A container for an aerosol-generating device is provided, including a tubular compartment including a liquid compound source and being formed from a polymeric material； and at least one seal formed from the polymeric material and being configured to seal the tubular compartment, where a ratio of thermal conductivity per unit weight in a radial direction of the polymeric material to thermal conductivity per unit weight in a longitudinal direction of the polymeric material is greater than about 2, or where a ratio of thermal conductivity per unit weight in the longitudinal direction of the polymeric material to thermal conductivity per unit weight in the radial direction of the polymeric material is above about 2. An aerosol-generating system is also provided, including an aerosol-generating device configured to receive the container.
