BEPD (2-butyl-2-ethyl-1, 3-propanediol): A branched diol for high performing polyesters for coil coatings was written by Sorensen, Kent;Bernquist, Henrik;Ramakrishnan, S.;Saindane, Bhushan. And the article was included in Paintindia in 2013.HPLC of Formula: 115-84-4 The following contents are mentioned in the article:
Coil coating pre-coated metal, is a growing coating technol. due to its economic and sustainable advantages. The coating not only needs to be flexible enough so that it can be post-formed, but also give hardness, weather resistance, corrosion protection and be decorative. Polyesters are the workhorse resin for coil coatings and offer an economical coating with a very good performance balance overall, but the level of performance also depends on the monomer composition used. BEPD is an attractive choice here for achieving high quality polyesters due to its neo-structure and large bulky side-groups. The absence of βhydrogens improves the stability of the polyester when exposed to environmental factors and it also improves the thermal stability. Bulky side-groups protect the ester bonds against hydrolysis, break the crystallinity tendency without sacrificing the performance, introduce flexibility and give some lower viscosity to the coatings. The bulky side-groups do not give any prolonged esterification time as might have been expected. In this paper BEPD is compared with other glycols, e.g., neopentylglycol in coil polyesters. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4HPLC of Formula: 115-84-4).
2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.HPLC of Formula: 115-84-4
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts