Dual effects of a diamide derivative as nucleator on crystallization kinetics and aggregated structure of biodegradable Poly(ethylene succinate)

A linear diamides derivative-containing organic compound (TMC306) as a nucleator was incorporated into biodegradable poly (ethylene succinate) (PES) to investigate effect of TMC306 on crystallization behavior and aggregated structure of PES. Upon incorporation of TMC306 with lower weight fraction (f(TMC306)), crystallization temperature (T-c), crystallization rate (k) and degree of crystallinity (X-c) of PES enhanced significantly and crystallization half-time (t(1/2)) reduced substantially. However, T-c,T- k and X-c declined progressively in the presence of higher f(TMC306). Based on IR results, it suggested that TMC-306 interacts with -C=O group of PES and C-O-C group of PES amorphous phase via hydrogen bond. Mechanisms on nucleation of PES and dual effects of TMC306 on crystallization behavior of PES were proposed and discussed in detail.

Automated summary

Incorporating TMC306 as a nucleator into PES enhances the crystallization behavior of PES at lower weight fractions, but leads to a decline in crystallization at higher weight fractions. Interaction between TMC306 and PES through hydrogen bonding is indicated by IR results.