Preparation and characterization of saponified delignified cellulose polyacrylonitrile-graft copolymer

Synthesis and characterization of a novel super-absorbent based on wheat straw

“…It has good commercial and environmental value with the advantages of low cost, renewable and biodegradable polysaccharides for deriving super-absorbents (Pourjavadi and Mahdavinia, 2006;Yoshimura et al, 2005). Recently, a series of new superabsorbents characterized by eco-friendliness and biodegradability were made from some natural materials, such as starch, cellulose, chitosan (Lanthong et al, 2006;Peng et al, 2008;Farag and Al-Afaleq, 2002;Wu et al, 2008), which were used to react through radical graft polymerization with vinyl monomers and crosslinking agent.…”

Characteristics of amine-crosslinked wheat straw and its adsorption mechanisms for phosphate and chromium (VI) removal from aqueous solution

“…In addition, the appropriate chemical composition in agricultural by-products with high contents of carbohydrate polymers (e.g. cellulose and hemicelluloses) suggests a broad potential application to adsorbent production; this is due to the existence of large amount of easily available hydroxyl groups in cellulose and hemicelluloses, which can easily make a series of chemical reactions, such as esterification, etherification and copolymerization (Farag & Al-Afaleq, 2002).…”

Enhanced Absorbent Products Incorporating Cellulose and Its Derivatives: A Review

“…Such results show that it is possible to blur the distinction between what is a surface-modified fiber and what is a true hydrogel. Indeed, a unique class of highly absorbent materials has been achieved by basically skipping the conversion of cellulose to CMC, etc., and just grafting cellulose directly, often in combination with crosslinking (Fanta et al 1987;Yoshinobu et al 1992;Gürdağ et al 2001;Farag and Al-Afaleq 2002;Ibrahim and El-Zawawy 2004;Kim and Mun 2009;Yoshimura et al 2006;Liu et al 2009Liu et al , 2011Feng et al 2010a;Zhang et al 2010;Goetz et al 2011;Shu et al 2011;Kono and Fujita 2012;Pan and Ragauskas 2012;Wu et al 2012;Xie et al 2012;). Thus, hydrogels will be discussed next.…”