Coordination Dynamics and Thermal Stability with Aminal Metallogels and Liquids.

ABSTRACT: In this article, we review a dynamic covalent gel system developed as a high temperature well construction fluid. The key gel/fluid phase changes and related materials properties are addressable via the constitutional and coordination dynamics of the equilibrium and non-equilibrium molecular species comprising the material. The interplay between these species and external stimuli leads to material adaptability. Specifically, the introduction of metal ions into a non-equilibrium hemiaminal gel reverts this phase into a non-equilibrium liquid. When heated, this liquid transforms itself catalytically into the thermodynamically favoured closed-ring polyhexahydrotriazine (PHT) gel product. The temperature stability of different PHT gel formulations is evaluated as a function of the inclusion of

SUBMITTER: Boul PJ 

PROVIDER: S-EPMC6723235 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature