Omonov, Tolibjon S’s team published research in ACS Applied Polymer Materials in 2022-09-09 | 112-63-0

ACS Applied Polymer Materials published new progress about Complex modulus, tan δ. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.

Omonov, Tolibjon S.; Patel, Vinay R.; Curtis, Jonathan M. published the artcile< Biobased Thermosets from Epoxidized Linseed Oil and its Methyl Esters>, Application of C19H34O2, the main research area is biobased thermoset epoxidized linseed oil methyl ester.

This work describes a model biobased epoxy thermoset resin incorporating epoxidized linseed oil fatty acid Me esters (ELOMEs) with trimellitic anhydride (TMA) as a curing agent. Unlike epoxidized linseed oil (ELO), ELOME acts as a solvent at moderate temperatures and can dissolve the curing agent. Thermosets were prepared using a range of molar ratios of ELOME, or ELOME/ELO mixtures, to TMA. It was found that the storage moduli and glass-transition temperatures of the resulting thermosets increase with the increasing concentration of the curing agent due to enhanced crosslinking. On the other hand, the dynamic mech. anal. demonstrated that an increase in the curing agent content, especially above the stoichiometric ratios of reactive moieties, hinders the formation of the crosslinked network when an excessive amount of TMA esters of ELOME are formed. These consume a large proportion of the available epoxy moieties and consequently limit further crosslinking and polymer network growth. The glass-transition temperature (Tg) of these resins was between 80 and 86°C, depending on the stoichiometric ratio of the reactive moieties. In thermoset systems prepared with ELOME/ELO mixtures, an improvement in the thermomech. properties (increase of Tg up to 102°C) was observed, which was associated with the increase in crosslinking d. resulting from the branched triacylglycerol structure of epoxidized linseed oil.

ACS Applied Polymer Materials published new progress about Complex modulus, tan δ. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.

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