[3] It filters ultraviolet (UV) light at wavelengths below about 300 nm (similar to ordinary window glass). PMMA is used in the lenses of exterior lights of automobiles. The polymer of methyl acrylate, PMA or poly(methyl acrylate), is similar to poly(methyl methacrylate), except for the lack of methyl groups on the backbone carbon chain. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. URL: https://www.sciencedirect.com/science/article/pii/B9780128012383640989, URL: https://www.sciencedirect.com/science/article/pii/B9780081007525000093, URL: https://www.sciencedirect.com/science/article/pii/B9780123985231000070, URL: https://www.sciencedirect.com/science/article/pii/B9780128035818092870, URL: https://www.sciencedirect.com/science/article/pii/B9780128098806000333, URL: https://www.sciencedirect.com/science/article/pii/B9780857098412500084, URL: https://www.sciencedirect.com/science/article/pii/B9780081006078000022, Comprehensive Medicinal Chemistry II, 2007, Ohan S. Manoukian, ... Sangamesh G. Kumbar, in, Acrylic bone cements for joint replacement, Gupta and Skinner, 2006; Webb and Spencer, 2007, Synthetic Biomaterials for Regenerative Medicine Applications, Satyavrata Samavedi, ... Aaron S. Goldstein, in, Regenerative Medicine Applications in Organ Transplantation, Biocompatibility, Surface Engineering, and Delivery of Drugs, Genes and Other Molecules, Michael C. Hacker, ... Antonios G. Mikos, in, Principles of Regenerative Medicine (Third Edition), Acrylic cements for bone fixation in joint replacement*, A Clinical Guide to Fibre Reinforced Composites (FRCs) in Dentistry, Mannocci et al., 2005; Frese et al., 2014; Wolf et al., 2012. [citation needed] PMMA produced by radical polymerization (all commercial PMMA) is atactic and completely amorphous. We use cookies to help provide and enhance our service and tailor content and ads. Legal Disclaimer | Charnley named the material acrylic-based bone cement. Rather, modified formulations with varying amounts of other comonomers, additives, and fillers are created for uses where specific properties are required. These protocols still remain the cornerstones for PMMA bone cement production today. In 1958, Sir John Charnley successfully fixed an intramedullary stem prosthesis using self-polymerising PMMA bone cement (Charnley, 1960). Poly(methyl methacrylate) (PMMA) is a vinyl-based cationic polymer capable of condensing nucleic acids by ionic interactions.

Objects like insects or coins, or even dangerous chemicals in breakable quartz ampules, may be embedded in such "cast" blocks, for display and safe handling. (1981) advocated the addition of antibiotics to bone cement. PMMA ignites at 460 °C (860 °F) and burns, forming carbon dioxide, water, carbon monoxide and low-molecular-weight compounds, including formaldehyde.[26].

Volatile components, primarily methyl methacrylate, of three selected formulations were determined quantitatively by vacuum distillation and mass spectrographic analysis. Being transparent and durable, PMMA is a versatile material and has been used in a wide range of fields and applications such as rear-lights and instrument clusters for vehicles, appliances, and lenses for glasses. PMMA is used in biomaterial applications such as bone cement, lenses, bone substitutes, and drug delivery systems. (It is a common mistake to use "an" instead of "en".). PMMA swells and dissolves in many organic solvents; it also has poor resistance to many other chemicals due to its easily hydrolyzed ester groups.

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