发：2022-06-17，
  
  纸质出版：2022-09-01
- Accepted：
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Liang, Z. Z.; Li, X.; Hu, C. Y.; Duan, R. L.; Wang, X. H.; Pang, X.; Chen, X. S. Copolymerization of PO/CO₂ and lactide by a dinuclear Salen-Cr(III) complex: gradient and random copolymers with modificable microstructure. Chinese J. Polym. Sci. 2022, 40, 1028–1033 DOI: 10.1007/s10118-022-2727-z.

Zhuang-Zhuang Liang, Xiang Li, Chen-Yang Hu, et al. Copolymerization of PO/CO₂ and Lactide by a Dinuclear Salen-Cr(III) Complex: Gradient and Random Copolymers with Modificable Microstructure[J]. Chinese Journal of Polymer Science, 2022, 40(9): 1028-1033. DOI: 10.1007/s10118-022-2727-z.
Liang, Z. Z.; Li, X.; Hu, C. Y.; Duan, R. L.; Wang, X. H.; Pang, X.; Chen, X. S. Copolymerization of PO/CO₂ and lactide by a dinuclear Salen-Cr(III) complex: gradient and random copolymers with modificable microstructure. Chinese J. Polym. Sci. 2022, 40, 1028–1033 DOI: 10.1007/s10118-022-2727-z. DOI：

Zhuang-Zhuang Liang, Xiang Li, Chen-Yang Hu, et al. Copolymerization of PO/CO₂ and Lactide by a Dinuclear Salen-Cr(III) Complex: Gradient and Random Copolymers with Modificable Microstructure[J]. Chinese Journal of Polymer Science, 2022, 40(9): 1028-1033. DOI: 10.1007/s10118-022-2727-z. DOI：

摘要

By using a dinuclear salen-Cr(III) complex

copolymerization of PO/CO2 and LA could be realized more successfully than that of mononuclear salen-Cr(III) complex. So that

gradient and random copolymers were obtained with modificable microstructure by adjusting the reaction temperature.

Abstract

Copolymerization of propylene oxide (PO)/carbon dioxide (CO

) and lactide (LA) is achievable to form new copolymers

combining the advantages of both poly(propylene carbonate) (PPC) and polylactide (PLA). In this study

we designed a dinuclear Salen-Cr(III) complex

which showed higher efficiency for copolymerization of PO/CO

and LA than that of mononuclear Salen-Cr(III) complex. Besides

we successfully obtained gradient and random copolymers of PPC-PLA in one pot. Furthermore

by adjusting reaction temperature

block ratios of PPC/PLA in copolymers were controllable (block ratio of PPC/PLA=1.0 at 40 °C

while block ratio of PPC/PLA=0.5 at room temperature). While increasing the reaction temperature to 60 °C

conversion of LA was much faster than that of PO so that gradient copolymers were obtained.

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Copolymerization of PO/CO2 and Lactide by a Dinuclear Salen-Cr(III) Complex: Gradient and Random Copolymers with Modificable Microstructure

Copolymerization of PO/CO2 and Lactide by a Dinuclear Salen-Cr(III) Complex: Gradient and Random Copolymers with Modificable Microstructure

DOI：10.1007/s10118-022-2727-z

摘要

Abstract

关键词

Keywords

references

Copolymerization of PO/CO₂ and Lactide by a Dinuclear Salen-Cr(III) Complex: Gradient and Random Copolymers with Modificable Microstructure

Copolymerization of PO/CO₂ and Lactide by a Dinuclear Salen-Cr(III) Complex: Gradient and Random Copolymers with Modificable Microstructure