Study on the morphology and temperature-sensitivity of poly(N-isopropylacrylamide-co-acrylic acid) microgel by atomic force microscopeXiao Wang, Yana Li, Guoquan Zhang and Beihai WangE3S Web Conf., 267 (2021) 02007DOI: https://doi.org/10.1051/e3sconf/202126702007