Kinetics of the potassium persulfate-initiated inverse emulsion polymerization of sodium acrylate solutions

✍ Scribed by Pei-Yun Jiang; Zhi-Cheng Zhang; Man-Wei Zhang

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 341 KB
• Volume: 34
• Category: Article
• ISSN: 0887-624X
• DOI: 10.1002/(sici)1099-0518(199603)34:4<695::aid-pola17>3.0.co;2-j

✦ Synopsis

The kinetics of the K2S208-initiated inverse emulsion polymerization of aqueous sodium acrylate solutions in kerosene with

Span 80 as the emulsifier has been studied. The conversion-time curves are S-shaped. The following expressions have been obtained for the maximum rate of polymerization and the molecular weight of the polymers under the experimental conditions investigated R,,, oc [KzSz0s]0~78[sodium a~rylate]'.~[Span 801°.', M u cc [ K2S20s]-0.37[ sodium a ~r y l a t e ] ~. ~[ Span 80]-0.2. The activation energy for the maximum rate of polymerization is 94.8 kJ mol-'. The results suggest a monomer-droplet-nucleation mechanism for the system studied.