Search results
Results from the WOW.Com Content Network
The standard industrial reaction for producing methyl acrylate is esterification of acrylic acid with methanol under acid catalysis (sulfuric acid, p-toluenesulfonic acid or acidic ion exchangers. [7]). The transesterification is facilitated because methanol and methyl acrylate form a low boiling azeotrope (boiling point 62–63 °C). [8]
Methacrylic acid undergoes several reactions characteristic of α,β-unsaturated acids (see acrylic acid). These reactions include the Diels–Alder reaction and Michael additions. Esterifications are brought about by acid-catalyzed condensations with alcohols, alkylations with certain alkenes, and transesterifications.
Often, acrylate refers to esters of acrylic acid, the most common member being methyl acrylate. These acrylates contain vinyl groups . These compounds are of interest because they are bifunctional : the vinyl group is susceptible to polymerization and the carboxylate group carries myriad functionalities.
Methyl acrylate; The anion of methacrylic acid This page was last edited on 4 February 2015, at 16:22 (UTC). Text is available under the Creative Commons Attribution ...
The reactions by the direct oxidation method consist of two-step oxidation of isobutylene or TBA with air to produce methacrylic acid and esterification by methanol to produce MMA. [10] CH 2 =C(CH 3) 2 or (CH 3) 3 C−OH + O 2 → CH 2 =C(CH 3)−CHO + H 2 O CH 2 =C(CH 3)CHO + ½ O 2 → CH 2 =C(CH 3)CO 2 H CH 2 =C(CH 3)CO 2 H + CH 3 OH → CH ...
Acrylate polymers are derived from but do not contain the acrylate group. [4] The carboxyl group of acrylic acid can react with ammonia to form acrylamide, or with an alcohol to form an acrylate ester. Acrylamide and methyl acrylate are commercially important examples of α,β-unsaturated amides and α,β-unsaturated esters, respectively. They ...
This is referred to as air inhibition and is a diffusion-controlled reaction with rates typically in the order of 10 7 –10 9 mol −1 s −1, [3] the resulting peroxy radicals (ROO•) are less reactive towards polymerisation. However air stabilisation is not suitable for monomers with which it can form explosive peroxides, such as vinyl ...
An acrylic resin is a thermoplastic or thermosetting plastic substance typically derived from acrylic acid, methacrylic acid and acrylate monomers such as butyl acrylate and methacrylate monomers such as methyl methacrylate. Thermoplastic acrylics designate a group of acrylic resins typically containing both a high molecular weight and a high ...