波谱学杂志 ›› 1996, Vol. 13 ›› Issue (5): 417-422.

• 研究论文 • 上一篇    下一篇

含稳定氮氧自由基聚磷酸酯的合成及其弛豫性能研究

俞开潮, 卓仁禧   

  1. 武汉大学化学系, 武汉 430072
  • 收稿日期:1996-03-25 修回日期:1996-04-26 出版日期:1996-10-05 发布日期:2018-01-17
  • 基金资助:
    国家教委博士点基金和中科院武汉物理所波谱与原子分子物理国家重点实验室基金资助项目

STUDY ON THE SYNTHESIS AND RELAXIVITY OF NITROXYL-LABELED POLYPHOSPHATES

Yu Kaichao, Zhuo Renxi   

  1. Department of Chemistry, Wuhan University, Wuhan 430072
  • Received:1996-03-25 Revised:1996-04-26 Online:1996-10-05 Published:2018-01-17

摘要: 通过二氮磷酸-O-(1-氧-2,2,6,6,-四甲基-4-哌啶醇)酯分别与四甘醇、三甘醇、二甘醇、1,6-己二醇、1,8-辛二醇、N-乙基二乙酰胺、N-正丁基二乙酰胺缩聚,制得七个含稳定氮氧自由基(TEMPO)的聚磷酸酯.对这些新的聚磷酸酯进行了结构表征,并测试了部分聚合物的纵向弛豫性能.

关键词: 氮氧自由基, 自旋标记, 聚磷酸酯, MRI造影剂, 弛豫性能

Abstract: Seven spin-labeled polyphosphates were synthesized by the polycondensation of O-(1-oxyl-2, 2, 6, 6-tetramethyl-4-piperidyl) phosphoric acid dichloride with tetraethylene glycol, triethylene glocol, diethylene glycol, 1, 6-hexanediol, 1,8-octandiol, N-ethyldiethanolamine and N-butyldiethanolamine, respectively.The structures of these stable nitroxyl-labeled polyphosphates were characterized by IR, UV, ESR, VPO and Elemental analysis. The relaxivity (Ri) of polyphosphate 3a,3c and 3d was investigated.

Key words: Nitroxide, Spin-labeling, Polyphosphate, MRI contrast agent, Relaxivity