Benzoyl Peroxide → 2-Propenoic acid, butyl ester, polymer with 2-ethylhexyl 2-propenoate

HRID 2119285Notes

Reaction equation

[C:1]([O:5][CH2:6][CH2:7][CH2:8][CH3:9])(=[O:4])[CH:2]=[CH2:3].[C:10]([O:14][CH2:15][CH:16]([CH2:21][CH3:22])[CH2:17][CH2:18][CH2:19][CH3:20])(=[O:13])[CH:11]=[CH2:12].C(S)CCCCCCCCCCC.C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1>C1(C)C=CC=CC=1>[C:1]([O:5][CH2:6][CH2:7][CH2:8][CH3:9])(=[O:4])[CH:2]=[CH2:3].[C:10]([O:14][CH2:15][CH:16]([CH2:21][CH3:22])[CH2:17][CH2:18][CH2:19][CH3:20])(=[O:13])[CH:11]=[CH2:12]

Participants

Conditions

Temperature: 80 °C

Procedure

A 1 l reaction vessel equipped with a reflux condenser, stirrer, thermometer, and dropping funnel was charged with 75 g of n-butyl acrylate, 25 g of 2-ethylhexyl acrylate, 4 g of dodecylmercaptan, 1 g of benzoyl peroxide, and 200 g of toluene. The mixture was heated to 75-85° C. A mixture of 75 g of n-butyl acrylate, 25 g of 2-ethylhexyl acrylate, and 1 g of benzoyl peroxide was continuously dropped while stirring the mixture at this temperature to carry out the polymerization reaction for three hours. After the reaction, the solvent and low boiling point matters were removed by evaporation under reduced pressure, thereby obtaining an n-butyl acrylate/2-ethylhexyl acrylate copolymer. This copolymer is designated as “Copolymer (C-1)”.

Workup

customA 1 l reaction vessel
customequipped with a reflux condenser, stirrer
additionwas continuously dropped
customthe polymerization reaction for three hours
customAfter the reaction
customthe solvent and low boiling point matters were removed by evaporation under reduced pressure

Sources & evidence

ORD record: ord-5e56e8ae480c4fc8bbbc9a32a0cbc66b
Source dataset: uspto-grants-2004_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06685869B2

Reaction notes

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