| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new hydrogelling agent with which water is gelated in a mild condition, and which includes a compound for forming a gel stable in a wide pH region. <P>SOLUTION: The hydrogelling agent includes a squaric acid derivative represented by general formula [I] [wherein R represents an alkyl group optionally with an substituent, an alkoxy group optionally with an substituent, an aralkyl group optionally with an substituent, a heterocyclic alkyl group optionally with an substituent, an aryl group optionally with an substituent, an aryloxy group optionally with an substituent, or a heterocyclic group optionally with an substituent; and X represents a hydrogen atom or an alkali metal atom]. <P>COPYRIGHT: (C)2013,JPO&INPIT |
