STUDIES ON PHYSICAL PROPERTIES OF SOME POLYMERS IN SOLUTIONS
GABER MAHMOUD EL- EN ANY;
Abstract
The kinetics microemulsion polymerization of styrene usmg potassium persulphate (KPS) /p-methyl benzaldehyde sodium bisulphite (MeBSBS) adduct as developed redox pair initiation system was studied at different variables initiator, emulsifier, monomer concentrations and at different temperatures. The rate of microemulsion polymerization and maximum conversion were found to change with redox initiator, monomer and emulsifier concentrations, and temperature variation.
The rate of polymerization was found to be dependent on the initiator, monomer and emulsifier concentrations to the powers 1.4, 0.83, and -0.77 respectively. The apparent Arrhenius activation energy Ea estimated for the microemulsion polymerization system was
6.5 x 104 J/mol.
The rheological measurements for the prepared microemulsion were carried out to investigate the effect of preparing parameters on the rheological behavior of the polystyrene microemulsions.
The rhealogical flow curves of the micremulsion polystyrenes prepared at different temperature were carried out, and it was found that . the plastic viscosity and Bingham yield values of the flow curves increased with the increasing of the reaction temperature.
The rate of polymerization was found to be dependent on the initiator, monomer and emulsifier concentrations to the powers 1.4, 0.83, and -0.77 respectively. The apparent Arrhenius activation energy Ea estimated for the microemulsion polymerization system was
6.5 x 104 J/mol.
The rheological measurements for the prepared microemulsion were carried out to investigate the effect of preparing parameters on the rheological behavior of the polystyrene microemulsions.
The rhealogical flow curves of the micremulsion polystyrenes prepared at different temperature were carried out, and it was found that . the plastic viscosity and Bingham yield values of the flow curves increased with the increasing of the reaction temperature.
Other data
| Title | STUDIES ON PHYSICAL PROPERTIES OF SOME POLYMERS IN SOLUTIONS | Other Titles | دراسات على الخواص الطبيعية لبعض البوليميرات فى المحاليل | Authors | GABER MAHMOUD EL- EN ANY | Issue Date | 1997 |
Recommend this item
Similar Items from Core Recommender Database
Items in Ain Shams Scholar are protected by copyright, with all rights reserved, unless otherwise indicated.