摘要
通过以L-天冬氨酸为原料的热缩催化聚合、以马来酸酐和碳酸铵为原料的常规合成和微波幅照合成等不同方法制备了聚天冬氨酸。分别通过红外光谱技术和粘度法对产物进行了结构和分子量的表征,并研究了每种制备方法对产物的产率、分子量及其阻垢性能的影响。结果表明所有聚合产物均具有聚天冬氨酸的结构特征。虽然由L-天冬氨酸法制备的产物产率和分子量最高,但是由微波辐照合成所得产物的阻垢性能最佳。
Polyaspartic acid was prepared by various ways, such as pyrocondensation catalyze polymenzation of L-aspartic acid, common and microwave radiation synthesis of maleic anhydride and ammonium carbonate. The structure and molecular weight of the products were characterized by IR and viscometry respectively. The influence of each preparation method on the product yield, the molecular weight and the scale inhibition performance of products were studied. The results indicated that all of the products had the typical structure characteristic of polyaspartic acid. Although the product prepared from L-aspartic acid had the highest product yield and the molecular weight, the one made from maleic anhydride by microwave radiation synthesis was best in the scale inhibition.
出处
《合成材料老化与应用》
2008年第1期29-34,共6页
Synthetic Materials Aging and Application
关键词
聚天冬氨酸
热缩催化聚合
微波辐照合成
比较
polyaspartic acid
pyrocondensation catalyze polymerization
microwave radiation synthesis
comparison
