UREA TYPE HYDROGELLING AGENT

摘要

PROBLEM TO BE SOLVED: To provide a hydrogelling agent having a new chemical structure and a hydrogel.SOLUTION: A urea derivative is represented by formula (1) (wherein X is OH or NH; k is an integer of 0-4; m is an integer of 6-100; n is an integer of 2-6; Ris a 8-22C hydrocarbon group bonded through an oxygen atom; Ris H or a 1-22C hydrocarbon group bonded through an oxygen atom; Ris H or a 1-22C hydrocarbon group bonded through an oxygen atom; Rand Rare not H at the same time) and a specific formula. A hydrogelling agent comprises a urea derivative represented by formula (1) and a specific formula. A hydrogel comprises the hydrogelling agent and water.