P 49 Pestov, A. V. Synthesis in a gel as a new procedure for preparing carboxyethyl chitosan [Text] / A. V. Pestov, N. A. Zhuravlev, Yu. G. Yatluk // Russian Journal of Applied Chemistry. - 2007. - Vol. 80, № 7. - P1154-1159. - Bibliogr. : p. 1159 (14 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ХИТОЗАНЫ -- ГЕЛИ -- ЯДЕРНЫЙ МАГНИТНЫЙ РЕЗОНАНС Аннотация: A fundamentally new procedure of synthesis of carboxyethyl chitosan in a physical gel, ensuring higher degree of substitution at lower temperatures and lower consumption of time and chemicals, compared to the existing procedures, was developed. The structure of the resulting products was examined by diffuse reflection IR and 1H NMR spectroscopy in solutions and also 1H and 7Li broad line NMR Полный текст |