Thermodynamic characterization of poly(2,2,3,3,3‐pentafluoropropyl methacrylate)

Papadopoulou, Stella K.; Karapanagiotis, Ioannis; Zuburtikudis, Ioannis; Panayiotou, Costas

doi:10.1002/polb.22053

Cited by 14 publications

(4 citation statements)

References 25 publications

(33 reference statements)

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“…This allows a value of the solubility parameter ( δ 2 ) for PF3MA equal to 17.2 to be calculated assuming a value of δ 2 for PMMA of 19.5 . 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.…”

Section: Resultssupporting

confidence: 77%

“…31 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. [32][33][34][35] In addition to that work, we have previously 36 used the Van Krevelen group contribution method to calculate a solubility parameter (d 2 ) for PF1MA of 17.1 (MPa) 0.5 , in good agreement with the value obtained by extrapolating the data of Papadopoulou et al 35 to room temperature. Using the same approach for the current system, we obtain a value of d 2 for PF3MA equal to 16.7, close to the experimental value of 17.2.…”

Section: Bulk Phase Structure Of Copolymerssupporting

confidence: 57%

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Control through monomer placement of surface properties and morphology of fluoromethacrylate copolymers

Chen

Blakey

Jack

et al. 2015

J. Polym. Sci., Part A: Polym. Chem.

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The arrangement of monomers and morphology of fluorinated copolymers of methyl methacrylate (MMA) were found to be important for controlling the surface energy of the materials when formed into thin films. Novel copolymers of MMA and 2,2,3,3,4,4, were prepared with different monomer placement, namely statistical and block arrangements of the monomer units. The surface energies decreased with increasing incorporation of F3MA, in a manner consistent with previous reports for similar copolymers; however, the surface energies of the block copolymers were consistently lower than the statistical copolymers. This was interpreted as arising from conformational restriction of presentation of the fluoromonomers to the surface in the statistical copolymers, and formation of phase-separated domains at the surface of the block copolymers. The morphology of the block copolymers was confirmed by small angle Xray scattering measurements, which allowed calculation of a solubility parameter for the fluorinated segments. The results have implications for the design of more environmentally acceptable materials with ultra-low surface energies. V C 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2015, 53, 2633-2641 KEYWORDS: block copolymers; fluoropolymers; low surface energy; phase separation; reversible addition fragmentation chain transfer; small angle X-ray scattering INTRODUCTION The tendency for a liquid to spread and wet a surface of a polymeric substrate is determined by the balance of forces of adhesion between the liquid and the substrate, and the forces of cohesion driving the liquid into a form with a minimum surface energy, that is, a sphere. Spreading continues until the adhesion forces are matched by the combined surface forces. As we know, the forces of adhesion are determined by the magnitude of the noncovalent or van der Waal's interactions in the system. For a polar liquid such as water these are dominated by the presence of permanent dipoles, and so spreading of water is facilitated by the presence of functionalities with similar polarity within the substrate. Such polar substrates have high surface energies, as a result of the disruption of these strong forces at the material-air interface. On the contrary, it has been known for many years that the incorporation of fluorinated segments into polymers imparts low surface energy, and thus water tends to dewet extensively on planar fluorinated surfaces. These properties have led to many

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Section: Resultssupporting

confidence: 77%

Section: Bulk Phase Structure Of Copolymerssupporting

confidence: 57%

Control through monomer placement of surface properties and morphology of fluoromethacrylate copolymers

Chen

Blakey

Jack

et al. 2015

J. Polym. Sci., Part A: Polym. Chem.

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“…Moreover, the Fourier transform infrared spectra of 124‐PHDFDMA, 416‐PTDFOMA, and 4760‐PPFPMA obtained by the spectrometer (Thermo Scientific Co., Nicolet is5) are shown in Figure S1 in the Supporting Information. In every spectra, peaks were found that could be assigned to CF 2 wagging, CF 2 asymmetric stretching, and CO stretching vibration modes.…”

Section: Methodsmentioning

confidence: 99%

Dispersion polymerization of methyl methacrylate with three types of comblike fluorinated stabilizers in supercritical carbon dioxide

Haruki

Kodama

Tachimori

et al. 2016

J of Applied Polymer Sci

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Dispersion polymerizations of methyl methacrylate in supercritical carbon dioxide were conducted with three types of comblike fluorinate polymer stabilizers: poly(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10‐heptadecafluorodecyl methacrylate) (PHDFDMA), poly(3,3,4,4,5,5,6,6,7,7,8,8,8‐tridecafluorooctyl methacrylate) (PTDFOMA), and poly(2,2,3,3,3‐pentafluoropropyl methacrylate) (PPFPMA). The effect of the polymerization pressure was not significant on the mean diameters of the poly(methyl methacrylate) (PMMA) particles from 20 to 40 MPa. However, the coefficients of variation of the particle diameters produced at 20 MPa ( 1/N−1false∑i=1N|di−d¯2/d¯, where trued¯ is the number‐basis mean particle diameter), where the heterogeneous phase was found before polymerization, were larger than those produced at 30 and 40 MPa, where the homogeneous phase was found. The mean size of the PMMA obtained with PTDFOMA and PPFPMA strongly depended on the stabilizer concentration compared with that obtained with PHDFDMA. Moreover, the mean size decreased as the carbon dioxide‐philic side chain length increased. As shown by the results of this study, the best stabilizer among the three types of stabilizers for producing PMMA particles was PHDFDMA. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43813.

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“…This parameter reflects the time used by the probes of known properties for passing through a chromatographic column packed with the material under investigation. The net retention volumes ( V N ) and the specific retention volumes ( V g 0 ), as a function of the retention time, can be obtained by eqs and . − When plotting the retention diagrams (ln V g 0 vs 1/ T ) using eq , the enthalpy of adsorption (Δ H a s ) can be calculated from the slope. , where F is the carrier gas flow rate, P i and P o are the inlet and outlet pressures, respectively, P w is the saturated vapor pressure of water at the ambient temperature, t r and t 0 are the retention times of the probe and methane (a noninteracting probe), respectively, T and T a are the column and room temperatures, respectively, and W s is the coated sample mass.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Determination of the Surface Thermodynamic Characteristics of Phthalate Plasticizers by Inverse Gas Chromatography

Wang

2020

J. Chem. Eng. Data

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The dispersive component of surface energy (γs d) and Lewis surface acid–base parameters (K a, K b) for phthalate plasticizers, including dimethyl phthalate, di-n-butyl phthalate, di-2-ethylhexyl phthalate, diisononyl phthalate, and diisodecyl phthalate, were determined by inverse gas chromatography (IGC) at infinite dilution. The IGC study was performed with an oven temperature varying between 313.15 and 343.15 K. Polar and nonpolar probes were used to quantify the solute–sorbent systems. Experimental data showed that the difference between the γs d values calculated by two methods (Schultz and Dorris and Gray) increases with increasing temperature. The acid–base parameters indicated that the surfaces of five examined phthalate plasticizers can be considered as amphoteric with a dominant basic character, and the K a and K b values ranged from 0.35 to 0.36 and 1.20 to 1.25, respectively. It was also found that the γs d value increased and the Lewis surface basicity (K b/K a) decreased with an increase of the alkyl chain length grafted onto the plasticizers. It is confirmed that IGC was useful for surface characterization and can be used to provide instructive thermodynamic information over a wide temperature range.

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Thermodynamic characterization of poly(2,2,3,3,3‐pentafluoropropyl methacrylate)

Cited by 14 publications

References 25 publications

Control through monomer placement of surface properties and morphology of fluoromethacrylate copolymers

Control through monomer placement of surface properties and morphology of fluoromethacrylate copolymers

Dispersion polymerization of methyl methacrylate with three types of comblike fluorinated stabilizers in supercritical carbon dioxide

Determination of the Surface Thermodynamic Characteristics of Phthalate Plasticizers by Inverse Gas Chromatography

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