Functional materials with controllable viscosity

摘要

The present invention relates to an innovative method for controlling the viscosity of, for example, adhesives or coating formulations. The method for controlling viscosity allows very rapid thermoplastic curing of a formulation even at room temperature and a significant reduction in the viscosity at higher temperatures, thereby regaining the capacity for simple processing and allowing, for example, the originally bonded substrates to be separated from one another again with ease. A particular aspect in this context is that a plurality of cycles of thermoplastic curing and a significant reduction in the viscosity are possible with the present system.

主权项

1. A formulation comprising:
a component A which has two dienophilic double bonds, at least one of which bonds is a carbon-sulphur double bond; and a component B which has two diene functionalities, wherein: component A, B, or both, is a polymer, and the formulation is reversibly switchable at room temperature by means of a Diels-Alder reaction or a hetero-Diels-Alder reaction.