Investigation on the interactions between polyurethane and metal   chloride

doi:10.1016/j.molstruc.2008.05.025

CORC > 北京大学 > 化学与分子工程学院

	Investigation on the interactions between polyurethane and metal chloride
	Liu, Xinhai ; Zhao, Ying ; Liu, Zhi ; Wang, Dujin ; Wu, Jinguang ; Xu, Duanfu
刊名	分子结构杂志
	2008
关键词	Polyurethane Metal ion Interaction Phase separation INFRARED TEMPERATURE POLYAMIDE POLYMERS SYSTEM FTIR IONS
DOI	10.1016/j.molstruc.2008.05.025
英文摘要	The 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.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000261711400033&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; SCI(E); EI; 7; ARTICLE; 1-3; 200-204; 892
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/247682]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Liu, Xinhai,Zhao, Ying,Liu, Zhi,et al. Investigation on the interactions between polyurethane and metal chloride[J]. 分子结构杂志,2008.
APA	Liu, Xinhai,Zhao, Ying,Liu, Zhi,Wang, Dujin,Wu, Jinguang,&Xu, Duanfu.(2008).Investigation on the interactions between polyurethane and metal chloride.分子结构杂志.
MLA	Liu, Xinhai,et al."Investigation on the interactions between polyurethane and metal chloride".分子结构杂志 (2008).