Seminar Paper

Paper Information

video

sound

Persian Version

View:

1,386

Download:

Cites:

Information Seminar Paper

Title

EFFECT OF ELECTROLYTE ON POLYSTYRENE CHLOROMETHYLATION IN MICELLAR CATALYTIC SYSTEM

Writers

AFKAR A. | JAVADIAN S.

Pages

 Start Page | End Page

Abstract

 IN THIS RESEARCH, THE SOLUBILITY OF POLYSTYRENE IN THE AQUEOUS SOLUTION OF THE CATIONIC, ANIONIC AND NONIONIC SURFACTANTS WITH AND WITHOUT ELECTROLYTE WAS INVESTIGATED USING UV-VIS SPECTROPHOTOMETRY METHOD. USING SPECTROSCOPIC DATA, THE SOLUBILITY AS A FUNCTION OF DIFFERENT CONCENTRATIONS OF SURFACTANTS AND ELECTROLYTE WAS PLOTTED. IT WAS FOUND THAT, FOR THE SURFACTANT MONOMER CONCENTRATION 10 TIMES OF CMC, A MAXIMUM SOLUBILIZATION OF POLYSTYRENE IN AQUEOUS PHASE OCCURRED IN THE PRESENCE OF A CERTAIN CONCENTRATION OF ELECTROLYTES. THE REACTION RATE CONSTANT OF CHLOROMETHYLATION OF POLYSTYRENE IN AQUEOUS SOLUTION OF SURFACTANTS WAS DETERMINED BASED ON THE RESULTS OF SOLUBILITY DIAGRAMS. EXPERIMENTAL RESULTS SHOW THAT THE SURFACTANT MICELLES INCREASE THE POLYSTYRENE CHOLOROMETHYLATION REACTION RATE BY SOLUBILIZATION OF POLYSTYRENE DISTRIBUTED IN CARBON TETRACHLORIDE PHASE AND BRINGING INTO AQUEOUS PHASE. MICELLAR CATALYSIS IS AN EFFECTIVE WAY FOR POLYSTYRENE CHLOROMETHYLATION. CHLOROMETHYLATION DEGREE IS MEASURED BY DETERMINING THE AMOUNT OF CHLORIDE WHICH IS PRODUCED FROM REACTION BETWEEN CHLOROMETHYLATED POLYSTYRENE AND TERTIARY AMINE USING AN ION-SELECTIVE ELECTRODE (ISE).

Cites

  • No record.
  • References

  • No record.
  • Related Journal Papers

  • No record.
  • Related Seminar Papers

  • No record.
  • Related Plans

  • No record.
  • Recommended Workshops