Biocompatible linear diamides derivative-nucleated biodegradable poly(ethylene succinate): Tailored crystallization kinetics, aggregated structure and thermal degradation. (January 2021)

• Record Type: Journal Article
• Authors: Zhou, Shanshan; Wei, Ziyu; Sun, Yongyan; Zhu, Zhe; Xie, Zhanghua; Ma, Huimin; Yin, Jing; Wang, Junsheng; Yang, Jinjun
• Is Part Of: Polymer degradation and stability. Volume 183(2021)
• Publication Date: 2021-01
• Subjects: Poly(ethylene succinate) -- Nucleator -- Crystallization -- Aggregated structure -- Thermal stability; Polymers -- Deterioration -- Periodicals; Stabilizing agents -- Periodicals; Polymères -- Dégradation -- Périodiques; Stabilisants -- Périodiques; 668.9
• DOI: 10.1016/j.polymdegradstab.2020.109428
• Languages: English
• ISSNs: 0141-3910

Abstract

Highlights: Biocompatible EBH as a nucleator significantly enhanced crystallizability of biodegradable PES. EBH interacted with crystalline carbonyl group and amorphous ester group of PES. Rearrangement of carbonyl segment is faster than that of CC backbone for PES. EBH increased thermal degradation temperature of PES. Abstract: A biocompatible linear organic nucleator (EBH) was incorporated into biodegradable linear aliphatic poly(ethylene succinate) (PES) polyester to investigate effect of EBH on crystallization kinetics, aggregated structure and thermal stability of PES. Crystallization kinetic results suggested that EBH enhanced significantly crystallization rate and decreased substantially crystallization time of PES, and EBH is an excellent nucleator of PES. FTIR measurement indicated that hydrogen bond interaction exists between carbonyl group (of crystalline phase) and ester group (of amorphous phase) of PES and EBH. In-situ FTIR results revealed that upon incorporation of EBH, rearrangement of carbonyl group is faster than CC backbone of PES in crystallization process. Thermal degradation temperature of PES increased in the presence of EBH. EBH had little effect on crystal structure of EBH. Mechanisms on nucleation and enhanced thermal stability of PES were proposed and discussed in detail.