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(organic chemistry)
A polymer of an ester or salt of acrylic acid.



a polymer of esters of acrylic acid or methacrylic acid, with the general formula

where R′ = H or CH3 (for acrylic and methacrylic acids, respectively) and R is an aliphatic, carbocyclic, or heterocyclic group.

Polyacrylates containing the R groups methyl (— CH3), ethyl (—C2 H5), n-butyl (—C4 H9) and cyclohexyl (—CeH11) are of the greatest industrial importance. These polyacrylates are transparent thermoplastic polymers that are physiologically harmless and readily soluble in organic solvents and are characterized by low resistance to oil and gasoline.

Polyacrylates are produced by polymerization of esters of acrylic and methacrylic acids (acrylates and methacrylates, respectively). Polymerization of a mixture of acrylates whose chemical structure differs in the nature of the R group yields high-strength multipurpose materials.

Polyacrylates are used in the production of organic glass (mainly polymethyl methacrylate), films, paints and varnishes, adhesives, and impregnation compositions for paper, leather, wood, and fabrics. Polyacrylates are widely used in medicine, especially in dentistry, for the preparation of artificial jaws and teeth and for fillings. Acrylate polymers and copolymers are used to make prostheses and contact lenses, as well as special castings for preserving various items. Acrylates are widely used as como-nomers to increase the plasticity of rigid polymers and to produce acrylic rubbers.


See References under POLYMER.


References in periodicals archive ?
Evaluating mechanical test results, they showed compatibility effect between synthetic urethane acrylate polymers and 3 biopolymers; also inorganic silica showed good compatibility with the urethane acrylate system.
Polymers that have hydrophobic networks, such as aromatic polymers and alkyl acrylate polymers, are used as absorbent materials for removing petroleum and petroleum-derived organic solvents from water surfaces (22-28).
Based on state-of-the art silyl acrylate polymers, true hydrolysing and an optimised biocide combination, SeaQuantum Static is self smoothing and self polishing, has a low build-up of leach layer and good mechanical properties.
Moreover, water-based UV-cured coatings have been shown to combine the flexible properties of high molecular weight polymers with the hardness of crosslinked acrylate polymers.
Previous modifications at the Belgian plant in 2002 saw DuPont broaden its range of acrylate polymers with the launch of DuPont(TM) Elvaloy(R) AC acrylate copolymers, offering high melt strength and new levels of heat resistance in easy-processing olefin-based materials.
The Hochberg study concluded that the most important dispersants from a market value viewpoint are the acrylate polymers and terpolymers, naphthalene sulfonate condensate, hydrocarbons such as [C.
Fluorinated acrylate polymers are an exception, dissolving well in carbon dioxide.
Methyl acrylate polymers as suitable materials for the conservation of stone: performance improvements--Barbara Sacchi, Laura Giannini, Marco Frediani, Luca Rosi, and Piero Frediani
Rohm & Haas Company; "Water- and Sweat-Resistant Styling Using Acrylate Polymers," Duane Krzysik, David Faivre and Dorina Ghirardi, Lubrizol Advanced Materials/Noveon; "How Hydrolyzed Jojoba Esters Enhance the Performance of the Ethnic Hair Relaxer on Hair and Scalp," Grace Hastings, Brooke Marshall, Gina Bowser and Lawrence Rheins, Ph.
His responsibilities included overseeing the operations of two $90 million business units for Rohm & Hass, whose product line includes surfactants and water soluable acrylate polymers for personal care, hair care, detergents and water treatment markets.