| Comparative study on the properties of acrylic bone cements prepared with either aliphatic or aromatic functionalized methacrylates. | |
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MedLine Citation:
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PMID: 15664633 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Bone cements prepared with methacrylic acid (MAA) and diethyl amino ethyl methacrylate (DEAEM) were compared with formulations employing 4-methacryloyloxybenzoic acid (MBA) and 4-diethyaminobenzyl methacrylate (DEABM) as comonomer. The influence of these new aromatic monomers on various physicochemical, setting and mechanical properties was assessed. Surface characterization demonstrated that bone cements prepared with any of the functionalized monomers exhibited increasing hydrophilicity with monomer concentration and that the aromatic monomers provided more hydrophilic cements than their aliphatic counterparts for low concentrations of the functional monomer. It was also found that bone cements prepared with high amounts of the acidic aliphatic monomer provided the highest exotherm of reaction and their setting times were shorter than MBA based cements. On the other hand, DEABM containing bone cements exhibited shorter setting times than DEAEM formulations and slightly higher peak temperatures. In general, it was found that the glass transition temperature increased with the presence of acidic comonomer and decreased when alkaline comonomers were present, especially aliphatic ones. When aromatic methacrylates were used at 0.05 molar fraction, the highest tensile and compressive strength were achieved i.e. 46 and 118 MPa for MBA and 51 and 108 MPa for DEABM formulations. A further increase in the aromatic monomer concentration led to cements of low mechanical properties due to solubility problems as revealed by SEM. |
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Authors:
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Jose M Cervantes-Uc; Humberto Vázquez-Torres; Juan Valerio Cauich-Rodríguez; Blanca Vázquez-Lasa; Julio San Román del Barrio |
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Publication Detail:
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Type: Comparative Study; Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Biomaterials Volume: 26 ISSN: 0142-9612 ISO Abbreviation: Biomaterials Publication Date: 2005 Jul |
Date Detail:
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Created Date: 2005-01-24 Completed Date: 2005-08-01 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8100316 Medline TA: Biomaterials Country: England |
Other Details:
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Languages: eng Pagination: 4063-72 Citation Subset: IM |
Affiliation:
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Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco No. 186, Col. Vicentina, C.P. 09340, México, D.F. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Benzoic Acids
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analysis,
chemistry* Bone Cements / analysis, chemistry* Compressive Strength Hardness Hydrocarbons, Aromatic / analysis, chemistry Materials Testing Methacrylates / analysis, chemistry* Molecular Weight Surface Properties Temperature Transition Temperature |
| Chemical | |
Reg. No./Substance:
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0/Benzoic Acids; 0/Bone Cements; 0/Hydrocarbons, Aromatic; 0/Methacrylates; 79-41-4/methacrylic acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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