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

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...

Full description

Saved in:
Bibliographic Details
Published in:Chinese journal of polymer science 2020-11, Vol.38 (11), p.1178-1184
Main Authors: Lv, Chun-Na, Li, Ning, Du, Yu-Xuan, Li, Jia-Hua, Pan, Xiang-Cheng
Format: Article
Language:English
Subjects:
Activation
Ambient temperature
Autoxidation
Chains (polymeric)
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Deactivation
Industrial Chemistry/Chemical Engineering
Initiation (polymerization)
Oxygen
Polymer Sciences
Polymerization
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0256-7679
1439-6203
DOI:10.1007/s10118-020-2441-7