Journal of Thermal Analysis and Calorimetry

, Volume 135, Issue 4, pp 2147–2157 | Cite as

Thermal, mechanical and dielectric behaviour of poly(aryl ether ketone) with low melting temperature

  • Jérémie Audoit
  • Lisa Rivière
  • Jany Dandurand
  • Antoine Lonjon
  • Eric DantrasEmail author
  • Colette Lacabanne


New poly(aryl ether ketone)s (PAEKs) with a low melting temperature (relative to PEEK) are of interest in order to simplify the manufacturing of high-performance polymers or composites. In this study, we propose to investigate the physical properties of a new PAEK from Victrex, namely PAEK LM. Combinations of thermal analyses were used as follows: standard and modulated temperature differential scanning calorimetry, dynamic mechanical analysis, dynamic dielectric analysis and guarded hot plate technique. We found that the global mechanical, dielectric and thermal properties are very similar to the PEEK reference. The glass transition temperature was observed in the same range than PEEK (∼ 150 °C) while the melting temperature Tm was measured at 307 °C for PAEK LM which is about 35 °C below the melting temperature of PEEK. The degree of crystallinity of PAEK LM was found to be 27% while for PEEK it is 38%, depending on the processing conditions. This work explored crystalline structure–property relationships to explain the behaviour of PAEK LM.


Poly(aryl ether ketone) DSC Dynamic mechanical analysis Dynamic dielectric spectroscopy Thermal conductivity 



The authors gratefully acknowledge the financial support of BPI/France and Conseil Régional Midi Pyrénées/France through the MACOTHEC FUI program. The authors gratefully acknowledge the courtesy of Victrex that supplied the PAEK VICTREX AE 250™.


  1. 1.
    Panayotov IV, Orti V, Cuisinier F, Yachouh J. Polyetheretherketone (PEEK) for medical applications. J Mater Sci Mater Med. 2016;27:118.CrossRefPubMedGoogle Scholar
  2. 2.
    Tannous F, Steiner M, Shahin R, Kern M. Retentive forces and fatigue resistance of thermoplastic resin clasps. Dent Mater. 2012;28:273–8.CrossRefPubMedGoogle Scholar
  3. 3.
    Shaver A, Moon JD, Savacool D, Zhang W, Narang G, Miller G, et al. Poly(2,6-dimethyl-1,4-phenylene oxide) blends with a poly(arylene ether ketone) for gas separation membranes. Polym. 2017;114:135–43.CrossRefGoogle Scholar
  4. 4.
    Díez-Pascual AM, Naffakh M, Marco C, Ellis G, Gómez-Fatou MA. High-performance nanocomposites based on polyetherketones. Prog Mater Sci. 2012;57:1106–90.CrossRefGoogle Scholar
  5. 5.
    Yang L, Zhang S, Chen Z, Guo Y, Luan J, Geng Z, et al. Design and preparation of graphene/poly(ether ether ketone) composites with excellent electrical conductivity. J Mater Sci. 2013;49:2372–82.CrossRefGoogle Scholar
  6. 6.
    Quiroga Cortes L, Lonjon A, Dantras E, Lacabanne C. High-performance thermoplastic composites poly(ether ketone ketone)/silver nanowires: morphological, mechanical and electrical properties. J Non Cryst Solids. 2014;391:106–11.CrossRefGoogle Scholar
  7. 7.
    Rivière L, Lonjon A, Dantras E, Lacabanne C, Olivier P, Rocher N. Silver fillers aspect ratio influence on electrical and thermal conductivity in PEEK. Ag Nanocompos Eur Polym J. 2016;85:115–25.CrossRefGoogle Scholar
  8. 8.
    Nohara LB, Costa ML, Alves MA, Takahashi MFK, Nohara EL, Rezende MC. Processing of high performance composites based on peek by aqueous suspension prepregging. Mater Res. 2010;13:245–52.CrossRefGoogle Scholar
  9. 9.
    Cortes LQ, Racagel S, Lonjon A, Dantras E, Lacabanne C. Electrically conductive carbon fiber/PEKK/silver nanowires multifunctional composites. Compos Sci Technol. 2016;137:159–66.CrossRefGoogle Scholar
  10. 10.
    Ray D, Comer AJ, Lyons J, Obande W, Jones D, Higgins RMO, et al. Fracture toughness of carbon fiber/polyether ether ketone composites manufactured by autoclave and laser-assisted automated tape placement. J Appl Polym Sci. 2014;41643:1–10.Google Scholar
  11. 11.
    Sakamoto WK, Malmonge JA, Malmonge LF, Da Silva AFG, Higuti RT. PTCa/PEEK composite acoustic emission sensors. IEEE Trans Dielectr Electr Insul. 2006;13:1177–81.CrossRefGoogle Scholar
  12. 12.
    Vasconcelos GDC, Mazur RL, Ribeiro B, Botelho EC, Costa ML. Evaluation of decomposition kinetics of poly (ether-ether-ketone) by thermogravimetric analysis. Mater Res. 2014;17:227–35.CrossRefGoogle Scholar
  13. 13.
    Turi E. Thermal characterization of polymeric materials. San Diego: Academic press; 1997. p. 720–1.Google Scholar
  14. 14.
    Pope JC, Sue HJ, Bremner T, Blümel J. High-temperature steam-treatment of PBI, PEEK, and PEKK polymers with H2O and D2O: a solid-state NMR study. Polymer. 2014;55:4577–85.CrossRefGoogle Scholar
  15. 15.
    Zhao G, Men Y, Wu Z, Ji X, Jiang W. Effect of shear on the crystallization of the poly(ether ether ketone). J Polym Sci Part B Polym Phys. 2010;48:220–5.CrossRefGoogle Scholar
  16. 16.
    Blundell DJ, Osborn BN. The morphology of poly(aryl-ether-ether-ketone). Polymer. 1983;24:953–8.CrossRefGoogle Scholar
  17. 17.
    Cebe P, Hong SD. Crystallization behaviour of poly(ether-ether-ketone). Polymer. 1986;27:1183–92.CrossRefGoogle Scholar
  18. 18.
    Krishnaswamy RK, Kalika DS. Glass transition of poly(aryl ether ketone ketone) and its copolymers. Polymer. 1996;37:1915–23.CrossRefGoogle Scholar
  19. 19.
    Wang Y, Wang Y, Lin Q, Cao W, Liu C, Shen C. Crystallization behavior of partially melted poly(ether ether ketone). J Therm Anal Calorim. 2017;129:1021–8.CrossRefGoogle Scholar
  20. 20.
    Krishnaswamy RK, Kalika DS. Dynamic mechanical relaxation properties of poly(ether ether ketone). Polymer. 1994;35:1157–65.CrossRefGoogle Scholar
  21. 21.
    Quiroga Cortés L, Caussé N, Dantras E, Lonjon A, Lacabanne C. Morphology and dynamical mechanical properties of poly ether ketone ketone (PEKK) with meta phenyl links. J Appl Polym Sci. 2016;133:43396-1.CrossRefGoogle Scholar
  22. 22.
    David L, Etienne S. Molecular mobility in para-substituted polyaryls. 1. Sub-Tg relaxation phenomena in poly(aryl-ether-ether-ketone). Macromolecules. 1992;25:4302–8.CrossRefGoogle Scholar
  23. 23.
    Leonardi A, Dantras E, Dandurand J, Lacabanne C. Dielectric relaxations in PEEK by combined dynamic dielectric spectroscopy and thermally stimulated current. J Therm Anal Calorim. 2013;111:807–14.CrossRefGoogle Scholar
  24. 24.
    Perrier G. Maxwell–Wagner–Sillars relaxations and crystallinity in PEEK. Compos Interfaces. 1996;4:111–7.CrossRefGoogle Scholar
  25. 25.
    Ezquerra TA, Majszczyk J, Baltà-Calleja FJ, López-Cabarcos E, Gardner KH, Hsiao BS. Molecular dynamics of the α relaxation during crystallization of a glassy polymer: a real-time dielectric spectroscopy study. Phys Rev B. 1994;50:6023–31.CrossRefGoogle Scholar
  26. 26.
    Smith KJ, Towle IDH, Moloney MG. Spherical, particulate poly(ether ketone ketone) by a Friedel Crafts dispersion polymerisation. RSC Adv. 2016;6:13809–19.CrossRefGoogle Scholar
  27. 27.
    Gardner KH, Hsiao BS, Matheson RR, Wood BA. Structure, crystallization and morphology of poly (aryl ether ketone ketone). Polymer. 1992;33:2483–95.CrossRefGoogle Scholar
  28. 28.
    In I, Kim SY. Synthesis of poly(arylene ether ketone)s containing unsymmetrical pyridyl ether linkages. Polym Bull. 2006;56:129–35.CrossRefGoogle Scholar
  29. 29.
    Wunderlich B, Jin Y, Boller A. Mathematical description of differential scanning calorimetry based on periodic temperature modulation. Thermochim Acta. 1994;238:277–93.CrossRefGoogle Scholar
  30. 30.
    Thomas LC. Measurement of accurate heat capacity values. TA Instruments, Modul. DSC Pap. #9. 2005; p. 1–11.Google Scholar
  31. 31.
    Havriliak S, Negami S. A complex plane analysis of α-dispersions in some polymer systems. J Polym Sci Part C Polym Symp. 2007;14:99–117.CrossRefGoogle Scholar
  32. 32.
    Cser F, Goodwin A. Structural studies on PEK/TPI blends. J Therm Anal Calorim. 2001;65:69–86.CrossRefGoogle Scholar
  33. 33.
    Xu H, Ince BS, Cebe P. Development of the crystallinity and rigid amorphous fraction in cold-crystallized isotactic polystyrene. J Polym Sci Part B Polym Phys. 2003;41:3026–36.CrossRefGoogle Scholar
  34. 34.
    Lee Y, Porter RS. Double-melting behavior of poly(ether ether ketone). Macromolecules. 1987;20:1336–41.CrossRefGoogle Scholar
  35. 35.
    Wei CL, Chen M, Yu FE. Temperature modulated DSC and DSC studies on the origin of double melting peaks in poly(ether ether ketone). Polymer. 2003;44:8185–93.CrossRefGoogle Scholar
  36. 36.
    Marand H, Prasad A. On the observation of a new morphology in poly(arylene ether ether ketone). A further examination of the double endothermic behavior of poly(arylene ether ether ketone). Macromolecules. 1992;25:1731–6.CrossRefGoogle Scholar
  37. 37.
    Dasriaux M, Castagnet S, Thilly L, Chocinski-Arnault L, Boyer SAE. Evolution of the amorphous fraction of PEEK during annealing at atmospheric and high pressure above the glass transition temperature. J Appl Polym Sci. 2013;130:1148–57.CrossRefGoogle Scholar
  38. 38.
    Cheng SZD, Cao M, Wunderlich B. Glass transition and melting behavior of Poly(oxy-1,4-phenyleneoxy-1,4-phenylenecarbonyl-1,4-phenylene). Macromolecules. 1986;19:1868–76.CrossRefGoogle Scholar
  39. 39.
    Cheng SZD, Wunderlich B. Heat capacities and entropies of liquid, high-melting-point polymers containing phenylene groups (PEEK, PC and PET). J Polym Sci Part B Polym Phys. 1986;24:1755–65.CrossRefGoogle Scholar
  40. 40.
    Cheng SZD, Lim S, Judovits LH, Wunderlich B. Heat capacities of high melting polymers containing phenylene groups. Polymer. 1987;28:10–22.CrossRefGoogle Scholar
  41. 41.
    Cheng SZD, Wunderlich B. Thermal analysis of thermoplastic polymers. Thermochim Acta. 1988;134:161–6.CrossRefGoogle Scholar
  42. 42.
    Kemmish DJ, Hay JN. The effect of physical ageing on the properties of amorphous PEEK. Polymer. 1985;26:905–12.CrossRefGoogle Scholar
  43. 43.
    Choy CL. Thermal conductivity of polymers. Polymer. 1977;18:984–1004.CrossRefGoogle Scholar
  44. 44.
    Choy CL, Ong EL, Chen FC. Thermal diffusivity and conductivity of crystalline polymers. J Appl Polym Sci. 1981;26:2325–35.CrossRefGoogle Scholar
  45. 45.
    Zeller RC, Pohl RO. Thermal conductivity and specific heat of noncrystalline solids. Phys Rev B. 1971;4:2029–41.CrossRefGoogle Scholar
  46. 46.
    Dashora P, Gupta G. On the temperature dependence of the thermal conductivity of linear amorphous polymers. Polymer. 1996;37:231–4.CrossRefGoogle Scholar
  47. 47.
    Bafna M, Dashora P. A theoretical study of temperature dependence of thermal diffusivity of linear amorphous and semicrystalline polymers. Int J Recent Sci Res. 2012;3:417–22.Google Scholar
  48. 48.
    Díez-Pascual AM, Guan J, Simard B, Gómez-Fatou MA. Poly(phenylene sulphide) and poly(ether ether ketone) composites reinforced with single-walled carbon nanotube buckypaper: II—Mechanical properties, electrical and thermal conductivity. Compos Part A Appl Sci Manuf. 2012;43:1007–15.CrossRefGoogle Scholar
  49. 49.
    Choy CL, Kwok KW, Leung WP, Lau FP. Thermal conductivity of poly(ether ether ketone) and its short-fiber composites. J Polym Sci Part B Polym Phys. 1994;32:1389–97.CrossRefGoogle Scholar
  50. 50.
    Capsal J-F, Pousserot C, Dantras E, Dandurand J, Lacabanne C. Dynamic mechanical behaviour of polyamide 11/barium titanate ferroelectric composites. Polymer. 2010;51:5207–11.CrossRefGoogle Scholar
  51. 51.
    Arous M, Ben AI, Kallel A, Fakhfakh Z, Perrier G. Crystallinity and dielectric relaxations in semi-crystalline poly(ether ether ketone). J Phys Chem Solids. 2007;68:1405–14.CrossRefGoogle Scholar
  52. 52.
    Sasuga T, Hagiwara M. Molecular motions of non-crystalline poly(aryl ether-ether-ketone) PEEK and influence of elecron beam irradiation. Polymer. 1985;26:501–5.CrossRefGoogle Scholar
  53. 53.
    Goodwin A, Hay J. Dielectric and dynamic mechanical relaxation studies on poly (aryl ether ketone) s. J Polym Sci Part B Polym Phys. 1998;36:851–9.CrossRefGoogle Scholar
  54. 54.
    Goodwin A, Marsh R. Dielectric and dynamic mechanical relaxation of poly(ether ether ketone)/poly(etherimide) blends below the glass transition. Macromol Rapid Commun. 1996;17:475–80.CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  • Jérémie Audoit
    • 1
  • Lisa Rivière
    • 1
  • Jany Dandurand
    • 1
  • Antoine Lonjon
    • 1
  • Eric Dantras
    • 1
    Email author
  • Colette Lacabanne
    • 1
  1. 1.CIRIMATUniversité de Toulouse, CNRS, Physique des PolymèresToulouse Cedex 09France

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