Nylon 6,6 is formed from hexamethylene diamine and adipic acid in a reversible reaction with an equilibrium constant k = 170 at 270˚c. a sack of nylon 6,6 chips, intended for fiber extrusion from the melt, has been sitting in a damp warehouse and has gained 5% water (5 g h2o per 95 g dry polymer). if this material is fed to an extruder operating at 270˚c and all the adsorbed water reacts until the polymer comes to equilibrium what will be the final degree of polymerization?

intermolecular forces are the forces between molecules or particles.

there are two kinds of van der waals forces: weak london dispersion forces and stronger dipole-dipole forces.

in molecule of water there are dipole-dipole forces between negatively charged oxygen from one molecule of water and positively charger hydrogen of another molecule of water.

hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom (h), covalently bound to a highly electronegative atom such as flourine (f), oxygen (o) and nitrogen (n) atoms.