| abstract |
An object of the present invention is to provide a method capable of effectively splitting an oligomer without using a metal catalyst. A method for resolving a (meth) acrylic acid oligomer represented by structure I, comprising: [Chemical 1] A method in which a (meth) acrylic acid oligomer is heated to a temperature of at least 50 ° C. at a pressure of at least 1 bar in the presence of a resolving agent represented by In addition, use as a resolving agent for separating (meth) acrylic acid oligomers of water and, if necessary, protic compounds, an apparatus for synthesizing (meth) acrylic acid, the (meth) acrylic acid of this apparatus Use in production, (meth) acrylic acid produced using this device. [Selection] Figure 2 |