文献类型：期刊文献

中文题名：用PPA制备4,6-二氨基间苯二酚磷酸盐及其稳定化

英文题名：Preparation of 4,6-Diaminoresorcinol Diphosphate Salt by PPA and Its Stabilization

作者：庄启昕[1];承建军[1];李欣欣[1];刘子涛[1];韩哲文[1]

机构：[1]华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海200237

年份：2007

卷号：33

期号：1

起止页码：42

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;EI(收录号：20071510544960);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：上海市重点学科建设项目资助

语种：中文

中文关键词：4,6-二氨基间苯二酚磷酸盐;多聚磷酸;稳定化

外文关键词：4,6 diaminoresorcinol diphosphate; polyphosphoric acid; stabilization

摘要：为改进4,6-二氨基间苯二酚磷酸盐的合成工艺,采用多聚磷酸(PPA)法制备磷酸盐,并对其结构进行表征。结果表明:PPA法制磷酸盐的合成工艺,可以使反应时间从几天缩短到几个小时,反应产率从79.46%提高到91.12%。以次亚磷酸为还原剂对磷酸盐单体进行稳定化的研究表明:稳定后的磷酸盐在室温条件下储藏一个月后,基本不发生氧化。将稳定化后的单体和对苯二甲酸(TA)在PPA的介质中进行缩聚反应可以得到具有高聚合度(特性粘数[η]=17 dL/g)的聚亚苯基苯并二噁唑(PBO)。
In order to improve the synthesis of 4,6-diaminoresorcinol diphosphate, we prepared 4,6- diaminoresorcinol diphosphate by polyphosphoric acid and characterized its structure. The preparation of 4,6-diaminoresorcinol diphosphate by PPA method reduce reaction time from two or three days to some hours and enhance the yield from 79.46% to 91. 12%. To enhance the stability of 4,6-diaminoresorcinol diphosphate, HaPO2 was used for the stabilization of 4,6-diaminoresorcinol diphosphate. The study manirests that 4,6-diaminoresorcinol diphosphate is stable for oxidization after being placed one month. PBO spinning solution was prepared from 4,6-diaminoresorcinol diphosphate in polyphosphoric acid by solution poly-condensation. The polymerization degree of obtained PBO is high and the inherent viscosity is 17 dL/g.