Potentiometric analysis of chloride polyhexamethyleneguanide pK-spectroscopy

Authors

  • Tetiana S. Chmilenko Oles Honchar Dnipropetrovsk National University, Ukraine
  • Ekaterina A. Chebrova Oles Honchar Dnipropetrovsk National University, Ukraine
  • Fedor A. Chmilenko Oles Honchar Dnipropetrovsk National University, Ukraine

DOI:

https://doi.org/10.15421/081321

Keywords:

potentiometer method, pK-spectrum, regression analysis

Abstract

The mathematical analysis of data of titration of chloride polyhexamethyleneguanide (PGMG) containing repeating functional group, capable to a deprotonation carried out. For the characteristic of interparticle cooperation in system water - PGMG the method of pK-spectroscopy is offered for using. The metod based on the use of linear regression analysis with restrictions on the non-negative solutions. The experimental curve of electrometric titration of PGMG is received and transformed to function of distribution of ionogenic groups of titration object on sizes рК acid ionization (pK-spectrum). The method of pK-spectroscopy the possibility of using to predict the spatial structure and conformational transitions of polycations. The interrelation of constants of dissociations of PGMG and transition a globule-ball in water solutions is studied. 

References

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Published

2014-03-28

Issue

Vol. 21 No. 20 (2013): Bulletin of Dnipropetrovsk University. Series Chemistry

Section

Analytical Chemistry

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Copyright (c) 2014 Vìsnik Dnìpropetrovsʹkogo unìversitetu. Serìâ Hìmìâ

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