Conformational structure of triblock copolymers by FT-Raman and FTIR spectroscopy

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	Conformational structure of triblock copolymers by FT-Raman and FTIR spectroscopy
	Guo, C; Liu, HZ; Wang, J; Chen, JY
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	1999-01-15
卷号	209 期号:2 页码:368-373
关键词	PEO-PPO-PEO triblock copolymer conformation FT-Raman FTIR
ISSN号	0021-9797
其他题名	J. Colloid Interface Sci.
中文摘要	Fourier transform Raman (FT-Raman) and Fourier transform infrared (FTIR) spectra of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymers as pure solids or liquids and in aqueous solutions have been examined. The qualitative features in Raman and FTIR spectra of these copolymers have been presented. The Raman and FTIR spectra of PEO-PPO-PEO triblock copolymers are very sensitive to the structural and conformational changes. It shows that the relative intensities of several peaks in Raman spectra are dependent on the PPO/PEO ratios and the conformation of the copolymers. From Raman and FTIR spectra, Pluronic F68 and F88 assume helical structures with a few trans conformers. Other block copolymers exhibit that the disordered structure increases with increasing PPO/PEO ratio. Comparison of Raman spectra of PEO-PPO-PEO triblock copolymers as pure solids or liquids with those in aqueous solutions has been presented. (C) 1999 academic Press.
英文摘要	Fourier transform Raman (FT-Raman) and Fourier transform infrared (FTIR) spectra of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymers as pure solids or liquids and in aqueous solutions have been examined. The qualitative features in Raman and FTIR spectra of these copolymers have been presented. The Raman and FTIR spectra of PEO-PPO-PEO triblock copolymers are very sensitive to the structural and conformational changes. It shows that the relative intensities of several peaks in Raman spectra are dependent on the PPO/PEO ratios and the conformation of the copolymers. From Raman and FTIR spectra, Pluronic F68 and F88 assume helical structures with a few trans conformers. Other block copolymers exhibit that the disordered structure increases with increasing PPO/PEO ratio. Comparison of Raman spectra of PEO-PPO-PEO triblock copolymers as pure solids or liquids with those in aqueous solutions has been presented. (C) 1999 academic Press.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Physical
研究领域[WOS]	Chemistry
关键词[WOS]	OXIDE)-B-POLY(ETHYLENE OXIDE) COPOLYMERS ; BLOCK-COPOLYMERS ; AQUEOUS-SOLUTIONS ; SURFACE-ACTIVITY ; POLY(ETHYLENE ; THERMODYNAMICS ; MICELLIZATION ; ASSOCIATION ; DYNAMICS ; SPECTRA
收录类别	SCI
原文出处	://WOS:000077831600010
语种	英语
WOS记录号	WOS:000077831600010
公开日期	2013-11-15
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/5883]
专题	过程工程研究所_研究所（批量导入）
作者单位	Acad Sinica, Inst Chem Met, Young Scientist Lab Separat Sci & Engn, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Guo, C,Liu, HZ,Wang, J,et al. Conformational structure of triblock copolymers by FT-Raman and FTIR spectroscopy[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,1999,209(2):368-373.
APA	Guo, C,Liu, HZ,Wang, J,&Chen, JY.(1999).Conformational structure of triblock copolymers by FT-Raman and FTIR spectroscopy.JOURNAL OF COLLOID AND INTERFACE SCIENCE,209(2),368-373.
MLA	Guo, C,et al."Conformational structure of triblock copolymers by FT-Raman and FTIR spectroscopy".JOURNAL OF COLLOID AND INTERFACE SCIENCE 209.2(1999):368-373.