Role of hydrophobic bonding in the contraction of nylon 66 in phenolic solutions

摘要

AbstractRate constants for intermolecular bond breaking (k1) and bond re‐formation (k2) were calculated from contraction measurements. Variation of ΔH‡ and ΔS‡ fork1with phenol substituents and concentration suggests the existence of hydrophobic bonding between the solution and the polymer activated complex. This behavior has been substantiated by correlating ΔH‡ and ΔS‡ fork1with a parameter related to h