Cas: 99-36-5 | Kasting, B. J. et al. made new progress in 2019

Methyl 3-methylbenzoate (cas: 99-36-5) is a common ester.Esters are common in organic chemistry and biological materials, and often have a pleasant characteristic, fruity odor. This leads to their extensive use in the fragrance and flavor industry. Ester bonds are also found in many polymers.Recommanded Product: 99-36-5

Kasting, B. J.;Beasley, M. S.;Guiseppi-Elie, A.;Richert, R.;Ediger, M. D. published 《Relationship between aged and vapor-deposited organic glasses: Secondary relaxations in methyl-m-toluate》. The research results were published in《Journal of Chemical Physics》 in 2019.Recommanded Product: 99-36-5 The article conveys some information:

In situ interdigitated electrode broadband dielec. spectroscopy was used to characterize the excess wing relaxations in vapor-deposited and aged glasses of methyl-m-toluate (MMT, Tg = 170 K). MMT displays typical excess wing relaxations in dielec. spectra of its supercooled liquid and glasses. Phys. vapor deposition produced glasses with degrees of suppression of the excess wing relaxation that varied systematically with deposition conditions, up to a maximum suppression of more than a factor of 3. The glass deposited at a relatively high temperature, 0.96 Tg (163 K), showed the same amount of suppression as that of a liquid-cooled glass aged to equilibrium at this temperature The suppression of the excess wing relaxation was strongly correlated with the kinetic stability of the vapor-deposited glasses. Comparisons with aged MMT glasses allowed an estimate of the structural relaxation time of the vapor-deposited glasses. The dependence of the estimated structural relaxation times upon the substrate temperature was found to be stronger than Arrhenius but weaker than Vogel-Fulcher-Tammann dependence predicted from extrapolation of relaxation times in the supercooled liquid Addnl., this work provides the first example of the separation of primary and secondary relaxations using phys. vapor deposition. (c) 2019 American Institute of Physics.Methyl 3-methylbenzoate (cas: 99-36-5) were involved in the experimental procedure.

Methyl 3-methylbenzoate (cas: 99-36-5) is a common ester.Esters are common in organic chemistry and biological materials, and often have a pleasant characteristic, fruity odor. This leads to their extensive use in the fragrance and flavor industry. Ester bonds are also found in many polymers.Recommanded Product: 99-36-5

Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics