▎ 摘 要
NOVELTY - A star-type sulfonic acid containing compound (I) is new. USE - Compound (I) useful as surfactant for graphene dispersing agent and clay stabilizer (claimed). ADVANTAGE - The compound (I) increases hydration capacity and thermal stability of the surfactant. DETAILED DESCRIPTION - A star-type sulfonic acid containing compound of formula (I) is new. R1=12-18C long aliphatic chain. An INDEPENDENT CLAIM is included for the preparation of compound (I).