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Poly(n-octyl methacrylate) viscosity index improver: Kinetic study via on-line 1H-NMR technique

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Abstract

The free radical solution polymerization of n-octyl methacrylate has been studied in benzene-d 6 in the presence of 2,2′-azobisisobutyronitrile as thermal initiator. An on-line nuclear magnetic resonance spectroscopy was applied to record the reaction data and to determine the monomer conversion at different times during the polymerization reaction. Effect of monomer and initiator concentration as well as reaction temperature on polymerization rate was studied. The order of the reaction with respect to initiator (0.45) was consistent with the classical kinetic rate equation, while the order of reaction with respect to monomer (1.87) was much greater than unity. An overall activation energy (E a = 53.8 kJ/mol) was obtained over the temperature range 328−338 K. Also, the efficiency of the synthesized poly(n-octyl methacrylate) for improving the viscosity index of the lube oil was investigated.

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References

  1. J. C. O. Santos, I. M. G. Santos, A. G. Souza, E. V. Sobrinho, V. J. Fernandes, and A. J. N Silva, Fuel 83, 2393 (2004).

  2. C. Wu, J. Zhang, W. Li, and N. Wu, Fuel 84, 2039 (2005).

    Article  CAS  Google Scholar 

  3. Z. Xiangqiong, S. Heyang, R. Wenqi, H. Zhongyi, and R. Tianhui, Wear 258, 800 (2005).

    Article  Google Scholar 

  4. H. Zhongyi, L. Jinliang, Z. Xiangqiong, S. Heyang, R. Tianhui, and L. Weimin, Wear 257, 389 (2004).

    Article  Google Scholar 

  5. A. M. Barnes, K. D. Bartel, and V. R. A. Thibon, Tribol. Int. 34, 389 (2001).

    Article  CAS  Google Scholar 

  6. J. F. Ford and J. M. Wood, US Patent No. 3642633 (1972).

  7. G. S. Kapur, A. S. Sparal, S. K. Majumdar, S. K. Jain, S. P. Sri-vastava, and A. K. Bhatnagar, Lubr. Sci. 8, 49 (1995).

    Article  CAS  Google Scholar 

  8. M. M. Mohamed, H. A. Hamdi, and F. E. J. Mohamed, J. Chem. Technol. Biotechnol. 60, 283 (1994).

    Article  CAS  Google Scholar 

  9. R. J. A. Eckert and D. F. Covey, Lubr. Sci. 1, 65 (1988).

    Article  CAS  Google Scholar 

  10. E. W. Dean, A. D. Baner, and J. H. Berglund, Ind. Eng. Chem. Res. 32, 102 (1940).

    Article  CAS  Google Scholar 

  11. S. A. Mohamad, N. S. Ahmed, S. M. Hassanein, and A. M. Rashad, J. Pet. Sci. Eng. 100, 173 (2012).

    Article  CAS  Google Scholar 

  12. P. Ghosh, M. Das, and T. Das, Pet. Sci. Technol. 32, 804 (2014).

    Article  CAS  Google Scholar 

  13. A. M. Nassar, N. S. Ahmed, R. S. Kamal, A. A. Azim, and E. I. El-Nagdy, Pet. Sci. Technol. 23, 537 (2005).

    Article  CAS  Google Scholar 

  14. G. A. Holder and J. Winkler, Nature 207, 719 (1965).

    Article  CAS  Google Scholar 

  15. G. A. Holder and J. Winkler, J. Jpn. Pet. Inst. 51, 228 (1965).

    CAS  Google Scholar 

  16. M. Z. Elsabeéand and S. G. Ibrahim, Polym. Test. 20, 173 (2001).

    Article  Google Scholar 

  17. H. R. Lin, Eur. Polym. J. 37, 1507 (2001).

    Article  CAS  Google Scholar 

  18. J. C. Cizravi, T. Y. Tay, and E. C. Pon, J. App. Polym. Sci. 75, 239 (2000).

    Article  CAS  Google Scholar 

  19. B. G. Manders, A. M. VanHerk, and A. L. German, Macromol. Rapid. Commun. 14, 693 (1993).

    Article  CAS  Google Scholar 

  20. A. S. Brar, G. Singh, and R. Shankar, Polymer 46, 7164 (2005).

    Article  CAS  Google Scholar 

  21. M. Abdollahi, S. Mehdipour-Ataei, and F. Ziaee, J. Appl. Polym. Sci. 105, 2588 (2007).

    Article  CAS  Google Scholar 

  22. E. Nadim, H. Bouhendi, F. Ziaee, A. Nouri, J. Appl. Polym. Sci. 126, 156 (2012).

    Article  CAS  Google Scholar 

  23. V. Najafi, F. Ziaee, K. Kabiri, M. J. Z. Mehr, H. Abdollahi, P. M. Nezhad, S. M. Jalilian, and A. Nouri, Iran. Polym. J. 21, 683 (2012).

    Article  CAS  Google Scholar 

  24. M. Abdollahi, A. R. Mahdavian, amd A. Nouri, J. Macromol. Sci., Part A: Pure Appl. Chem. 44, 839(2007).

    Article  CAS  Google Scholar 

  25. A. R. Mahdavian, M. Abdollahi, and H. R. Bijanzadeh, J. Appl. Polym. Sci. 93, 2013 (2007).

    Google Scholar 

  26. S. F. Medeiros, J. C. S. Barboza, M. I. Ré, R. Giudici, and A. M. Santos, J. Appl. Polym. Sci. 118, 229 (2010).

    Article  CAS  Google Scholar 

  27. G. E. Scott and E. Senogles, J. Macromol. Sci., Part A 4, 1105 (1970).

    Article  CAS  Google Scholar 

  28. G. E. Scott and E. Senogles, J. Macromol. Sci., Part A 8, 753 (1974).

    Article  CAS  Google Scholar 

  29. M. F. García, M. F. Sanz, and E. L. Madruga, Macromol. Chem. Phys. 201, 1840 (2000).

    Article  Google Scholar 

  30. B. Subrahmanyam, S. D. Baruah, M. Rahman, J. N. Baruah, and N. N. Dass., J. Polym. Sci., Part A: Polym. Chem. 30, 2534 (1992).

    Google Scholar 

  31. A. Fehervari, E. BorosGyevi, T. Foldes-Berezsnich, and F. Tudos, J. Macromol. Sci., Part A 18, 431 (1982).

    Article  Google Scholar 

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Authors and Affiliations

  1. Iran Polymer and Petrochemical Institute, Tehran, 14975-112, Iran

    Seyed Mehrdad Jalilian, Farshid Ziaee, Hossein Abdollahi & Vahid Najafi

  2. Students’ Research Committee, Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran

    Hassan Farhadnejad

  3. Dezful University of Medical Sciences, Dezful, Iran

    Behrouz Furughi Nia

Authors
  1. Seyed Mehrdad Jalilian
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  2. Hassan Farhadnejad
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  3. Farshid Ziaee
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  4. Behrouz Furughi Nia
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  5. Hossein Abdollahi
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  6. Vahid Najafi
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Correspondence to Hassan Farhadnejad.

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Jalilian, S.M., Farhadnejad, H., Ziaee, F. et al. Poly(n-octyl methacrylate) viscosity index improver: Kinetic study via on-line 1H-NMR technique. Polym. Sci. Ser. B 58, 675–680 (2016). https://doi.org/10.1134/S1560090416060087

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  • DOI: https://doi.org/10.1134/S1560090416060087

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