Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, and Department of Chemistry, Lanzhou University, Lanzhou 730000, PR China.
Int J Biol Macromol. 2012 Apr 1;50(3):701-6. doi: 10.1016/j.ijbiomac.2011.12.031. Epub 2012 Jan 13.
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).
首次开发了一种新型物质，阳离子乙酰胆碱马铃薯淀粉（CAPS）。该合成过程分为三个步骤：首先，在氢氧化钠碱性条件下并在异丙醇有机溶剂中合成羧甲基马铃薯淀粉（CMPS）；其次，以硫酸为催化剂合成溴化胆碱（BCC）；最后，CMPS 与 BCC 在 N，N'-二甲基甲酰胺（DMF）中反应合成 CAPS。CAPS 的取代度（DS）通过氨气敏电极和元素分析来确定。CAPS 的特性通过傅里叶变换红外（FTIR）和近红外（FTNIR）光谱、扫描电子显微镜（SEM）、X 射线衍射（XRD）和差示扫描量热法（DSC）进行了表征。
