Apparent properties of waterborne polyurethane emulsion was written by Ma, De-rong;Hu, Zheng-shui. And the article was included in Qingdao Keji Daxue Xuebao, Ziran Kexueban in 2013.Quality Control of 2-Butyl-2-ethylpropane-1,3-diol The following contents are mentioned in the article:
A high solid-containing waterborne polyurethane emulsion was prepared using IPDI, polyester polyol and dimethylolbutyric acid (DMBA) by self-emulsification method. Effects of emulsification temperature, small mol. diol and chain extender on emulsion viscosity, particle size and colloid morphol. were investigated. The results showed that the solid content of emulsion with low viscosity and good stability could reach 45% when DMBA mass fraction was 5.5% and emulsification temperature was 2°C. By adding 2-butyl-2-ethyl-1, 3-propanediol (BEPD) or chain extender isophorone diamine (IPDA), the particle size became smaller and the emulsion viscosity became lower by adjustment of intermol. interaction. Moreover, emulsion stability could be improved by using non-ionic hydrophilic chain extender trimethylolpropane polyethylene glycol monomethyl ether (TMPEG) which could shield the micelle electrostatic repulsion by means of synergy. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Quality Control of 2-Butyl-2-ethylpropane-1,3-diol).
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. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Quality Control of 2-Butyl-2-ethylpropane-1,3-diol
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts