Skip to main content
SpringerLink
Log in

Effect of polymerization procedure on thermal and mechanical properties of polyether based thermoplastic polyurethanes

  • Communications
  • Published:
Macromolecular Research Aims and scope Submit manuscript

Abstract

Thermoplastic polyurethanes (TPUs) with different hard segment length has been prepared from a fixed molar ratio of poly(tetramethylene ether glycol), 4,4′-diphenylmethane diisocyanate, and 1,4-butanediol by different polymerization procedures. Results reveal that the on-set temperature of exotherms (T cc ) due to the crystallization of hard segments by cooling the TPUs from melt and the peak temperature of endotherms due to the melting of hard segments (T mh ) by heating the TPUs increased and levelled off with increasing the hard segment length of TPUs. It has also been observed that soft segment glass transition temperature (T gs ) of TPU decreased slightly with increasing the hard segment length, which explains less mixing of soft segments and hard segments. In tensile measurement of TPUs, strain hardening is observed with increasing the hard segment length, which is attributed to the strain induced crystallization of soft segments.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

References

  1. C. Hepburn,Polyurethane Elastomers, 2nd Edition, Elsevier, London, 1991.

    Google Scholar 

  2. M. Szycher,Handbook of Polyurethane, CRC Press, London, 1999.

    Google Scholar 

  3. D. Dieterich and H. Hespe, inPolyurethane Handbook, 2nd Edition, G. Oertel, Ed., Hanser Publishers, Munich, 1993, Chapt. 2.

    Google Scholar 

  4. D. J. Martin, G. F. Meijs, P. A. Gunatillake, S. J. MaCarthy, and G. M. Renwick,J. Appl. Polym. Sci.,63, 803 (1997).

    Article  Google Scholar 

  5. J. A. Miller, S. B. Lin, K. K. S. Hwang, K. S. Wu, P. E. Gibson, and S. L. Cooper,Macromolecules,18, 32 (1985).

    Article  CAS  Google Scholar 

  6. S. Abouzahr and G. L. Wilkes,J. Appl. Polym. Sci.,29, 2695 (1984).

    Article  CAS  Google Scholar 

  7. T. O. Ahn, S. C. Choi, H. M. Jeong, and K. Cho,Polym. Int’l.,31, 329 (1993).

    Article  CAS  Google Scholar 

  8. D. J. Martin, G. F. Meijs, G. M. Renwick, S. J. MaCarthy, and P. A. Gunatillake,J. Appl. Polym. Sci.,62, 1377 (1996).

    Article  CAS  Google Scholar 

  9. J. W. C. Van Bogart, P. E. Gibson, and S. L. Cooper,J. Polym. Sci., Part A: Polym. Phys.,21, 65 (1983).

    Google Scholar 

  10. J. T. Koberstein and R. S. Stein,J. Polym. Sci., Part A: Polym. Phys.,21, 1439 (1983).

    CAS  Google Scholar 

  11. L. M. Leung and J. T. Koberstein,J. Polym. Sci., Part A: Polym. Phys.,23, 1883 (1985).

    CAS  Google Scholar 

  12. J. W. C. Van Bogart, D. A. Bluemke, and S. L. Cooper,Polymer,22, 1428 (1981).

    Article  Google Scholar 

  13. Y. C. L. Edmond, T. Quinn, and P. L. Valint,J. Polym. Sci., Polym. Chem. Ed.,33, 1767 (1995).

    Article  Google Scholar 

  14. J. T. Koberstein and A. F. Galambos,Macromolecules,25, 5618 (1992).

    Article  CAS  Google Scholar 

  15. C. D. Eisenbach, T. Heinemann, A. Ribbe, and E. Stadler,Macromol. Symp.,77, 125 (1994).

    Article  Google Scholar 

  16. D. H. Choi, J. H. Kim, and K. J. Cho,Korea Polym. J.,8, 172 (2000).

    CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Faculty of Chemical Engineering and Technology, Research Center of Industrial Technology, Chonbuk National University, 561-756, Chonju, Korea

    Seong Geun Kim & Dai Soo Lee

Authors
  1. Seong Geun Kim
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Dai Soo Lee
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Dai Soo Lee.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kim, S.G., Lee, D.S. Effect of polymerization procedure on thermal and mechanical properties of polyether based thermoplastic polyurethanes. Macromol. Res. 10, 365–368 (2002). https://doi.org/10.1007/BF03218331

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03218331

Keywords

Search

Navigation