| Issue |
BIO Web Conf.
Volume 55, 2022
5th International Conference on Frontiers of Biological Sciences and Engineering (FBSE 2022)
|
|
|---|---|---|
| Article Number | 01028 | |
| Number of page(s) | 5 | |
| DOI | https://doi.org/10.1051/bioconf/20225501028 | |
| Published online | 21 November 2022 | |
Preparation of Polyacrylamide with Improved Tacticity and Low Molecular Weight Distribution
1 School of Biochemistry and Engineering, Yangzhou Polytechnic University, Yangzhou 225009, People’s Republic of China.
2 Yangzhou Institute of Product Quality Supervision and Inspection, Yangzhou 225001, People’s Republic of China.
* Corresponding author: njujianguo@126.com
Polyacrylamide with improved tacticity and low molecular weight distribution was obtained via stereospecific atom transfer radical polymerization (ATRP) using the mixture of Lewis acids Y(OTf)3 and AlCl3 in a certain ratio as stereospecific catalyst and chloroacetic acid/ Cu2O / N,N,N’,N’-tetramethylethylenediamine( TMEDA) as initiating system. The initiating system afforded persistently controlled ATRP of acrylamide with lower polydispersity index ranging from 1.12 to 1.35 as well as a moderate polymerization process. The participation of the mixture of Lewis acids Y(OTf)3 and AlCl3 as stereospecific catalyst in the stereospecific ATRP of acrylamide contributed optimal stereospecific PAM with the meso content 80%~83%. Polymerization kinetics displayed a living/controlled nature of the present polymerizations.
Key words: Polyacrylamide / Tacticity / ATRP / Polydispersity
© The Authors, published by EDP Sciences, 2022
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