Abstract
The influence of poly (acrylic acid) molar mass was investigated on cements formed from zinc oxide-apatite mixtures at three aging times: one, seven and 28 days. Cements based on both hydroxyapatite and fluorapatite were investigated. The compressive strength, un-notched fracture strength and fracture toughness increased markedly with poly (acrylic acid) molar mass. The fracture toughness and un-notched fracture strength increased with aging time for the two highest molar mass cements but decreased with time for the two lowest molar mass cements. The greater chain entanglement density present in the higher molar mass cements is thought to contribute significantly to the cement stability in addition to the crosslinking of the polyacrylate chains by calcium and zinc ions. Substitution of hydroxyapatite by fluorapatite had no significant influence on the mechanical properties of the cements at aging times longer than one day.
Recommended Citation
S. Kenny et al., "The Influence of Poly(Acrylic Acid) Molar Mass on the Properties of Polyalkenoate Cements Formed from Zinc Oxide/apatite Mixtures," Journal of Materials Science: Materials in Medicine, vol. 11, no. 12, pp. 847 - 853, Springer, Jan 2000.
The definitive version is available at https://doi.org/10.1023/A:1008969932746
Department(s)
Chemical and Biochemical Engineering
International Standard Serial Number (ISSN)
0957-4530
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2023 The Authors, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution 4.0 License.
Publication Date
01 Jan 2000
Included in
Biochemical and Biomolecular Engineering Commons, Biomedical Devices and Instrumentation Commons
