Properties of Zwitterionic Sulfobetaine Gels Containing Different Numbers of Methylene UnitsEva Oktavia Ningrum, Shuji Sakohara, Takehiko Gotoh, Suprapto and Nurlaili HumaidahMATEC Web Conf., 333 (2021) 01002DOI: https://doi.org/10.1051/matecconf/202133301002