mma聚合反应方程式
答:⑴酰化
①加成生成α—甲酰胺基异丙基硫酸氢酯
CH3 CH3
| |
CH3—C—CN+H2SO4——→CH3—C—CONH2 +Q
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OH OSO3H
②转位重排反应,生成MAAS
CH3 CH3
| 浓H2SO4 |
CH3—C—CONH2 ——→ CH2=C—CONH2·H2SO4 —Q
|
OSO3H
⑵酯化
①MAAS水解(shuǐjiě),生成AMA。
CH3 CH3
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CH2=C—CONH2·H2SO4+H2O→CH2=C—COOH+NH4HSO4 +Q
②AMA酯化,生成(shēnɡ chénɡ)MMA。
CH3 CH3
| |
CH2=C—COOH+CH3OH→CH2=C—COOCH3 —Q。