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Poly( para ‐dioxanone)/inorganic particle composites as a novel biomaterial
Author(s) -
Bai Wei,
Chen Dongliang,
Zhang Zhiping,
Li Qing,
Zhang Dujuan,
Xiong Chengdong
Publication year - 2009
Publication title -
journal of biomedical materials research part b: applied biomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 108
eISSN - 1552-4981
pISSN - 1552-4973
DOI - 10.1002/jbm.b.31367
Subject(s) - crystallinity , materials science , biomaterial , differential scanning calorimetry , crystallization , ultimate tensile strength , scanning electron microscope , particle (ecology) , composite material , precipitation , chemical engineering , particle size , calcium carbonate , composite number , polymer chemistry , nanotechnology , oceanography , physics , geology , meteorology , engineering , thermodynamics
In this work, poly( para ‐dioxanone) (PPDO) was mixed with 1% (by weight) calcium carbonate (CaCO 3 ), beta‐tricalcium phosphate (β‐TCP), or calcium sulphate dihydrate (CSD) by solution co‐precipitation. Samples were compression molded into bars using a platen‐vulcanizing press. The morphology, thermal and mechanical properties, and crystalline structure of the composites were investigated using differential scanning calorimetry, polarized optical microscopy, scanning electron microscopy, and X‐ray diffraction. All results suggest that three types of inorganic particle in this system promote the crystallinity of PPDO and act as an effective nucleating agent: the relative degree of crystallinity of PPDO increased from 30.74% to 100%, and the crystallization temperature of PPDO was increased by 18°C. On the other hand, the mechanical properties of PPDO were changed by the presence of inorganic particles: the tensile strength of PPDO/CSD increased by 11.46%. © 2009 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 2009