During the spinning process in spiders and silkworms ions are amongst several other parameters crucial for mediating the transition from the solubilized random coil and/ or helical conformation to crystalline â sheets. Prior to the assembly into â sheets, which give rise to a unique combination of properties, ions inhibit the interchain hydrogen bonding. In this presentation we will show that under specific conditions water can be a good solvent for a range of hydrogen bonded aliphatic polymers including polyamides. Depending on the presence of monovalent or divalent ions and their ionic strength, the dissolution temperature of polyamides can be suppressed to the extent that the amorphous polyamides can be obtained at room temperature. These amorphous polyamides can be oriented, and restoration of hydrogen bonding in the oriented structures can be perceived with the successful removal of the ionic motifs. With the help of dynamic NMR, FTIR spectroscopy and X-ray diffraction the dissolution process of polyamides, shielding and de-shielding process of hydrogen bonding is investigated. Different states of water molecules and their interaction with the polyamides will be also discussed. References: 1. Self-organization of Oligopeptides Obtained on Dissolution of Feather Keratins in Superheated Water; Jie Yin, Sanjay Rastogi, Ann E. Terry, and Crisan Popescu; Biomacromolecules 2007, 8, pp 800-806 2. Dissolution of Hydrogen-Bonded Polymers in Water: A Study of Nylon-4,6; S Rastogi, AE Terry, E Vinken; Macromolecules 2004; 37(24) pp 8825 – 8828 3. The Influence of Hydrogen Bonding on the conformaational Changes, the Brill Transition, and Lamellae Thickening in (Co)polyamides, Vinken, E., Terry, A.E., Koning, C.E. and Rastogi, S., Macromolecules, 39, 2006, pp 2546-2552. 4. Vinken, E., Terry, A.E., van Asselen, O., Spoelstra, A.B., Graf, R. and Rastogi, S., ''Role of Superheated Water in the Dissolution and Perturbation of Hydrogen Bonding in the Crystalline Lattice