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Effects of Ethylene Oxide Spacer Length on Solution Properties of Water‐Soluble Fluorocarbon‐Containing Hydrophobically Associating Poly (Acrylic Acid‐co‐Rf‐PEG Macromonomer)
Author(s) -
LiBin Du,
DongQing Zhuang,
ShouPing Liu,
YunXiang Zhang
Publication year - 2003
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20030210624
Subject(s) - macromonomer , fluorocarbon , chemistry , polymer chemistry , acrylic acid , ethylene oxide , ethylene glycol , copolymer , peg ratio , aqueous solution , end group , organic chemistry , polymer , finance , economics
Poly (acrylic acid)s (PAAs) modified with a series of fluorocarbon group (R f ) end‐capped Poly(ethylene glycol) (PEG) macromonomers (number of ethylene oxide unit: 1, 9, 23, 45) and corresponding copolymers without fluorocarbon end groups were synthesized. It was found that the effect of the hydrophobic association of fluorocarbon groups on the solution viscosity prevailed over that of the hydrogen bond between grafted PEG and the backbone. Rheological measurement on the aqueous solutions of these poly (acrylic add‐co‐R r PEG macromonomer)s demonstrated that the best thickening performance was shown when the number of ethylene oxide unit (EO number) was 23.