تفاعل #3149
ord-889d3fb76dc4464094f72ea8e4bc1474
معادلة التفاعل
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المعالجة
- 1أخرىThe solution was sparged with nitrogen gas
- 2أخرىThe nitrogen sparge
- 3أخرىpurge
- 4أخرىpolymerization
- 5درجة الحرارةby raising the temperature of the solution to 44° C
- 6workup.STIRRINGStirring
- 7درجة الحرارةheating
- 8workup.WAITwere continued for about 21 hours
الإجراء التجريبي
A 10% solution of poly(AMD/DMAEA.MeCl/EA) was prepared as follows: 13.87 parts of 53.58% aqueous acrylamide (AMD), 25.31 parts of a 80% aqueous solution of ethacryloxyethyltrimethylammonium chloride (DMAEA.MeCl), 2.33 parts of ethyl acrylate (EA), 0.3 part EDTA, 258.16 parts of deionized water and 0.030 parts of VA-044 were added to a suitable glass vessel. The solution was sparged with nitrogen gas and stirred for about one hour at ambient temperature. The nitrogen sparge was changed to a nitrogen purge, and polymerization was initiated thermally by raising the temperature of the solution to 44° C. Stirring and heating were continued for about 21 hours to give a clear, viscous solution of poly(AMD/DMAEA.MeCl/EA) having a standard viscosity of about 2.0 centipoise.