使用高效液相色谱仪对腰果双酚醚化后制备出产品进行定性定量分析。按n(酚羟基):n(ECH):n(四乙基溴化铵)=1:9:0.003的摩尔比称取腰果酚,环氧氯丙烷,四乙基溴化铵(催化剂用等质量的去离子水溶解)加入四口烧瓶中,置于油浴锅中150℃回流搅拌10min,加入5g的33 wt.%的NaOH溶液使PH呈碱性,恒温40min。使用液相色谱仪在25℃温度下,以甲醇为流动相测醚化产物氯醚醇的液相色谱图。使用甲醇稀释样品至780倍,测其液相色谱图,确定腰果双酚醚化程度。重复测试
Qualitative and quantitative analysis of the product prepared by etherification of cashew bisphenol using high-performance liquid chromatography. Weigh cashew phenol, epichlorohydrin, and tetraethyl ammonium bromide in a molar ratio of n (phenolic hydroxyl): n (ECH): n (tetraethyl ammonium bromide)=1:9:0.003, and add them to a four necked flask. Place them in an oil bath at 150 ℃ and stir for 10 minutes under reflux. Add 5g of 33 wt.% NaOH solution to make the pH alkaline, and maintain the temperature for 40 minutes. Using a liquid chromatograph at 25 ℃, use methanol as the mobile phase to measure the liquid chromatography of E-Cardol and the etherification product chloroetherol. Dilute the sample to 780 times with methanol and measure its liquid chromatography to determine the degree of etherification of cashew bisphenol. Repeat testing