ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
The temperature rise during the adiabatic polymerization of acrylamide in water has been used to characterize the kinetic parameters. Based on initial rate data, the following equation is obtained: \documentclass{article}\pagestyle{empty}\begin{document}$$ - \frac{{d\left[ {\rm M} \right]}}{{dt}} = 99.7\exp \left[ {5767\left( {\frac{1}{{303.6}} - \frac{1}{T}} \right)} \right]\left[ {\rm M} \right]^{1.53} \left[ {{\rm PS}} \right]^{0.53} \left[ {{\rm BS}} \right]^{0.47} $$\end{document} where concentrations of monomer, persulfate, and bisulfite are in mole/kg, T is in K, and t is in min. The order with respect to monomer is confirmed by an analysis of the entire temperature-time record during polymerization. The persulfate-bisulfite couple was studied also in the absence of monomer. Concentrations were measured by UV absorbance and by permanganate titration. The reaction can be represented by: \documentclass{article}\pagestyle{empty}\begin{document}$$ - \frac{{d\left[ {{\rm S}_2 {\rm O}_{\rm 8}^{\rm = } } \right]}}{{dt}} = - \frac{{d\left[ {{\rm HSO}_{\rm 3}^{\rm - } } \right]}}{{dt}} = 4.38\exp \left[ {7900\left( {\frac{1}{{302}} - \frac{1}{T}} \right)} \right]\left[ {{\rm S}_{\rm 2} {\rm O}_{\rm 8}^{\rm = } } \right]\left[ {{\rm HSO}_{\rm 3}^{\rm - } } \right] $$\end{document} where concentrations are in mole/liter, T is in K, and t is in min.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1981.070260220
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