A thermo-reversible furfuryl poly(thioether)-b-polysiloxane-b-furfuryl poly(thioether) triblock copolymer as a promising material for high dielectric applications

Abstract

The key to achieving homogenous dielectric elastomers (DEs) with broader application prospects is obtaining a high dielectric constant (ε′), excellent mechanical properties, and self-healing abilities.

Improved electrical actuation and dielectric strength of rubber composites with polydopamine noncovalent and silane covalent modification of carbon nanotube

“…9(c)). 39 The maximum actuated strain of the PDA‐Si747@CNT/ENR composites increases to 17.9% at 55.5 kV mm −1 , which is 152% higher than that of CNT/ENR composites. In addition, the dielectric strength of CNT/ENR composites decreases with increasing filler loading, as demonstrated in Fig.…”

A UV-responsive mechanically robust insulating polymer that achieves intrinsic self-healing of electrical tree damage based on reversible anthracene photodimerization

“…This characterization showed that the tensile strength of HCIS-EP was comparable to that of conventional EP, and the strength remained high after five cycles of decrosslinking and crosslinking. Compared with the selfhealing materials reported in other studies, [36][37][38][39][40][41][42][43][44][45] ISEP-RAP in this study had major advantages in terms of excitation conditions, mechanical properties, and healing (Fig. 8(b)).…”

Thermoresponsive polymers in non-aqueous solutions

“…A thermoresponsive dielectric elastomer, poly(thioether)- b -polysiloxane- b -furfuryl poly(thioether) triblock copolymer, was obtained from the silicon alkoxide catalysed ROP of furfuryl glycidyl ether and carbonyl sulfide followed by the Diels–Alder reaction with bismaleimide (PSiFGE-BMI). 205 The triblock copolymer underwent a reversible de-crosslinking reaction when heated up from room temperature to 160 °C in DMF. DSC analyses revealed the appearance of an endothermic peak in the range 120–180 °C, with a maximum heat flow at around 150 °C, indicating the rupture of the crosslinking network.…”