Abstract A multiple amides-based linear organic compound (TMC-300) was synthesized and as an efficient nucleator was incorporated into PHBH to fabricate PHBH/TMC-300 composite to investigate effect of TMC-300 on crystallization behavior of PHBH in-depth. Nucleation capacity of TMC-300 on the PHBH is significantly higher than those of two conventional inorganic nucleators. TMC-300 exhibits dual effects on crystallization behavior of PHBH in terms of its weight fraction (fTMC-300). Low fTMC-300 increased substantially crystallization rate, crystallinity and crystal density, and decreased greatly crystallization time of PHBH, but relative higher fTMC-300 hindered slightly crystallization process. Hydrogen bond interaction exists between PHBH and TMC-300 and facilitates excellent dispersion of TMC-300 in PHBH matrix. In-situ FTIR measurement suggests that hydrogen interaction hindered reorganization of ester bond in crystallization process of PHBH. Mechanisms on nucleation of PHBH and effect of TMC-300 on crystallization behavior of PHBH, are proposed and discussed.

中文翻译：

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细菌共聚酯聚（3-羟基丁酸酯-共-3-羟基己酸酯）的调节结晶行为：线性多元酰胺衍生物作为成核剂的影响

摘要 合成了一种多酰胺基线性有机化合物（TMC-300），并将其作为一种高效的成核剂加入到PHBH中制备了PHBH/TMC-300复合材料，深入研究了TMC-300对PHBH结晶行为的影响。TMC-300 在 PHBH 上的成核能力明显高于两种常规无机成核剂。TMC-300 就其重量分数 (fTMC-300) 而言，对 PHBH 的结晶行为表现出双重影响。低fTMC-300显着提高了PHBH的结晶速率、结晶度和晶体密度，大大降低了PHBH的结晶时间，但相对较高的fTMC-300对结晶过程有轻微的阻碍。PHBH 和 TMC-300 之间存在氢键相互作用，有利于 TMC-300 在 PHBH 基质中的良好分散。原位 FTIR 测量表明，氢相互作用阻碍了 PHBH 结晶过程中酯键的重组。提出并讨论了 PHBH 的成核机制和 TMC-300 对 PHBH 结晶行为的影响。