The interaction between La and polyurethane system
Liu, Z; Liu, XH; Cao, CC; Zun, SY; Weng, SF; Xu, DF; Wu, JG
AbstractA series of polyether polyurethane (PU)-LaCl3 composites with different lanthanum contents were prepared. DSC results indicate that LaCl3 promotes phase transition behavior of the LaCl3/PU Composites, which causes the endothermic peak at 11.58degreesC to disappear. FTIR spectroscopy demonstrates that significant variation can be observed. The peak at 1633 cm(-1) attributed to carbonyl vibration and the peak at 3 311 cm(-1) attributed to N-H stretching band moves to 1647 cm(-1) and 3 355 cm(-1), respectively, when LaCl3 is introduced into the PU system. A new band (-200 cm(-1)) assigned to the La-O band was observed, and the far IR result provided a direct evidence of the coordination between La3+ ion and Cdouble bondO group of PU system.
KeywordModified Polyurethane Lanthanide Frir Dsc
Indexed BySCI
WOS IDWOS:000221744400006
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Document Type期刊论文
Corresponding AuthorLiu, Z
Affiliation1.Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol & Engn, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
3.Beijing Union Univ, Cool Arts & Sci, Beijing 100038, Peoples R China
Recommended Citation
GB/T 7714
Liu, Z,Liu, XH,Cao, CC,et al. The interaction between La and polyurethane system[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2004,24(5):536-538.
APA Liu, Z.,Liu, XH.,Cao, CC.,Zun, SY.,Weng, SF.,...&Wu, JG.(2004).The interaction between La and polyurethane system.SPECTROSCOPY AND SPECTRAL ANALYSIS,24(5),536-538.
MLA Liu, Z,et al."The interaction between La and polyurethane system".SPECTROSCOPY AND SPECTRAL ANALYSIS 24.5(2004):536-538.
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