摘要
分别采用端基滴定法和核磁共振法对所合成的聚磷酸铵聚合度(n)进行了分析测试,发现两种方法对同一样品分析结果存在很大的差异。通过对两种方法的分析原理和分析测试过程的比较,认为端基滴定法不适合测定平均聚合度高的聚磷酸铵,而核磁共振法可以测定任意聚合度的聚磷酸铵,核磁共振法简便,快速,准确。
Determinate the polymerization degree（n） of ammonium polyphosphatc （APP） by end-group titration and 31P nuclear magnetic resonance spectroscopy （NMR）, respectively. The results of the each sample are varied. Conclusion was made after studying the principles and processes of the two methods： end-group titration is not suitable for APP with high polymerization degree, while NMR, which is convenient, quick and accurate, is suitable for APP with any polymerization degree.
出处
《广东化工》
CAS
2010年第4期171-173,共3页
Guangdong Chemical Industry
关键词
聚磷酸铵
端基滴定法
核磁共振磷谱
聚合度
ammoniumpolyphosphate
end-grouptitration
31PNMR
polymerization degree
