Polymorphism, thermal stability and enzymatic degradation of poly(1,4-butylene adipate) tailored by a benzene-1,3,5-tricarboxamide-based nucleating agent
writer：Yang Jinjun, Wang Xiaomin, Liang Rong, Kong Rui, Sun Yuebing, Tang Jingjing, Li Lingling, Xue Lei, C
keywords：多晶，熱穩定性，酶降解，聚酯
source：期刊
specific source：Journal of Materials Science
Issue time：2018年
An organic nucleating agent (NA), N,N0,N00-tricyclohexyl-1,3,5-benzenetricarboxylamide
(TMC-328), was incorporated into biodegradable poly(1,4-butylene
adipate) (PBA) to prepare the PBA/TMC-328 blend system to investigate the
effect of the TMC-328 NA on the crystallization kinetics, polymorphism, thermal
stability and biodegradation of the PBA. Due to the excellent nucleation ability,
the TMC-328 enhanced the crystallization temperature, crystallization rate,
crystal density and degree of crystallinity of the PBA. The TMC-328 facilitated
the formation of the alpha-crystal, accelerated the beta-to-alpha-phase transition,
and tailored the polymorphic crystalline structure of the PBA. The incorporated
TMC-328 increased the thermal stability and decreased the enzymatic
degradation rate of the PBA. The mechanisms of the tailored polymorphism,
enhanced thermal stability and decreased biodegradation rate of the PBA in the
presence of the TMC-328, have also been proposed and discussed. The PBA/
TMC-328 blend provides us an informative model to shed more light on the
correlation of hydrogen bond interaction, polymorphism and property of
polymorphic polymeric material.