Fig. 4. (a) Room temperature thermal conductivity of LAPE versus the standard deviation (σ) of the chain length distribution. In the sample with L0 = 15 nm and σ = 3 nm, local thermal conductivities (κ1, κ2) appear due to the folding of the polyethylene chains. (b) The chain length distribution in the polyethylene samples for L0 = 10 nm (solid symbols) and L0 = 15 nm (empty symbols), respectively. The dashed lines are drawn to guide the eye.
