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Poly(methyl methacrylate) (PMMA) is a synthetic polymer derived from methyl methacrylate. It is a transparent thermoplastic , used as an engineering plastic . PMMA is also known as acrylic , acrylic glass , as well as by the trade names and brands Crylux , Hesalite , Plexiglas , Acrylite , Lucite , and Perspex , among several others ( see below ).
The principal application, consuming approximately 75% of the MMA, is the manufacture of polymethyl methacrylate acrylic plastics . Methyl methacrylate is also used for the production of the co-polymer methyl methacrylate-butadiene-styrene (MBS), used as a modifier for PVC.
The so-called "LiMA" technology stands for "Leading in Methacrylates" and involves a new production method for methacrylates. This production is designed to be more environmentally friendly than traditional production methods due to lower energy and water consumption. [34] [35] [36] The production capacity is estimated at 250,000 tons per year ...
A large family of acrylate-like polymers are derived from methyl methacrylate and many related esters, especially polymethyl methacrylate. A second large family of acrylate-like polymers are derived from ethyl cyanoacrylate, which gives rise to cyanoacrylates.
Polymethyl methacrylate is the clear break-resistant sheeting sold as acrylic glass (or simply acrylic sheet) or under the trade name Plexiglas, Perspex, etc. Polyacrylates are used in cosmetic products as rheology modifiers and film formers, and these are typically polymers of acrylic acid fluids.
Methyl acrylate is after butyl acrylate and ethyl acrylate the third most important acrylic ester with a worldwide annual production of about 200,000 tons in 2007. [16] Poly(methyl acrylate) is a tacky material near room temperature, and as such it is not particularly useful as a structural material.
This process, which is known as the “Andrussow Process”, is the most important method for the industrial production of hydrogen cyanide as a preliminary product for the synthesis of polyamide 66 and for acrylic glass (polymethyl methacrylate).
Poly(ethyl methacrylate) (PEMA) is a hydrophobic synthetic acrylate polymer. It has properties similar to the more common PMMA, however it produces less heat during polymerization, has a lower modulus of elasticity and has an overall softer texture. [7] It may be vulcanized using lead oxide as a catalyst [8] and it can be softened using ethanol.