Synthesis and Characterization of Emulsion Polymerizable Surfactant Based on Ethoxylate Alcohol Maleate

Document Type : Original Article

Authors

1 Helwan University, Faculty of Science, Chemistry Department, Ain-Helwan, 11795 Cairo, Egypt.

2 BBC Industrial Chemicals Co. Ltd., Accra, Ghana

3 Polymer Chemistry Dept., National Center for Radiation Research and Technology, Atomic Energy Authority, P.O. Box 29 Nasr City, Cairo, Egypt

Abstract

A novel maleate surfmer was synthesized through the esterification of alcohol ethoxylate ethylene oxide propylene oxide (EO/PO) block copolymers with maleic anhydride. The structure of the non-ionic maleate ethoxylate surfmer was confirmed by mass spectrum analysis, the critical micelle concentration (CMC) of the prepared surfmer was found to be 0.0053mol/l whereas its polymerization reaction order was found to be (1.44) for vinyl acetate (VAc) and (1.3) for butyl acrylate (BuA). The volume average diameter Dv ̅ of poly (VAc) and poly (BuA) decreases with increasing surfmer concentration; however, the latter shows a slightly bigger particle size under the same conditions. The number of polymer particles (Nt) was found to increase with increasing surfmer concentration. When compared to poly (BuA), poly (VAc) has more defined and spherical particles. Increasing the surfactant concentration from 4.2 x 10-3 to 8.4 x 10-3 (mol/l) reduces the surface charge density of poly(BuA) and poly(VAc) from 115 to 81 and 85 to 36 microcolumb, respectively. Besides, Poly (BuA) shows greater surface charge density and greater stability than poly (VAc) at the same concentration. The obtained results recommend the use of prepared EO/PO maleate surfmer for the development of high-solid lattices of (VAc) homopolymer and poly(VAc/BuA) copolymers for superior adhesion, water resistance, and mechanical stability when compared with similar commercial types of wood adhesive and emulsion paint.

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Egyptian Journal of Chemistry
Volume 65, Issue 132 - Serial Number 13
Special Issue: Chemistry and Global Challenges (Part B)
December 2022
Pages 1369-1378

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History

  • Receive Date: 23 August 2021
  • Revise Date: 27 May 2022
  • Accept Date: 21 June 2022

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