Synthesis and Characterization of Sulfonated Anionic Hyperbranched Polyglycerol Oleate Surfactant Based on Oleic Fatty Acid Palm OilYan Irawan, Misri Ghozan, Yenny Meliana, Elnike Kuslianti, Aji Prasetyaningrum, Muhammad Adiguna Rabbuka and Dita Dwi AfifahE3S Web Conf., 503 (2024) 08003DOI: https://doi.org/10.1051/e3sconf/202450308003