Activation and Deactivation of Chain-transfer Agent in Controlled Radical Polymerization by Oxygen Initiation and Regulation

Chun-Na Lv; Ning Li; Yu-Xuan Du; Jia-Hua Li; Xiang-Cheng Pan

doi:10.1007/s10118-020-2441-7

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Activation and Deactivation of Chain-transfer Agent in Controlled Radical Polymerization by Oxygen Initiation and Regulation

ARTICLE | Updated：2020-06-05

- Activation and Deactivation of Chain-transfer Agent in Controlled Radical Polymerization by Oxygen Initiation and Regulation
- Activation and Deactivation of Chain-transfer Agent in Controlled Radical Polymerization by Oxygen Initiation and Regulation
- Chinese Journal of Polymer Science 2020年38卷第11期页码：1178-1184
- Affiliations：
  
  State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
- Author bio：
  
  panxc@fudan.edu.cn
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (Nos. 21704017, 21871056, and 91956122).
- DOI：10.1007/s10118-020-2441-7
  中图分类号：
- 收稿：2020-03-06，
  
  修回：2020-4-9，
  
  录用：2020-4-9，
  
  网络首发：2020-06-05，
  
  纸质出版：2020-08-14
- Accepted：
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Lv, C. N.; Li, N.; Du, Y. X.; Li, J. H.; Pan, X. C. Activation and deactivation of chain-transfer agent in controlled radical polymerization by oxygen initiation and regulation. Chinese J. Polym. Sci. 2020, 38, 1178–1184

Chun-Na Lv, Ning Li, Yu-Xuan Du, et al. Activation and Deactivation of Chain-transfer Agent in Controlled Radical Polymerization by Oxygen Initiation and Regulation[J]. Chinese Journal of Polymer Science, 2020, 38(11): 1178-1184.
Lv, C. N.; Li, N.; Du, Y. X.; Li, J. H.; Pan, X. C. Activation and deactivation of chain-transfer agent in controlled radical polymerization by oxygen initiation and regulation. Chinese J. Polym. Sci. 2020, 38, 1178–1184 DOI： 10.1007/s10118-020-2441-7.

Chun-Na Lv, Ning Li, Yu-Xuan Du, et al. Activation and Deactivation of Chain-transfer Agent in Controlled Radical Polymerization by Oxygen Initiation and Regulation[J]. Chinese Journal of Polymer Science, 2020, 38(11): 1178-1184. DOI： 10.1007/s10118-020-2441-7.

摘要

Abstract

The activation and deactivation of the chain-transfer agent were achieved by oxygen initiation and regulation with triethylborane under ambient temperature and atmosphere. The autoxidation of triethylborane overcame the oxygen inhibition and produced initiating radicals that selectively activate the chain-transfer agent for the chain growth or deactivate the active chain-end of polymer in controlled radical polymerization. Both activation and deactivation were highly efficient with broad scope for various polymers with different chain-transfer agents in both organic and aqueous systems. Oxygen molecule was particularly used as an external regulator to initiate and achieve the temporal control of both activation and deactivation by simply feeding the air.

关键词

Keywords

references

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