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Conformational structure of triblock copolymers by FT-Raman and FTIR spectroscopy
Alternative TitleJ. Colloid Interface Sci.
Guo, C; Liu, HZ; Wang, J; Chen, JY
1999-01-15
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
Volume209Issue:2Pages:368-373
AbstractFourier 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.; 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.
KeywordPeo-ppo-peo Triblock Copolymer Conformation Ft-raman Ftir
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
URL查看原文
Indexed BySCI
Language英语
WOS KeywordOXIDE)-B-POLY(ETHYLENE OXIDE) COPOLYMERS ; BLOCK-COPOLYMERS ; AQUEOUS-SOLUTIONS ; SURFACE-ACTIVITY ; POLY(ETHYLENE ; THERMODYNAMICS ; MICELLIZATION ; ASSOCIATION ; DYNAMICS ; SPECTRA
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000077831600010
Citation statistics
Cited Times:55[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5883
Collection研究所(批量导入)
AffiliationAcad Sinica, Inst Chem Met, Young Scientist Lab Separat Sci & Engn, Beijing 100080, Peoples R China
Recommended Citation
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.
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