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Relationship between the morphology of PMMA particles and properties of acrylic bone cements

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Abstract

Bone cements are mainly based on acrylie polymers, poly (methyl methacrylate) (PMMA) being the most representative. The curing process (cold curing) is the result of the free radical polymerization of a mixture of beads of PMMA and methyl methacrylate (MMA), initiated by benzoyl peroxide (BPO) and activated by the presence of a tertiary amine, the most classical being N,N-dimethyl-4-toluidine (DMT). In this work the results on the effect of the size and size distribution of PMMA beads and the concentration of DMT and BPO on the setting parameters, the residual monomer content and the mechanical properties (tension and compression) of the cured systems are presented. The use of relatively larger diameter PMMA beads improves the characteristic parameters of the curing process (decreasing the peak temperature and increasing the setting time), without detrimental effects on the mechanical properties of the cured cement.

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Authors and Affiliations

  1. Dep. C. Materiales e Ingenieria Metalurgica, E.T.S.E.I.B. Universitat Politecnica de Catalunya, Av. Diagonal 647, 08028, Barcelona, Spain

    M. B. Ginebra, F. X. Gil & J. A. Planell

  2. Facultad de Quimica, Universidad del Pais Vasco, Apdo. 1072, 20080, San Sebastian, Spain

    B. Pascual, I. Goni & M. Gurruchaga

  3. E.P.S. Carlos III, Butarque 15, 28911, Leganés, Madrid, Spain

    B. Levenfeld

  4. Instituto de Ciencia y Tecnologia de Polimeros, Juan de la Cierva 3, 28006, Madrid, Spain

    B. Vázouez & J. San Roman

Authors
  1. M. B. Ginebra
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  2. F. X. Gil
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  3. J. A. Planell
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  4. B. Pascual
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  5. I. Goni
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  6. M. Gurruchaga
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  7. B. Levenfeld
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  8. B. Vázouez
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  9. J. San Roman
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Additional information

This paper was accepted for publication after the 1995 Conference of the European Society of Biomaterials, Oporio, Portugal, 10–13 September.

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Ginebra, M.B., Gil, F.X., Planell, J.A. et al. Relationship between the morphology of PMMA particles and properties of acrylic bone cements. J Mater Sci: Mater Med 7, 375–379 (1996). https://doi.org/10.1007/BF00154553

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  • DOI: https://doi.org/10.1007/BF00154553

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