摘要
初步探讨了2,6-萘二甲酸(NDCA)与乙二醇(EG)酯化反应合成2,6-萘二甲酸乙二醇酯的工艺因素,筛选出钨酸钠作催化剂较合适,其用量为2%(g gNDCA),反应温度为215℃,EG与NDCA摩尔配比为3,反应时间为4h。对NDCA与EG酯化反应产物进行红外光谱分析、核磁共振分析,确定反应产物是目标产物。
The processing conditions of synthesis of PEN were discussed and the optimum reaction conditions were determined in this paper.The preferable catalyst used is sodium tungstate and the amount is 2%g/g NDCA.The reaction temperature is 215℃.The ratio of EG to NDCA is 3.The time for the reaction is about 4 hours.The infrared spectra and nuclear magnetic resonance spectroscopy analyses were carried out ot the production of esterification of NDCA with EG.The conclusion was drawn that the production poly(ethylene 2,6-naphthalate)which is objective production.
出处
《沈阳教育学院学报》
2005年第1期115-119,共5页
Journal of Shenyang College of Education
