Chinese Journal of Magnetic Resonance ›› 1994, Vol. 11 ›› Issue (1): 71-76.

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STUDY ON SEGMENT MOTION OF POLY-α-OLEFINES BY USING2,2,6,6-TETRAMETHYLPIPERIDONE-1-OXYL AS SPIN PROBE

Wang Li, Feng Linxian, Mao Qingge, Yang Shilin   

  1. Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027
  • Received:1992-07-11 Revised:1993-04-10 Published:1994-03-05 Online:2018-01-20
  • Supported by:
    The Project supported by National Natural Science Foundation of China

Abstract: Several kinds of poly-α-olefines were synthesized as drag reduction agents for crude oils.The segment motion of poly-α-olefines was investigated by using 2,2,6,6-tetramethylpiperidone-1-oxyl as spin probe.It is found that the drag reduction effi-ciency of polyolefines is dependent on both their T50G and segment motion.

Key words: ESR, Drag reduction agents, Polyolefines