摘要
2,6-萘二甲酸(简称2,6-NDCA)结构上具有高度的对称性,是合成多种高性能含萘聚合物的重要单体。由2,6-NDCA与乙二醇反应得到聚2,6-萘二甲酸二乙酯(简称PEN),其多方面性能均优于对苯二甲酸二乙酯(PET)。2,6-萘二甲酸粗产物中有许多杂质存在,不同的制备方法杂质种类和含量也不完全相同,这将直接影响聚合反应和PEN的质量。因此,2,6-萘二甲酸必须进行纯化,使之达到聚合级的质量要求。综述几种提纯2,6-萘二甲酸的方法。
The 2,6-naphthalenedicarboxylic acid （2,6-NDCA） which has a highly symmetric structure, is an important monomer for the prepara- tion of various polymers with high performance containing naphthalene. The performances of poly （ethylene glycol）2,6-naphthalate （PEN） which is synthesized by 2,6-NDCA and ethylene glycol are superior to that of polyethylene terephthalate （PET）. There are many kinds and various amounts of impurities in crude 2,6-NCCA which are dependent on the different synthetic processes and this will influence the following polymerization and the quality of PEN directly. Therefore the 2,6-NDCA must be purified before reaction to meet the quality request. Several purification methods of 2,6- NDCA are reviewed.
出处
《化学与粘合》
CAS
2012年第4期28-30,共3页
Chemistry and Adhesion
关键词
2
6-萘二甲酸
聚2
6-萘二甲酸二乙酯
聚合反应
提纯
2,6-naphthalenedicarboxylic acid
poly（ethylene glycol）2,6-naphthalate
polymerization
purification.
