2012
DOI: 10.1021/ma3019188
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Effect of Solvent Quality on the Solution Properties of Assemblies of Partially Fluorinated Amphiphilic Diblock Copolymers

Abstract: The effect of solvent on the formation of assemblies of partially fluorinated block copolymers in solution has been examined. Two classes of materials based respectively on 2,2,2-trifluoroethyl acrylate (TFEA) and 2,2,2-trifluoroethyl methacrylate (TFEMA) were dissolved in organic solvents, and the properties on successive addition of water were studied using NMR spectroscopy, NMR imaging, AFM, and TEM. The relatively high glass transition temperature of the methacrylate blocks resulted in the formation of kin… Show more

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Cited by 30 publications
(101 citation statements)
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“…Very few reports exist in the literature of the solubility parameters of fluorinated methacrylate polymers, apart from several studies using inverse gas chromatography by Papadopoulou and colleagues . In addition to that work, we have previously used the Van Krevelen group contribution method to calculate a solubility parameter ( δ 2 ) for PF1MA of 17.1 (MPa) 0.5 , in good agreement with the value obtained by extrapolating the data of Papadopoulou et al to room temperature. Using the same approach for the current system, we obtain a value of δ 2 for PF3MA equal to 16.7, close to the experimental value of 17.2.…”
Section: Resultssupporting
confidence: 77%
“…Very few reports exist in the literature of the solubility parameters of fluorinated methacrylate polymers, apart from several studies using inverse gas chromatography by Papadopoulou and colleagues . In addition to that work, we have previously used the Van Krevelen group contribution method to calculate a solubility parameter ( δ 2 ) for PF1MA of 17.1 (MPa) 0.5 , in good agreement with the value obtained by extrapolating the data of Papadopoulou et al to room temperature. Using the same approach for the current system, we obtain a value of δ 2 for PF3MA equal to 16.7, close to the experimental value of 17.2.…”
Section: Resultssupporting
confidence: 77%
“…Similar conclusions were reached by Peng et al in their study of the behaviour of linear block copolymers. 23,25 For CCS-2, the T 2 was much lower than that of CCS-1, but it showed a similar behaviour 15 with changes in pH. As before, the T 2 above pH 7 could not be measured, demonstrating the reduced mobility of the 19 F nuclei.…”
mentioning
confidence: 56%
“…Very recently, the development of polymeric agents for 19 F MRI has been an active research field. Owing to abundant architectures and functionalities present in polymeric systems, a wide range of partly fluorinated polymers have been developed as contrast agents (CAs) for 19 F MRI, including linear polymers, star polymers, hyperbranched polymers, and dendrimers . These studies have emphasized that successful 19 F MRI CAs should possess high fluorine content as well as highly mobile 19 F nuclei.…”
Section: Introductionmentioning
confidence: 99%