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基于聚(2,5-呋喃二甲酸丙二醇酯)和硅铝酸盐粘土的原位制备纳米复合材料的合成与表征

Synthesis and Characterization of In-Situ-Prepared Nanocomposites Based on Poly(Propylene 2,5-Furan Dicarboxylate) and Aluminosilicate Clays.

作者信息

Papadopoulos Lazaros, Terzopoulou Zoi, Bikiaris Dimitrios N, Patsiaoura Dimitra, Chrissafis Kostantinos, Papageorgiou Dimitrios G, Papageorgiou George Z

机构信息

Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.

Solid State Physics Section, Physics Department, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.

出版信息

Polymers (Basel). 2018 Aug 23;10(9):937. doi: 10.3390/polym10090937.

DOI:10.3390/polym10090937
PMID:30960862
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6403680/
Abstract

Poly(propylene 2,5-furan dicarboxylate) (PPF), or poly(trimethylene 2,5-furan dicarboxylate) (PTF), is a biobased alipharomatic polyester that is expected to replace its fossil-based terephthalate (PPT) and naphthate (PPN) homologues. PPF possesses exceptional gas barrier properties, but its slow crystallization rate might affect its success in specific applications in the future. Therefore, a series of PPF based nanocomposites with the nanoclays Cloisite-Na (MMT), Cloisite-20A (MMT 20A), and halloysite nanotubes (HNT) were synthesized via the in situ transterification and polycondensation method. The effect of the nanoclays on the structure, thermal, and crystallization properties of PPF was studied with several methods including infrared spectroscopy (IR), Nuclear Resonance Spectroscopy (¹H-NMR), Wide Angle X-ray Diffraction (WAXD), Thermogravimetric Analysis (TGA), and Differential Scanning Calorimetry (DSC). The insertion of the nanofillers in the polymer matrix altered the crystallization rates, and TGA results showed good thermal stability, since no significant mass loss occurred up to 300 °C. Finally, the degradation mechanism was studied in depth with Pyrolysis-Gas Chromatography/Mass Spectroscopy, and it was found that β-scission is the dominant degradation mechanism.

摘要

聚(2,5-呋喃二甲酸丙二醇酯)(PPF),或聚(2,5-呋喃二甲酸三亚甲基二醇酯)(PTF),是一种生物基脂肪族聚酯,有望取代其基于化石的对苯二甲酸酯(PPT)和萘二甲酸酯(PPN)同系物。PPF具有优异的气体阻隔性能,但其缓慢的结晶速率可能会影响其未来在特定应用中的成功。因此,通过原位酯交换和缩聚方法合成了一系列基于PPF的纳米复合材料,其中纳米粘土为钠基蒙脱土(MMT)、20A 型蒙脱土(MMT 20A)和埃洛石纳米管(HNT)。采用红外光谱(IR)、核磁共振光谱(¹H-NMR)、广角X射线衍射(WAXD)、热重分析(TGA)和差示扫描量热法(DSC)等多种方法研究了纳米粘土对PPF结构、热性能和结晶性能的影响。纳米填料在聚合物基体中的插入改变了结晶速率,TGA结果显示出良好的热稳定性,因为在300°C之前没有明显的质量损失。最后,通过热解气相色谱/质谱对降解机理进行了深入研究,发现β-断裂是主要的降解机理。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/00893338ca9b/polymers-10-00937-g011a.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/0c3aa0b6f7b9/polymers-10-00937-g008.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/88448ad8f8d3/polymers-10-00937-sch003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/00893338ca9b/polymers-10-00937-g011a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/826e982892ae/polymers-10-00937-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/02d5b4890f5f/polymers-10-00937-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/2a1aaea03d5e/polymers-10-00937-sch002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/b87a52be4082/polymers-10-00937-g002a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/c9923c2b2dc5/polymers-10-00937-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/2f158ad2309f/polymers-10-00937-g004.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/74c5877cbb9d/polymers-10-00937-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/0c3aa0b6f7b9/polymers-10-00937-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/58add22bdf49/polymers-10-00937-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/3d524e49de13/polymers-10-00937-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/88448ad8f8d3/polymers-10-00937-sch003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec91/6403680/00893338ca9b/polymers-10-00937-g011a.jpg

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