| 摘要 |
Provided are: an alkylene oxide-modified polyfunctional (meth)acrylate which has improved the problems of poor handling properties due to high crystallinity or high viscosity, high curing shrinkage rate and the like, while having improved light sensitivity, surface hardness, contamination resistance and the like; and a reactive composition which contains the alkylene oxide-modified polyfunctional (meth)acrylate. This alkylene oxide-modified polyfunctional (meth)acrylate has a structure represented by general formula (I). In general formula (I), R represents a substituent that is represented by general formula (II); AO represents one or more alkylene oxide units selected from among alkylene oxide units represented by -CH2CH2O-, -CH2CH(CH3)O-, -CH2CH2CH2CH2O- or -CH2CH(C2H5)O-; l representing the average polymerization degree of the added alkylene oxide units satisfies 0 < l <= 5; and m has an average of more than 0 but 6 or less, and n and o respectively have an average from 0 to 6 (inclusive), with the total of m, n and o being 6. In general formula (II), R2 represents a hydrogen atom or a methyl group. |
