Effective improvement in poly( bisphenol‐A carbonate) crystallinity by ionization of its polyamide‐66 heterogeneous nucleator: The role of ion‐dipole interactions
Effective improvement in poly( bisphenol‐A carbonate) crystallinity by ionization of its polyamide‐66 heterogeneous nucleator: The role of ion‐dipole interactions
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通过聚酰胺-66异质成核剂的电离有效提高聚（双酚-A碳酸酯）结晶度：离子-偶极相互作用的作用
DOI：
10.1002/pcr2.10130
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发表时间：
2020-06
影响因子：
1.9
通讯作者：
Chonggang Wu
中科院分区：
文献类型：
--
作者：
Dachuan Ding;Jingjin Luo;Jie Wang;Zixin Yu;Yuanfu Tian;Jinqiang Tan;Zhiyuan Song;Qian Tao;Tao Hu;Chonggang Wu
分别使用HCl（0.31 mol%）和CaCl 2（2.3 mol%）在室温下成功制备了离子化聚酰胺（PA）-66。与非离子化PA-66相比，PA-66紫罗烯用作成核剂沿着胆固醇壬酸酯（CN）作为活性增塑剂，以改善聚（双酚A碳酸酯）（PC）结晶。结果表明，PA-66-HCl比PA-66-CaCl 2更有效地非均相成核PC。可能的原因是PA-66-HCl的强离子-偶极相互作用（IDI）显著提高了PC/PA-66-HCl界面相容性，从而形成了相当精细和致密的PA-66-HCl晶体，并显著提高了成核效率。然而，由于其较高的离子含量，PA-66-CaCl 2似乎与PC具有更强的IDI，较厚的无定形夹层）显著抑制PC结晶。
Ionized polyamide (PA)‐66 was successfully prepared at room‐temperature using HCl (0.31 mol%) and CaCl2(2.3 mol%), respectively. The PA‐66 ionenes, compared with the non‐ionized PA‐66, are used as a nucleator along with cholesteryl nonanoate (CN) as an active plasticizer to improve poly(bisphenol‐A carbonate) (PC) crystallization. The results show the PA‐66‐HCl heterogeneously nucleates PC more effectively than the PA‐66‐CaCl2. The possible rationale is that the strong ion‐dipole interactions (IDIs) of the PA‐66‐HCl remarkably boost the PC/PA‐66‐HCl interfacial compatibility, which results in the formation of considerably finer and denser PA‐66‐HCl crystals with significantly enhanced nucleation efficiency. However, owing to its higher ion content, the PA‐66‐CaCl2seems to have much stronger IDIs with PC that the resulting compatibility (i.e., thicker amorphous interlayers) dramatically inhibits PC crystallization.
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