Related Products of 120-61-6, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 120-61-6, Name is Dimethyl terephthalate, SMILES is O=C(OC)C1=CC=C(C(OC)=O)C=C1, belongs to esters-buliding-blocks compound. In a article, author is Hayashi, Mikihiro, introduce new discover of the category.
Dominant Factor of Bond-Exchange Rate for Catalyst-Free Polyester Vitrimers with Internal Tertiary Amine Moieties
Catalyst-free vitrimers have attracted attention for practical application of the vitrimer concept, which requires fundamental knowledge of physical property tuning. We prepared catalyst-free vitrimers by cross-linking amorphous polyesters bearing COOH side groups with tetraepoxy compounds bearing tertiary amines (4,4′-methylenebis(N,N-diglycidylaniline), abbreviated as Mb-epoxy). The obtained network possessed ester and OH groups, and the amino moieties worked as internal catalysts for trans-esterification-based bond exchange. The competing effect of cross-link density and concentration of amines was investigated for samples with different fractions of Mbepoxy, revealing that cross-link density, which governs chain mobility, was the dominant factor in the determination of bond-exchange rate.
Related Products of 120-61-6, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 120-61-6.