What kind of polymer is PMMA?
thermoplastic polymer
PMMA is a highly transparent thermoplastic polymer, obtained by polymerization of the methylmethacrylate monomer. Due to its transparency, aesthetics and scratch resistance PMMA might be considered the light alternative to glass. It is also sometimes called acrylic glass.
What is PMMA polymer used for?
PMMA is used in biomaterial applications such as bone cement, lenses, bone substitutes, and drug delivery systems. It is used to remove wrinkles and scars on skin tissue permanently. In dental implants, polymer material PMMA is substituted for missing dental roots.
What does PMMA polymer mean?
Poly(methyl methacrylate)
Poly(methyl methacrylate), or PMMA, is known by many different names, including Plexiglas and acrylic. The biocompatibility of PMMA material has gained it the medical moniker of “bone cement.” PMMA is often used as a lighter, shatter-resistant alternative to glass in everything from windows, aquariums and hockey rinks.
Is PMMA a linear polymer?
PMMA, polymethyl-methacrylate, is a thermoplastic acrylic linear polymer, the mer of which is illustrated in the diagram. PMMA is transparent, with a refractive index of 1.49, and easily formed into optical components.
What is the monomer of PMMA polymer?
Methyl methacrylate
Methyl methacrylate is the basic molecule, or monomer, from which polymethyl methacrylate and many other acrylic plastic polymers are formed. The chemical notation for this material is [CH2=C(CH3)COOCH3].
What are branched chain polymers?
Branched polymers are defined as having secondary polymer chains linked to a primary backbone, resulting in a variety of polymer architectures such as star, H-shaped, pom-pom, and comb-shaped polymers.
What is the tensile strength of PMMA?
70
Typical Properties
| Property | Value |
|---|---|
| Surface Hardness | RM92 |
| Tensile Strength (MPa) | 70 |
| Flexural Modulus (GPa) | 2.9 |
| Notched Izod (kJ/m) | 0.02 |
What is polymer chain?
Polymer chains are fractal objects whose dimensionality is determined by interactions between the monomeric units and solvent molecules.
What are polymer chains made of?
polymer A substance made from long chains of repeating groups of atoms. Manufactured polymers include nylon, polyvinyl chloride (better known as PVC) and many types of plastics. Natural polymers include rubber, silk and cellulose (found in plants and used to make paper, for example).
What is PMMA used for?
Scientific Properities. PMMA has a melting point of 320°F and has a density range of 1.17-1.20 g/cm3.
What is PMMA material?
PMMA refers to a synthetic resin — or plastic — that is created through the process of polymerization. In simple terms, this means that a source material (called methyl methacrylate) is placed into a mold in combination with a catalyst. This causes a chemical reaction.
How is PMMA made?
Internal stresses can be removed by heating to 80 degrees.
Is PMMA safe?
PMMA is durable, safe and easy to clean which is key to providing a safe environment for newborns. Medical. Acrylic resins are used by global leaders in the field of bone cement where consistent and high performance is paramount. Manufacturers and surgeons are continuously improving bespoke formulations to ensure we stay at the cutting edge of