New Physicochemical Properties of Liquid Water Resulting from Recurrent Contact with Hydrophilic Polymers. Characteristics of the Resulting Supramolecular Aggregates: The Xerosydryle.

Vittorio Elia1, Elena Napoli1, Roberto Germano2, Daniele Naviglio3, Martina Ciaravolo1, Giovanni Dal Poggetto4, Domenico Caputo3, Rosario Oliva1, Tamar A. Yinnon*5

1 Department of Chemical Sciences, University ‘‘Federico II’’, Complesso Universitario di Monte Sant’Angelo, Via Cintia, I-80126 Napoli, Italy.

2 PROMETE Srl, CNR Spin off, P.le V. Tecchio, 45  80125 Napoli, Italy. 

3 Department of Chemical, Material and Industrial Production Engineering,University “Federico II”, P.le V. Tecchio, 80  80125 Napoli, Italy

4 ECORICERCHE Srl, Via Principi Normanni 81043 Capua (CE), Italy

5 K. Kalia, D.N. Kikar Jordan, 90666, Israel

*Corresponding author e-mail:

Keywords: Water, hydrophilic polymers, water perturbed by polymers

Published: January 23, 2022

DOI: 10.14294/WATER.2021.2



Recurrent contact between water and inert, insoluble, hydrophilic polymers is common in many biological and artificial systems. During the last decade, we have shown that in water perturbed by such contact, supramolecular aggregates form. On lyophilizing the water, which was left over after the polymer was removed, a solid residue remains. The data reported in this paper show that the composition of the residue differs from that of the material with which the water was perturbed. The thermal stability of the residue is extraordinary. The thermal properties and infrared spectrum of the residue depend on the material with which the water had been in recurrent contact. The residues prepared with some types of materials are gels, others are powders and still others are apparently polymers. These residues are a new class of materials: we named this solid “Xerosydryle,” from ancient Greek: Xeros (Dry) -Ydro (Water) -Yle (Matter).

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