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PLLA-HA composites: Synthesis and characterization

Abstract:

A composite based on PLLA -HA was prepared by the solvent casting technique and characterized. An interaction between the polymer matrix and HA through the carbonyl and phosphate groups was obtained by FTIR. The several thermal transitions of PLLA were evaluated by DSC: the glass transition, crystallization, cold crystallization, melt-recrystallization and melting. The addition of HA to PLLA matrix increases its glass transition temperature and no major changes on the melting temperature and crystallinity were observed. The PLLA-HA composite showed better thermal stability than the neat polymer. The introduction of the nano-HA particles increased the decomposition temperature and the activation energy retarding the decomposition process. © 2012 American Institute of Physics.

Año de publicación:

2012

Keywords:

    Fuente:

    googlegoogle
    scopusscopus

    Tipo de documento:

    Conference Object

    Estado:

    Acceso restringido

    Áreas de conocimiento:

    • Biomateriales
    • Ciencia de materiales
    • Material compuesto

    Áreas temáticas:

    • Ingeniería y operaciones afines
    • Ingeniería química

    Contribuidores:

    Palacios J.K.Palacios J.K.
    Carmen A.Carmen A.
    Luis José Borrero GonzálezLuis José Borrero González