Effect of different additives on the phase separation behavior and thermodynamics of p-tert-alkylphenoxy poly (oxyethylene) ether in absence and presence of drug

Marzia Rahman; Md. Anamul Hoque; Mohammed Abdullah Khan; Malik Abdul Rub; Abdullah M. Asiri

doi:10.1016/j.cjche.2017.10.011

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Effect of different additives on the phase separation behavior and thermodynamics of p-tert-alkylphenoxy poly (oxyethylene) ether in absence and presence of drug

Chemical Engineering Thermodynamics | Updated：2026-01-06

- Effect of different additives on the phase separation behavior and thermodynamics of p-tert-alkylphenoxy poly (oxyethylene) ether in absence and presence of drug
- Chinese Journal of Chemical Engineering Vol. 26, Issue 5, Pages: 1110-1118(2018)
- Affiliations：
  
  1. 2 Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
  2. 3 Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2017.10.011
  CLC：
- Published：2018
- Accepted：
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-alkylphenoxy poly (oxyethylene) ether in absence and presence of drug[J]. Chinese Journal of Chemical Engineering, 2018, 26(5): 1110-1118.
DOI：

-alkylphenoxy poly (oxyethylene) ether in absence and presence of drug[J]. Chinese Journal of Chemical Engineering, 2018, 26(5): 1110-1118. DOI： 10.1016/j.cjche.2017.10.011.

摘要

Abstract

Cloud point (CP) determinations of 4-(1

3-tetramethylbutyl)phenyl-polyethylene glycol (TX-100 (nonionic surfactant)) was carried out in aqueous as well as in the attendance of drug (ceftriaxone sodium trihydrate (CFT))/(CFT + different inorganic salts) and discussed thoroughly. Nonionic surfactants are employed extensively in different formulations. In aqueous solution

the values of CP of TX-100 are obtained to increase by means of enhancing of their concentration in the solution. The CP values of TX-100 solutions were found to decrease in the presence of drug and their values decrease more with rising concentrations of the drug. The values of CP of CFT and TX-100 mixtures were found to further decrease in the attendance of inorganic salts in comparison to their absence. The effect of different sodium salts in decreasing CP values of TX-100 was achieved in the following order:NaCO

NaCl. However

in the case of potassium and ammonium salts

the decreasing order obtained is K

KCO

KCl and (NH

)

Cl respectively. Various thermodynamic parameters for example standard free energy (ΔG

)

standard enthalpy (ΔH

) as well as standard entropy (ΔS

) changes of phase separation were also evaluated and discussed in detail on the basis of their behavior.

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