Polymerization Kinetics of Methacrylic Groups in Organic-Inorganic Hybrid Polymeric Thin Films

Abstract

In this paper, the polymerization kinetics of unsaturated double bonds (C=C) in TiO2- and ZrO2-doped hybrid polymeric thin films during UV irradiation and thermal curing is studied by monitoring the variation of C=C absorption band at 1630 cm-1 using FT-IR spectroscopic technique. Experimental results showed that polymerization of the unsaturated C=C groups in the TiO2- and ZrO2-doped hybrid polymers can be realized by either photo-irradiation or thermal treatment. The UV-induced polymerization process is much faster than thermal curing, but a full conversion of C=C groups into polyacrylate chains cannot be achieved without thermal treatment. The catalytic effect of TiO2 and ZrO2 on promoting the polymerization of C=C groups was observed, and the time of UV exposure and thermal curing for cross-linking C=C bonds was found to decrease with the increase of the concentration of TiO2 and ZrO2. The activation energy of the hybrid material containing varied concentration of TiO2 and ZrO2 was calculated, and the results indicated that TiO2 is more active than ZrO2 in promoting the polymerization of the unsaturated C=C bonds. Finally, the mechanisms for TiO2 and ZrO2 enhancing the material’s photosensitivity (i.e. promoting polymerization of C=C bonds) have been proposed and discussed.

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References

  1. 1.

    A. Jitianu, M. Gartner, M. Zaharescu, D. Cristea and E. Manea, Materials Sciences and Engineering C 23 (2003) 301.

    Article  Google Scholar 

  2. 2.

    X.L. Zhu, L. Shi, J. Chan, J. Wang, C. Ye and D. Lo, Optical Communications 251(2005) 322.

    CAS  Article  Google Scholar 

  3. 3.

    U. Streppel, P. Dannberg, C. Wöchter, A. Bröuer, L. Fröhlich, R. Houbertz and M. Popall, Optical Materials 21 (2002) 475.

    Article  Google Scholar 

  4. 4.

    X. Luo, C. Zha, B. Luther-Davies, Journal of Non-Crystalline Solids, 351 (2005), pp 29–34.

    CAS  Article  Google Scholar 

  5. 5.

    X. Luo, C. Zha, B. Luther-Davies, Optical Materials 27 (2005) 1461–1466

    CAS  Article  Google Scholar 

  6. 6.

    X. Luo, C. Zha, B. Luther-Davies, Journal of Sol-Gel Science and Technology, 32 (2004) 297–301.

    CAS  Article  Google Scholar 

  7. 7.

    K. S. Murthy and K. Kishore, European Polymer Journal 33 (1997) 441

    Article  Google Scholar 

  8. 8.

    P.W. Atkins, Physical Chemistry, fifth edition, Oxford University Press, Oxford (1994)

    Google Scholar 

  9. 9.

    O. Soppera, C. Croutxé-Barghorn and D. J. Lougnot, New Journal of Chemistry 25(2001) 1006.

    CAS  Article  Google Scholar 

  10. 10.

    U. Gbureck, J. Probst and R. Thull, Journal of Sol-Gel Science and Technology 27(2003) 157.

    CAS  Article  Google Scholar 

Download references

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Correspondence to Congji Zha.

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Zha, C., Luo, X. & Luther-Davies, B. Polymerization Kinetics of Methacrylic Groups in Organic-Inorganic Hybrid Polymeric Thin Films. MRS Online Proceedings Library 1007, 1002 (2007). https://doi.org/10.1557/PROC-1007-S10-02

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