ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Aqueous polymerization of acrylamide, initiated by the potassium persulfate-thioglycolic acid redox pair, was studied at 30°C under introgen. The initial rate of polymerization R was found to be approximately proportional to the 0,5th power of potassium persulfate concentration within the range of 0,6 to 1,0 mmol-1. R was also found to vary linearly with the monomer concentration between 0,8 · 10-1 and 1,0·10-1 mol l-1 and to increase with the thioglycolic acid concentration in the interval of 3,0 to 4,0 mmol l-1. The activation energy was estimated to be 126 kJ mol-1. Addition ot NaCl, NaF, and (CH3)4NI lowered the initial rate R while MnSO4 increased it. Some aliphatic alcohols were observed to be polymerization retarders.
Additional Material:
8 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1978.021790203
