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A Fourier transform infrared study of the phase transition in aqueous solutions of ethylene oxide-propylene oxide triblock copolymer
Alternative TitleColloid Polym. Sci.
Guo, C; Liu, HZ; Chen, JY
1999-04-01
Source PublicationCOLLOID AND POLYMER SCIENCE
ISSN0303-402X
Volume277Issue:4Pages:376-381
AbstractThe phase transition between unimer and micellar phases of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymer Pluronic P105 in aqueous solution has been investigated as a function of temperature using Fourier transform infrared spectroscopy. The transition of 8 wt% Pluronic P105 in aqueous solution was found to occur at 25 degrees C. As temperature increases, PO blocks appear to be stretched conformers with strong interchain interaction, and the formation of a hydrophobic core in the micellar phase. The EO chains are found to change to a more disordered structure with low-chain packing density from the unimer phase to the micellar phase, Both the EO and PO blocks exhibit dehydration during the phase transition.; The phase transition between unimer and micellar phases of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymer Pluronic P105 in aqueous solution has been investigated as a function of temperature using Fourier transform infrared spectroscopy. The transition of 8 wt% Pluronic P105 in aqueous solution was found to occur at 25 degrees C. As temperature increases, PO blocks appear to be stretched conformers with strong interchain interaction, and the formation of a hydrophobic core in the micellar phase. The EO chains are found to change to a more disordered structure with low-chain packing density from the unimer phase to the micellar phase, Both the EO and PO blocks exhibit dehydration during the phase transition.
KeywordPoly(Ethylene Oxide) Poly(Propylene Oxide) Poly(Ethylene Oxide) Spectroscopy Triblock Copolymer Micelle Fourier Transform Infrared
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
URL查看原文
Indexed BySCI
Language英语
WOS KeywordBLOCK-COPOLYMERS ; BEHAVIOR ; ASSOCIATION ; MEMBRANES ; THERMODYNAMICS ; MICELLIZATION ; SPECTROSCOPY ; SURFACTANTS ; SCATTERING ; DYNAMICS
WOS Research AreaChemistry ; Polymer Science
WOS SubjectChemistry, Physical ; Polymer Science
WOS IDWOS:000079901400011
Citation statistics
Cited Times:68[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5947
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Chem Met, Young Scientist Lab Separat Sci & Engn, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Guo, C,Liu, HZ,Chen, JY. A Fourier transform infrared study of the phase transition in aqueous solutions of ethylene oxide-propylene oxide triblock copolymer[J]. COLLOID AND POLYMER SCIENCE,1999,277(4):376-381.
APA Guo, C,Liu, HZ,&Chen, JY.(1999).A Fourier transform infrared study of the phase transition in aqueous solutions of ethylene oxide-propylene oxide triblock copolymer.COLLOID AND POLYMER SCIENCE,277(4),376-381.
MLA Guo, C,et al."A Fourier transform infrared study of the phase transition in aqueous solutions of ethylene oxide-propylene oxide triblock copolymer".COLLOID AND POLYMER SCIENCE 277.4(1999):376-381.
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