title: New carboxymethyl cellulose tosylate with low biodeterioration.
abstract: Microbial biodegradation and biodeterioration of cellulose based thickeners is a serious problem in industry. A new tosylic ester of carboxymethyl cellulose (TsCMC) was prepared with anhydride of p-toluensulphonic acid. The TsCMC has improved rheological properties, higher viscosity and pseudoplasticity, superior emulsification properties and decreased wettability compared to parental CMC. The biodeterioration of TsCMC was significantly reduced compared to parental CMC or other commercially used modified cellulose thickeners in water based paint industry. Improved rheological properties combined with low biodeterioration make TsCMC a promising new material for industrial applications with a potential to reduce the use of hazardous antimicrobial agents.
authors.affiliation: JUB-H d. d., Dol pri Ljubljani 28, 1262 Dol pri Ljubljani, Slovenia.
authors.forename: Janez
authors.initials: J
authors.lastname: Orehek
authors.affiliation: Biotechnical Faculty of Ljubljana University, Chair of Microbiology, Večna pot 111, 1000 Ljubljana, Slovenia.
authors.forename: Klemen
authors.initials: K
authors.lastname: Petek
authors.affiliation: Biotechnical Faculty of Ljubljana University, Chair of Microbiology, Večna pot 111, 1000 Ljubljana, Slovenia.
authors.forename: Iztok
authors.initials: I
authors.lastname: Dogsa
authors.affiliation: Biotechnical Faculty of Ljubljana University, Chair of Microbiology, Večna pot 111, 1000 Ljubljana, Slovenia. Electronic address: david.stopar@bf.uni-lj.si.
authors.forename: David
authors.initials: D
authors.lastname: Stopar
mesh_terms: D001419:Bacteria / Q000378:metabolism; D001673:Biodegradation, Environmental; D002266:Carboxymethylcellulose Sodium / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry / Q000378:metabolism; D045703:Emulsifying Agents; D010150:Paint; D012212:Rheology; D014783:Viscosity; D017155:Wettability
chemical_list: D045703:Emulsifying Agents; D002266:Carboxymethylcellulose Sodium
keywords: Biodegradation; Biodeterioration; CMC; Tosylate; Viscosity