VITAMIN C AS CHAIN TRANSFER AGENT DURING ACRYLAMIDE POLYMERIZATION

Authors

  • P. G. Minasyan Faculty of Chemistry, YSU, Armenia

DOI:

https://doi.org/10.46991/PYSU:B/2009.43.3.007

Keywords:

acrylamide polymerization, vitamin C, viscosimetry, potassium persulfate

Abstract

The influence of vitamin C ($\leq$ 10-4 M) on the rate of acrylamide (AA) polymerization, on the mean molecular mass ($\overline{MM}$) of the obtained polyAA has been studied. The AA polymerization is carried out in aqueous solutions pH = 3 and 323 K. The initiator was the potassium persulfate. RP has been determined by dilatometry and $\overline{MM}$ - by viscosimetry . It has been established that the experimental data obey Mayo equation and vitamin C transfers the chain. The evaluated absolute value of ktr is of the order 104 M-1s-1at 323 K. In the case when [vit. C]0$\geq 2\cdot$ 10-3 M probably the chain is transfered with degradation.

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Published

2009-10-22

How to Cite

Minasyan, P. G. 2009. “VITAMIN C AS CHAIN TRANSFER AGENT DURING ACRYLAMIDE POLYMERIZATION”. Proceedings of the YSU B: Chemical and Biological Sciences 43 (3 (220):7-12. https://doi.org/10.46991/PYSU:B/2009.43.3.007.

Issue

Vol. 43 No. 3 (220) (2009)

Section

Chemistry

License

Copyright (c) 2009 Proceedings of the YSU

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