Реакция #1013526

Уравнение реакции

adipic acid

1,2,3,4-butane tetracarboxylic acid

vinylcyclohexene dioxide

tricarballylic acid

→

tricarballylic acid

carbon dioxide propylene oxide

Условия реакции

Обработка

1. 1
   workup.ADDITIONintroduced (into the reactor)
2. 2
   ДругоеThen, polymerization
3. 3
   Другоеthe catalyst was removed
4. 4
   Другоеresulting in pure copolymer
5. 5
   ДругоеTABLE 3 summarizes results of the polymerization

Методика

After fixing a chain transfer agent to control a molar fraction of —COOH group to 45 relative to a molar fraction of the catalyst and then introducing adipic acid, 5.9 mg (Entries 1 to 5); tricarballylic acid, 5.1 mg (Entries 6 to 10); 1,2,3,4-butane tetracarboxylic acid, 4.7 mg (Entries 11 to 15)) into a reactor, vinylcyclohexene dioxide was weighed to numeral values listed in TABLE 3, relative to the molar fraction of the catalyst and then introduced (into the reactor). Then, polymerization was executed and the catalyst was removed according to the same procedures as described in Example 1, resulting in pure copolymer. TABLE 3 summarizes results of the polymerization. FIG. 2 shows GPC curves of a copolymer obtained by carbon dioxide/propylene oxide copolymerization in the presence of tricarballylic acid (C3H5(CO2H)3) and diepoxide, wherein reference numeral in each curve denotes an entry number in TABLE 2.

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