Investigation on the interactions between polyurethane and metal chloride
Liu, Xinhai1,3; Zhao, Ying1; Liu, Zhi2; Wang, Dujin1; Wu, Jinguang2; Xu, Duanfu1
AbstractThe aim of this article is to investigate the effect of interactions between metal ions and polyurethanes(PU) on the properties of polyurethanes. In this report, interaction between metal ions(Y(3+), La(3+), Ca(2+), Cu(2+), and Li(+)) and polyurethanes was investigated by FT-IR spectroscopy, theological method and TEM technique. Compared with the pure PU, obvious variation of carbonyl group vibration can be observed from the IR spectra of PU-YCl(3), PU-CUCl(2) and PU-LiCl composites, which indicated that there were interactions between these metal ions and the polar carbonyl groups of PU. Although the IR spectra of PU-CaCl(2) systems showed little changes, the difference of theological behavior between Pu-CaCl(2)-DMF solution system and pure PILI solution implied that the aggregation state of PU changed in the presence of Ca(2+) ions, which provided the evidence that interactions between metal ions and the molecular chains of PU occurred in the solution, and similar behavior can be observed in PU-YCl(3), PU-CuCl(2) and PU-LiCl solution systems, respectively. TEM of PU-LaCl(3) results revealed that PU possesses the ability to coordinate with metal ions, resulting in the formation of the ion clusters and phase separation in the PU-metal ion systems. In summary, there are interactions between metal ions and the carbonyl groups of PU in solid state and in DMF solution, which may provide a new way to modify the properties of polyurethanes. (C) 2008 Elsevier B.V. All rights reserved.
KeywordPolyurethane Metal Ion Interaction Phase Separation
Indexed BySCI
WOS IDWOS:000261711400033
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorZhao, Ying
Affiliation1.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, State Key Lab Polymer Phys & Chem,Beijing Natl La, Beijing 100080, Peoples R China
2.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Liu, Xinhai,Zhao, Ying,Liu, Zhi,et al. Investigation on the interactions between polyurethane and metal chloride[J]. JOURNAL OF MOLECULAR STRUCTURE,2008,892(1-3):200-204.
APA Liu, Xinhai,Zhao, Ying,Liu, Zhi,Wang, Dujin,Wu, Jinguang,&Xu, Duanfu.(2008).Investigation on the interactions between polyurethane and metal chloride.JOURNAL OF MOLECULAR STRUCTURE,892(1-3),200-204.
MLA Liu, Xinhai,et al."Investigation on the interactions between polyurethane and metal chloride".JOURNAL OF MOLECULAR STRUCTURE 892.1-3(2008):200-204.
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