Реакция #748148

Уравнение реакции

2,2′-methylene-bis(4-ethyl-6-tert-butyl phenol)

potassium

tert-dodecyl mercaptan

styrene

styrene

acrylonitrile

styrene

sodium pyrophosphate

glucose

cumene hydroperoxide

potassium

styrene

acrylonitrile

tert-dodecyl mercaptan

cumene hydroperoxide

sulfuric acid

→

styrene-acrylonitrile

Растворители

water

water

water

Условия реакции

Обработка

1. 1
   Другоеwas produced by the following method
2. 2
   Другоеequipped with a stirrer under a nitrogen flow
3. 3
   Температураheated
4. 4
   Другоеreached 45° C.
5. 5
   Другоеa solution prepared
6. 6
   workup.ADDITIONwere added
7. 7
   Другоеpolymerization of the contents in the flask
8. 8
   Другоеthe polymerization for 1 hr
9. 9
   Другоеthe polymerization of the contents in the flask
10. 10
    Другоеthe polymerization
11. 11
    ДругоеThe obtained reaction product in the form of
12. 12
    Промывкаwashed with water
13. 13
    Промывкаwashed
14. 14
    ПромывкаFurther, the resulting product was washed with water
15. 15
    Другоеdried

Методика

A rubber-reinforced styrene-based resin (C8-6) was produced by the following method. That is, 80 parts of ion-exchanged water, 0.5 part of potassium rosinate, 0.1 part of tert-dodecyl mercaptan, 30 parts (solid content) of a polybutadiene latex (average particle diameter: 2000 Å; gel content: 90%), 10 parts (solid content) of a styrene-butadiene copolymer latex (styrene content: 25%; average particle diameter: 6000 Å), 15 parts of styrene and 5 parts of acrylonitrile were charged into a glass flask equipped with a stirrer under a nitrogen flow, and heated while stirring. When an inside temperature of the flask reached 45° C., a solution prepared by dissolving 0.2 part of sodium pyrophosphate, 0.01 part of ferrous sulfate heptahydrate and 0.2 part of glucose in 20 parts of ion-exchanged water were added thereto. Thereafter, 0.07 part of cumene hydroperoxide was added to the flask to initiate polymerization of the contents in the flask. After conducting the polymerization for 1 hr, 50 parts of ion-exchanged water, 0.7 part of potassium rosinate, 30 parts of styrene, 10 parts of acrylonitrile, 0.05 part of tert-dodecyl mercaptan and 0.01 part of cumene hydroperoxide were continuously added to the flask over 3 hr, and the polymerization of the contents in the flask was further continued for 1 hr, and then 0.2 part of 2,2′-methylene-bis(4-ethyl-6-tert-butyl phenol) was added to the flask to complete the polymerization. The obtained reaction product in the form of a latex was coagulated with an aqueous sulfuric acid solution, washed with water and then washed and neutralized with a potassium hydroxide aqueous solution. Further, the resulting product was washed with water and then dried to obtain a rubber-reinforced styrene-acrylonitrile graft copolymer. It was confirmed that the thus obtained copolymer had a graft percentage of 68%, and the intrinsic viscosity [η] of an acetone-soluble component therein was 0.45 dL/g.

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