Hydroxyethyl methacrylate-ethyl methacrylate → 2-Hydroxyethyl Methacrylate
Reaction equation
C(OCC)(=O)C(C)=C.[C:9]([O:14][CH2:15][CH2:16][OH:17])(=[O:13])[C:10]([CH3:12])=[CH2:11]>C1COCC1>[CH3:12][C:10]([C:9]([O:14][CH2:15][CH2:16][OH:17])=[O:13])=[CH2:11]Participants
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Procedure
In a nitrogen-substituted flask equipped with a reflux condenser and an agitator, 97 parts of ethyl methacrylate (hereinafter abbreviated as “EMA”), 19.5 parts of 2-hydroxyethyl methacrylate (hereinafter abbreviated as “HEMA”), 0.18 parts of azobisisobutylonitrile (hereinafter abbreviated as “AIBN”) and 200 parts of 1,2-dimethoxyethane were added, mixed together, and dissolved. Then, the mixture was allowed to react in a nitrogen current under agitation at 70° C. for 6 hours. The obtained reaction solution was added to n-hexane for the sake of purification by reprecipitation, thereby obtaining 100 parts of copolymer having a composition ratio of EMA/HEMA of 85/15 (molar ratio). The hydroxyl value of the copolymer was 72.1 mgKOH/g, and its weight average molecular weight measured by GPC (column: Shodex GPCA-804, eluent: THF) was 80,000 in terms of standard polystyrene.
Sources & evidence
- ORD record
- ord-505ca443ba28482b8f61f7dfc5e5a3af
- Source dataset
- uspto-grants-2009_09
- Patent number
- US07591505B2
Reaction notes
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