| abstract |
Provided is a novel polyalkylene glycol derivative represented by general formula (1) which exhibits an excellent performance as a surfactant. In formula (1), EO represents an oxyethylene group; AO represents a C3-4 oxyalkylene group, provided that EO and AO are bonded in a block form; a and b represent the average number of EO moles added and m represents the average number of AO moles added, provided that a+b is 0-100, m is 10-100, and the ratio by mass of (AO)m to the total mass of (EO)a, (EO)b and (AO)m is 50-100 mass%; and R1 represents a hydrogen atom, a C1-4 alkyl group or a C1-4 acyl group. |