Ethyl acrylate

About: Ethyl acrylate is a research topic. Over the lifetime, 3859 publications have been published within this topic receiving 43348 citations. The topic is also known as: ethyl ester of acrylic acid & ethyl propenoate.

Alkali soluble latex thickeners

Abstract: Alkali soluble thickeners are disclosed which are aqueous emulsion copolymers of: (A) about 20-70 weight percent of an alpha, beta-monoethylenically unsaturated carboxylic acid, typically methacrylic acid; (B) about 20-80 weight percent of a monoethylenically unsaturated monomer lacking surfactant capacity, typically ethyl acrylate; (C) about 05-60 weight percent of a nonionic urethane monomer which is the urethane reaction product of a monohydric nonionic surfactant with a monoethylenically unsaturated monoisocyanate, preferably one lacking ester groups like alpha, alpha-dimethyl-m-isopropenyl benzyl isocyanate; and (D) from 0 up to about 2 weight percent of a polyethylenically unsaturated monomer These emulsion copolymers are solubilized in water with the aid of an alkali, like ammonium hydroxide When the copolymers are added to latex paints and neutralized, the viscosity of the paint is increased, brush drag is increased, and the paint rheology is otherwise improved

Initiated Chemical Vapor Deposition (iCVD) of Poly(alkyl acrylates): An Experimental Study

Abstract: In a two-part investigation, an experimental study and a kinetic model analysis of the initiated chemical vapor deposition (iCVD) of alkyl acrylate polymers are described. In this first part, an experimental study was performed to look at the effect of process parameters on iCVD polymerization. A homologous series of alkyl acrylates, from ethyl up to hexyl acrylate, were iCVD polymerized. The resulting polymers matched well spectroscopically with those from liquid-phase polymerization, demonstrating that stoichiometric polymers with no observable cross-linking can be achieved in a chemical vapor deposition environment. Deposition rate and molecular weight increased by a factor of over 300 and 60, respectively, when monomer saturated vapor pressure, Psat, was reduced from 42.6 to 0.584 Torr at equal gas pressures, PM. Over three times increase in deposition rate was observed for ethyl acrylate when substrate temperature was reduced from 29 to 17 °C. These trends are attributed to an increase in PM/Psat or,...

Liquid emulsion polymers useful as pH responsive thickeners for aqueous systems

Abstract: Novel aqueous liquid emulsion polymers are prepared by the copolymerization of (A) about 15-60 weight percent of a C 3 -C 8 α,β-ethylenically unsaturated carboxylic acid monomer, preferably acrylic or methacrylic acid or a mixture thereof with itaconic or fumaric acid, (B) about 15-80 weight percent of a nonionic copolymerizable C 2 -C 12 α,β-ethylenically unsaturated monomer, preferably a monovinyl ester such as ethyl acrylate or a mixture thereof with styrene, acrylonitrile, vinyl chloride or vinyl acetate, and (C) about 1-30 weight percent of certain nonionic vinyl surfactant esters, such as nonylphenoxypoly(ethyleneoxy) 9 ethyl acrylate, to give an emulsion copolymer stable as an aqueous colloidal dispersion at an acid pH lower than about 5.0 but responsive to pH adjustment with base. These emulsion polymers adjusted to a pH of about 5.5 or higher are effective thickeners for a wide variety of aqueous systems including cosmetic products, drilling muds, and particularly aqueous coating compositions such as latex paint.