On January 31, 1981, Sivergin, Yu. M. published an article.Reference of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate) The title of the article was Dielectric relaxation in oligoester acrylates and terpolymers on their basis. And the article contained the following:
Oligoester acrylates showed 2 dielec. relaxation processes at 100-300 K, with the high temperature-low frequency dispersion being designated the α and the low temperature-high frequency dispersion, the β’ process. The α maximum corresponded to the glass transition and was at the highest temperature for an acrylate containing Cl and the lowest temperature for the least polar compound, which also had a low loss factor. The β’ process was caused by internal motion of the polar group-containing kinetic units in the oligomer chain, and was mainly due to the motion of carbonate group in mols. that contain these. Above the glass temperature, all samples had a rapid increase of the loss factor with temperature In the case of oligoester acrylate polymers, those based on diacrylates of ethylene, tetramethylene, and decamethylene glycols, the relaxation observed at <275 K was a β process caused by motions of carboxylate groups bound to the main chain. The dielec. relaxation of the polymer based on triethylene glycol dimethacrylate at <275 K was a β' process caused by the motion of the C-O-C group. At 300-400 K, a β process caused by local motion of macromol. chain members adjacent to carboxylate groups was observed in this polymer. A wide variety of previously reported results was also discussed. The experimental process involved the reaction of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)(cas: 1985-51-9).Reference of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)
The Article related to oligoester acrylate dielec relaxation, Plastics Manufacture and Processing: Physical Properties and Testing Methods and other aspects.Reference of 2,2-Dimethylpropane-1,3-diyl bis(2-methylacrylate)
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics