The degradation progress of VHP and VMP bio-based imine epoxy vitrimers in 0.2 M HCl solution(THF/H2O, V/V) with different solvent ratios at 23 °C

The degradation progress of VHP and VMP bio-based imine epoxy vitrimers in 0.2 M HCl solution(THF/H2O, V/V) with different solvent ratios at 23 °C

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Traditional epoxy resin materials are widely used in coatings, composite materials, electronic packaging materials, etc. They are usually made of unsustainable fossil resources and cannot be recycled under mild conditions. Degradable thermosetting resins with dynamic covalent structure provide a potential solution to this conflict. In this paper, u...

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... 93 In a similar study, two different imine exchange based vitrimers were synthesized using vanillin/1,6-hexylenediamine (VHP) and vanillin/m-xylylenediamine (VMP) curing agents. 94 The tan d result shows that the T g of VHP and VMP bio-based imine epoxy vitrimers are 83°C and 96°C, respectively, whereas the storage modulus values are 2600 MPa and 2650 MPa, respectively. This could be attributed to the higher rigidity chain structure for VMP vitrimer ( Fig. 12a and b). ...
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