Journal of Materials Science

, Volume 46, Issue 20, pp 6581–6588 | Cite as

Study on the moisture absorption of pyridine containing polyurethane for moisture-responsive shape memory effects

  • Shaojun Chen
  • Jinlian HuEmail author
  • Haitao Zhuo


Supramolecular polymers are attractive in recent years. In this article, a series of pyridine containing polyurethanes (PUPys) with various pyridine contents and various MDI-BDO contents were synthesized from 1,6-hexamethylene diisocyanate (HDI), 1,4-butanediol (BDO), N,N-bis(2-hydroxylethyl) isonicotinamine (BINA) and diphenylmethane diisocyanate (MDI). Thereafter, the moisture absorption of PUPys was mainly investigated systematically from the effect of temperature, relative humidity (RH), pyridine content, MDI-BDO content, the mechanism, and the kinetic of moisture absorption. Results show that the moisture absorption process of PUPys matches with Fick’s second law in the initial stage. The moisture absorption is dependent on the content of N,N-bis(2-hydroxylethyl) isonicotinamine (BINA), e.g., the moisture absorption decreases with the increase of MDI-BDO content as well as the decrease of BINA content. In addition, the moisture absorption increases with the increase of temperature and relative humidity (RH). Accordingly, the moisture absorption process of PUPy45 at RH = 65% and T = 25° can be expressed with the equation: lnMt = 8.88–2975(1/T) + 0.5lnt. On the basis of the moisture absorption, the shape recovery process of PUPys film under the moisture condition support that PUPys show excellent moisture-responsive shape memory effects.


Moisture Absorption Shape Recovery Cyanate Ester Vinyl Pyridine Pyridine Moiety 



This study was financially supported by the project T201006 supported by Shenzhen Key Laboratory of Special Functional Materials, Shenzhen University, Shenzhen. The authors also would like to thank Prof. Jean-Marie Lehn, the Nobel Prize Laureate in 1987, for his guidance.


  1. 1.
    Lehn JM (1985) Science 227:849CrossRefGoogle Scholar
  2. 2.
    Lehn JM (2007) Chem Soc Rev 36:151CrossRefGoogle Scholar
  3. 3.
    Lehn JM (2005) Prog Polym Sci 30:814CrossRefGoogle Scholar
  4. 4.
    Lehn JM (1993) Science 260:1762CrossRefGoogle Scholar
  5. 5.
    Lehn JM (2002) Pnatal Acad Sci USA 99:4763CrossRefGoogle Scholar
  6. 6.
    Ujiie S, Iimura K (1992) Macromolecules 25:3174CrossRefGoogle Scholar
  7. 7.
    Meudtner RM, Hecht S (2008) Macromo Rapid Comm 29:347CrossRefGoogle Scholar
  8. 8.
    Millaruelo M, Chinelatto LS, Oriol L, Pinol M, Serrano JL, Tejedor RM (2006) Macromol Chem Phys 207:2112CrossRefGoogle Scholar
  9. 9.
    Micozzi A, Ottaviani M, Giardina G, Ricci A, Pizzoferrato R, Ziller T, Compagnone D, Lo Sterzo C (2005) Adv Synth Catal 347:143CrossRefGoogle Scholar
  10. 10.
    Chang J, Han J, An J, Im C, Yu YJ, Jin JI (2007) J Korean Phys Soc 51:1993CrossRefGoogle Scholar
  11. 11.
    Tamami B, Yeganeh H, Koohmareh GA (2005) Iran Polym J 14:785Google Scholar
  12. 12.
    Chen J, Hu JL, Yuen CW, Chan LK (2009) Mater Lett 63:1462CrossRefGoogle Scholar
  13. 13.
    Chen SJ, Hu JL, Yuen CW, Chan LK (2010) Polym Int 59:529CrossRefGoogle Scholar
  14. 14.
    Chen SJ, Hu JL, Zhuo HT, Yuen CW, Chan LK (2010) Polymer 51:240CrossRefGoogle Scholar
  15. 15.
    Bao LR, Yee AF (2002) Polymer 43:3987CrossRefGoogle Scholar
  16. 16.
    Vogt BD, Soles CL, Lee HJ, Lin EK, Wu W (2005) Polymer 46:1635CrossRefGoogle Scholar
  17. 17.
    Vlasveld DPN, Groenewold J, Bersee HEN, Picken SJ (2005) Polymer 46:12567CrossRefGoogle Scholar
  18. 18.
    Karad SK, Jones FR (2005) Polymer 46:2732CrossRefGoogle Scholar
  19. 19.
    Chen SJ, Cao Q, Jing B, Cai YL, Liu PS, Hu JL (2006) J Appl Polym Sci 102:5224CrossRefGoogle Scholar
  20. 20.
    Chen SJ, Cao Q, Liu PS (2006) Acta Polym Sin 1:1CrossRefGoogle Scholar
  21. 21.
    Chen SJ, Hu JL, Liu YQ, Liem HM, Zhu Y, Liu YJ (2007) J Polym Sci Pol Phys 45:444CrossRefGoogle Scholar
  22. 22.
    Chen SJ, Hu JL, Liu YQ, Liem HM, Zhu Y, Meng QH (2007) Polym Int 56:1128CrossRefGoogle Scholar
  23. 23.
    Chen SJ, Su JC, Liu PS (2005) Chinese Chem Lett 16:1241Google Scholar
  24. 24.
    Huang WM, Yang B, An L, Li C, Chan YS (2005) Appl Phys Lett 86:114105CrossRefGoogle Scholar
  25. 25.
    Yang B, Huang WM, Li C, Chor JH (2005) Eur Polym J 41:1123CrossRefGoogle Scholar
  26. 26.
    Yang B, Huang WM, Li C, Li L (2006) Polymer 47:1348CrossRefGoogle Scholar
  27. 27.
    Fan K, Huang WM, Wang CC, Ding Z, Zhao Y, Purnawali H, Liew KC, Zheng LX (2011) Express Polym Lett 5:409CrossRefGoogle Scholar
  28. 28.
    Jaczewska J, Budkowski A, Bernasik A, Raptis I, Raczkowska J, Goustoruidis D, Rysz J, Sanopoulou M (2007) J Appl Polym Sci 105:67CrossRefGoogle Scholar
  29. 29.
    Chen SJ, Hu JL, Yuen CW, Chan LK (2009) Polymer 50:4424CrossRefGoogle Scholar
  30. 30.
    Li ST, Liang L, Li JY, Liu NJ, Alim MA (2006) Mater Lett 60:114CrossRefGoogle Scholar
  31. 31.
    Lin QF, Zhou XD, Dai G (2002) J Appl Polym Sci 85:2824CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Shenzhen Key Laboratory of Special Functional Materials, College of Materials Science and EngineeringShenzhen UniversityShenzhenChina
  2. 2.Institute of Textiles and ClothingThe Hong Kong Polytechnic UniversityHong KongChina

Personalised recommendations