Crystallization Behavior of Strongly Interacting Chains

摘要: The crystallization behavior of functionalized polymethylene chains with carbamate esters placed periodically between alternating docosyl and octyl segments has been examined infrared spectroscopy. Specific features both the interactions chain conformation have found. kinetics, including induction period, can be followed time-resolved spectroscopy (5 s time resolution) occurs in three stages. kinetics local hydrogen-bonding rearrangement is quite different from methylene stem ordering. interchain are characterized by a broad distribution states. initial melt consists highly interacting (75% hydrogen bonded). During crystallization, this asymmetric ensemble states changes continuously to one dominated that characteristic ordered structure. Even resolution achievable, specific crystallite nucleus could not captured.