Four linear biobased fatty ethers (di-n-dodecyl, di-n-tetradecyl, di-n-hexadecyl, and di-n-octadecyl ethers) have been synthesized from free fatty alcohols according to a green and simple efficient method. Their melting temperatures, T-m, were studied by using the differential scanning calorimetry (DSC) technique. Ethers showed higher T-m (28-62 degrees C) than their corresponding alcohols, but the temperature difference between one ether and its alcohol rapidly decreases as the carbon number in the molecules increases. Melting enthalpy, triangle H-m, of an ether was approximately twice the triangle H-m of its corresponding alkanol. Flow properties were also studied between T-m and 100 degrees C. Ethers behaved as Newtonian liquids with viscosities from 1.8 to 20 mPa.s. Below 80 and 6S degrees C, respectively, di-n-dodecyl and di-n-tetradecyl ethers showed lower viscosity than their corresponding alcohol. The temperature viscosity curves were fitted with an Arrhenius-type relationship. Flow activation energies were significantly lower for the ethers than for the alcohols: around 20 and 28 kJ/mol, respectively.