Fig. 1: A network of unusually long chains of covalent bonds crosslinked by domains of physical bonds.
From: Unusually long polymers crosslinked by domains of physical bonds
a Undeformed network. b When the network without precut crack is subject to a moderate stress, the chains in the domains slip negligibly, and domains function like hard particles. c When the network with a precut crack is stretched, at the crack tip, the chains in the domains slip, transmitting high tension over a long distance.
