反应详情

An isoprene-methyl methacrylate copolymer is prepared according to Example 17, except that the polymerization temperature is maintained between 25°-28° C. by cooling with ice water. The quantities of the reactants are as follows: 50 grams isoprene, 28 grams methyl methacrylate, 0.16 grams n-dodecyl mercaptan, 0.16 grams cumene hydroperoxide, 150 ml. deionized water, 0.30 grams ferrous sulfate heptahydrate, 0.28 grams tetrasodium pyrophosphate, 0.78 grams sodium lauryl sulfate, and 2.43 grams Triton X-405® (70% aqueous). 12 grams of the copolymer are recovered and the NMR spectrum of the copolymer shows that the copolymer contains 66.7 mole percent isoprene.

1. temperatureis maintained between 25°-28° C.
2. custom12 grams of the copolymer are recovered