Effect of the grafting degree on the properties of copolymers based on polyacrylic acid and methylcellulose - Nurpeisova, Zhansaya; Kasymova, Dariya; Mangazbaeva, Rauash; Shaikhutdinov, Erengaiyp; Mun, Grigoriy; Khutoryanskiy, Vitaliy (Chemical Bulletin of Kazakh National University, 2015)