| 配方类型： |
RUBBER, PLASTICS AND WAXES |
| 配方说明： |
Ethyl Acrylate Polymer |
| 配方组成： |
"Triton" X-200/96
Ethyl Acrylate (15 ppm MEHQ)/800
Deionized Water/1000
Ammonium Persulfate/1.6 |
| 配制方法： |
In a 64-oz. (2-qt.) bottle, prepare an emulsion by adding the above ingredients in the given order, holding out 200 ml. of water. This amount of water and 200 ml. of the monomer emulsion are placed in a 3-1.
flask fitted as described above. The reaction mixture is stirred and heated in a water bath maintained at 92'C. until the internal temperature reaches 82'C. Refluxing begins at this temperature, indicating a vigorous polymerization, and the temperature rises to 90'C.
in 8 minutes. When refluxing subsides, the remaining monomer emulsion is added slowly in 1.5 hours; the reaction mixture is heated to maintain reflux and the internal temperature holds at 88-94'C. After the addition is finished, the temperature is raised to 97'C. to complete the conversion of monomer. The product is then cooled to room temperature with stirring and strained through cheesecloth. |
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