Literature values of DC electrical conductivity DC at 70 C (closed symbols: leakage current measurements at 30 kV mm-1; open symbols: broadband dielectric spectroscopy (BDS) at 10 V mm-1) versus highest peak melting temperature Tm of LDPE,[18-22]XLPE (crosslinked LDPE),[18,20,22,23]crosslinked HDPE[18]and iPP (grey diamonds: thermoplastic; grey/black diamonds: crosslinked with DCP),[21,24]PE copolymers and blends that underwent click chemistry type crosslinking (upward red triangles)[19,25,26]and ionomers (downward red triangles),[22]PE blends comprising LDPE and HDPE (blue circles: thermoplastic; blue/black circles: crosslinked with DCP),[18,27]PP copolymers and blends (green squares)[20,23,26]and iPP:PE blends (orange circles); *80 C and 8 kV mm-1 and +70 C and 20 kV mm-1.
