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X-Ray Opaque Methacrylate Polymers for Biomedical Applications
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1997
Year
Optical MaterialsEngineeringOrganic ChemistryBiomedical EngineeringChemistryPolymersPolymer MaterialPolymer TechnologyHybrid MaterialsThermal StabilityPolymer ChemistryMaterials SciencePolymer EngineeringClear Radiopaque MaterialsPolymer ScienceX-ray Opaque GlassesPolymerization KineticsPolymer ReactionBiomedical ApplicationsPolymer Synthesis
The synthesis of a number of halogenated aromatic methacrylate monomers was achieved by (1) the esterification of hydroxyl-containing methacrylate esters with 2,3,5-tri-iodobenzoic acid and (2) by the nucleophilic addition of 2,3,5-tri-iodobenzoic acid, or polyhalogenated phenols, to 2,3-epoxypropyl methacrylate, yielding white crystalline products which were fully characterized. These monomers could be homopolymerized in the melt to produce clear, intensely X-ray opaque glasses possessing high refractive indices. The monomers themselves were soluble in a variety of methacrylate monomers with which they could be copolymerized to produce clear radiopaque materials. The stability of the homopolymers in an aqueous environment was excellent as was thermal stability, exhibiting little decomposition below 300°C. © 1997 SCI.