title: Synthesis and characterization of a novel potato starch derivative with cationic acetylcholine groups.
abstract: A novel substance, cationic acetylcholine potato starch (CAPS), was developed for the first time. The synthesis process had three steps: first, carboxymethyl potato starch (CMPS) was synthesized under sodium hydroxide alkaline condition and in isopropyl alcohol organic media; second, bromocholine chloride (BCC) was synthesized with sulphuric acid as a catalytic agent; finally, CAPS was synthesized by the reaction of CMPS with BCC in N,N'-dimethylformamide (DMF). The degree of substitution (DS) of CAPS was determined by ammonia gas-sensing electrode and elemental analysis. CAPS was characterized by Fourier transformed infrared (FTIR) and near infrared (FTNIR) spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD) and differential scanning calorimetry (DSC).
authors.affiliation: Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, and Department of Chemistry, Lanzhou University, Lanzhou 730000, PR China. zhangblzu@163.com
authors.forename: Bing
authors.initials: B
authors.lastname: Zhang
authors.forename: Boli
authors.initials: B
authors.lastname: Ni
authors.forename: Shaoyu
authors.initials: S
authors.lastname: Lü
authors.forename: Dapeng
authors.initials: D
authors.lastname: Cui
authors.forename: Mingzhu
authors.initials: M
authors.lastname: Liu
authors.forename: Honghong
authors.initials: H
authors.lastname: Gong
authors.forename: Fei
authors.initials: F
authors.lastname: Han
mesh_terms: D000109:Acetylcholine / Q000737:chemistry*; D002152:Calorimetry, Differential Scanning; D060326:Chemistry Techniques, Synthetic / Q000379:methods*; D008855:Microscopy, Electron, Scanning; D011198:Solanum tuberosum / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013213:Starch / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D013213:Starch; D000109:Acetylcholine