Catalyst-free self-healing bio-based vitrimer for a recyclable, reprocessable, and self-adhered carbon fiber reinforced composite

Fully Biobased Vitrimers: Future Direction toward Sustainable Cross‐Linked Polymers

“…Chen and coworkers synthesized vitrimers by reaction of adipic acid (A7, Figure 5), a diacid derived from vegetable oils, with epoxidized menthane diamine (E5, Figure 6), obtained by glycigylation of menthane diamine with epichlorohydrin. [82] 1,8p-Menthane-diamine can be synthesized from turpentine, a natural product from pine tree. [83] The tertiary amines internally present in the system catalyzed the transesterification reactions without the need of additional catalysts.…”

Facile and fast preparation of a tung oil-based bendable transparent electrode with mechanical strength and environmental stability via infiltration of silver nanowires into oxygen-inhibited surface layers

“…The topological network rearrangement during relaxation is accomplished by hydrogen bond dissociation and ester bond exchange at high temperature. According to the Arrhenius correlation of τ , the activation energy ( E a ) of PAMET network rearrangement can be calculated by using the following formula: 40,57 τ = τ 0 exp( E a / RT ), where τ 0 is a constant (s), R represents the ideal gas constant, and T is the temperature. The calculated Arrhenius equation of PAMET0 and PAMET1.25 is shown in the ESI †.…”

Recyclable CFRPs with extremely high Tg: hydrothermal recyclability in pure water and upcycling of the recyclates for new composite preparation

“…2d summarizes the T g and tensile strength of the reported epoxy materials containing dynamic covalent bonds. 20,24,26,[39][40][41][42][43][44][45][46][47] It is well understood that the T g of a thermosetting polymer is closely related to its backbone stiffness and crosslink density. In most of the reported recyclable CFRPs, the polymer matrixes are purposely designed with exible backbone structures and low crosslink densities to achieve the desired depolymerization rate under mild conditions, which consequently leads to low T g s of the resulting materials.…”