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Monohydrate and anhydrate of nylon 5I monomer 1,5-pentanediamine–isophthalate

Nylon 5I is one of the new bio-based nylon materials. Its raw material 1,5-pentanediamine (PDA) is prepared by biological methods using biomass as the raw material. The high-performance polymer materials require the original high-quality monomers. 1,5-Pentanediamine–isophthalate (PDA–IPA) was taken...

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Autores principales: Li, Zihan, Xu, Mengjie, Liu, Haodong, Wen, Qingshi, Fu, Jinqiu, Zhuang, Wei, Yang, Pengpeng, Wu, Jinglan, Ying, Hanjie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9058625/
https://www.ncbi.nlm.nih.gov/pubmed/35516270
http://dx.doi.org/10.1039/d0ra08767j
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author Li, Zihan
Xu, Mengjie
Liu, Haodong
Wen, Qingshi
Fu, Jinqiu
Zhuang, Wei
Yang, Pengpeng
Wu, Jinglan
Ying, Hanjie
author_facet Li, Zihan
Xu, Mengjie
Liu, Haodong
Wen, Qingshi
Fu, Jinqiu
Zhuang, Wei
Yang, Pengpeng
Wu, Jinglan
Ying, Hanjie
author_sort Li, Zihan
collection PubMed
description Nylon 5I is one of the new bio-based nylon materials. Its raw material 1,5-pentanediamine (PDA) is prepared by biological methods using biomass as the raw material. The high-performance polymer materials require the original high-quality monomers. 1,5-Pentanediamine–isophthalate (PDA–IPA) was taken as the direct monomer for the preparation of nylon 5I, and the crystallization was a valuable and essential approach to preparing the good-performance monomer salt. In this report, we found and obtained two crystal forms of PDA–IPA, monohydrate and an anhydrous form. Their crystal structures were determined and analyzed by single crystal X-ray diffraction (SCXRD), powder X-ray diffraction (PXRD), and Fourier transform infrared spectroscopy (FTIR). Hirshfeld surface maps were employed to capture the differences in the interactions present in the two forms. The thermal behaviors were characterized by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Moreover, the monohydrate and anhydrous phase can transform to each other through solid–solid transformation or solution-mediated phase transformation, and the critical values of the phase transformation were determined. Finally, the relative stability of the two forms under different thermodynamic conditions was discussed, especially the influence of temperature and water activity on the stability.
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spelling pubmed-90586252022-05-04 Monohydrate and anhydrate of nylon 5I monomer 1,5-pentanediamine–isophthalate Li, Zihan Xu, Mengjie Liu, Haodong Wen, Qingshi Fu, Jinqiu Zhuang, Wei Yang, Pengpeng Wu, Jinglan Ying, Hanjie RSC Adv Chemistry Nylon 5I is one of the new bio-based nylon materials. Its raw material 1,5-pentanediamine (PDA) is prepared by biological methods using biomass as the raw material. The high-performance polymer materials require the original high-quality monomers. 1,5-Pentanediamine–isophthalate (PDA–IPA) was taken as the direct monomer for the preparation of nylon 5I, and the crystallization was a valuable and essential approach to preparing the good-performance monomer salt. In this report, we found and obtained two crystal forms of PDA–IPA, monohydrate and an anhydrous form. Their crystal structures were determined and analyzed by single crystal X-ray diffraction (SCXRD), powder X-ray diffraction (PXRD), and Fourier transform infrared spectroscopy (FTIR). Hirshfeld surface maps were employed to capture the differences in the interactions present in the two forms. The thermal behaviors were characterized by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Moreover, the monohydrate and anhydrous phase can transform to each other through solid–solid transformation or solution-mediated phase transformation, and the critical values of the phase transformation were determined. Finally, the relative stability of the two forms under different thermodynamic conditions was discussed, especially the influence of temperature and water activity on the stability. The Royal Society of Chemistry 2020-12-17 /pmc/articles/PMC9058625/ /pubmed/35516270 http://dx.doi.org/10.1039/d0ra08767j Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Li, Zihan
Xu, Mengjie
Liu, Haodong
Wen, Qingshi
Fu, Jinqiu
Zhuang, Wei
Yang, Pengpeng
Wu, Jinglan
Ying, Hanjie
Monohydrate and anhydrate of nylon 5I monomer 1,5-pentanediamine–isophthalate
title Monohydrate and anhydrate of nylon 5I monomer 1,5-pentanediamine–isophthalate
title_full Monohydrate and anhydrate of nylon 5I monomer 1,5-pentanediamine–isophthalate
title_fullStr Monohydrate and anhydrate of nylon 5I monomer 1,5-pentanediamine–isophthalate
title_full_unstemmed Monohydrate and anhydrate of nylon 5I monomer 1,5-pentanediamine–isophthalate
title_short Monohydrate and anhydrate of nylon 5I monomer 1,5-pentanediamine–isophthalate
title_sort monohydrate and anhydrate of nylon 5i monomer 1,5-pentanediamine–isophthalate
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9058625/
https://www.ncbi.nlm.nih.gov/pubmed/35516270
http://dx.doi.org/10.1039/d0ra08767j
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