Chinese Journal of Magnetic Resonance ›› 1990, Vol. 7 ›› Issue (2): 205-208.

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1H-NMR ANALYSIS OF END HYDROXYL AND DETERMINATION OF MOLECULAR WEIGHT IN PARTLY ESTERIFIED POLYETHER

Yong Zhonggen, Wu Meiyu   

  1. Institute of Chemical Industry Research of Jiangsu
  • Received:1989-04-11 Revised:1989-07-17 Published:1990-06-05 Online:2018-01-23

Abstract: This is a method for the determination of the fraction of end hydroxyl by measuring the ester-H ratio of 1H-NMR absorption peak areas for the partly esterified polyether and the completely esterified polyether. The molecular weight of polyether can be determined by ester-H groups.

Key words: NMR, Esterification polyether, Molecular weight