Effect of temperature and solvent properties on the process of complex formation between crown ether 15C5 and Na + in the (propan-1-ol + water) mixture at temperatures from T = 293.15 K to T = 308.15 K Jóźwiak, M.; Madej-Kiełbik, L.; Wasiak, M.; Jóźwiak, A.; The Journal of Chemical Thermodynamics 2017, 113, 321-329