Thermally Reversible Composite Material
AssigneeChung Yuan Christian University
InventorsYING-LING LIU, MENG-HAN FANCHIANG
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Abstract
The present invention discloses a thermally reversible composite material. The thermally reversible composite material comprises a Polyhedral Oligomeric Silsesquioxane (POSS) and a cross-linking agent. The Polyhedral Oligomeric Silsesquioxane comprises a plurality of dienophile groups. The cross-linking agent comprises at least two conjugated diene groups. The cross-linking agent interacts with the plurality of dienophile groups of the POSS though the conjugated diene groups to perform a thermally reversible Diels-Alder cycloaddition cross-linking reaction. The invention is applied as thermally reversible package materials.
Claims16
A thermally reversible composite material, comprising:
- a Polyhedral Oligomeric Silsesquioxane (POSS), comprising a plurality of dienophile groups;
- and
- a cross-linking agent, comprising at least two conjugated diene groups, wherein the cross-linking agent reacts with the plurality of dienophile groups of the POSS through the conjugated diene groups to carry out a thermally reversible Diels-Alder cycloaddition cross-linking reaction.
A thermally reversible composite material, comprising:
- a Polyhedral Oligomeric Silsesquioxane (POSS), comprising a plurality of dienophile groups;
- and
- a cross-linking agent, comprising at least two conjugated diene groups, the cross-linking agent interacting with the plurality of dienophile groups of the POSS through the conjugated diene groups to perform a thermally reversible Diels-Alder cycloaddition cross-linking reaction at a first temperature and a Retro Diels-Alder reaction at a second temperature, the plurality of dienophile groups of the POSS reacting with one another to perform a thermally irreversible thermosetting cross-linking reaction at a third temperature, the first temperature being lower than the second temperature, the second temperature being lower than the third temperature.
Dependencies are inferred from the claim text.