Chinese Journal of Applied Chemistry ›› 1997, Vol. 0 ›› Issue (1): 95-97.

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Reaction Mechanism of Radiation Induced Graft Polymerization on MgO Surface

Jiang Bo1, Huang Guanglin2   

  1. 1. Institute of Nuclear Science and Technology, Sichuan Union University, Chengdu 610064;
    2. Department of Chemistry, Sichuan Union University, Chengdu 610064
  • Received:1996-05-21 Revised:1996-08-26 Published:1997-02-10 Online:1997-02-10

Abstract: The reaction mechanism of radiation induced graft polymerization on MgO surface by mutual irradiation has been studied. It is proved by IRspectroscopy that PMMA has been grafted onto MgO surface. By studying grafting temperature, inhibitor, molecular weight and molecular weight distribution, we discover that both free radical and anion induced graft polymerizations take place under the action of high energy radiation. Comparing IR spectra of radiation-polymerized PMMA and graft link on MgO surface, we suggest that O- species trapped in oxide ion lattice on the solid surface is the active site initiating graft polymerization by high energy radiation.

Key words: MgO, reaction mechanism, radiation induced grafting, MMA