Surface Property of Polymer Films with Fluoroalkyl Side Chains

Katano, Yoshitaka; Tomono, Hidenori; Nakajima, Tasuku

doi:10.1021/ma00086a060

Cited by 149 publications

(143 citation statements)

References 3 publications

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“…Table 1 shows that the contact angles of water and paraffin oil were nearly independent of FMA content. The contact angle of water on the surface of PBMA-ec-FMA was approximately 120º when the average polymerization degree of the PFMA blocks was about 1, which was the same as that observed for poly(2-perfluorooctylethyl methacrylate) homopolymer (PFMA) (120º) [9,24] . A similar trend was observed for the contact angles of paraffin oil on the surface of the copolymers.…”

Section: Surface Properties Of Fma End-capped Pbma 164 and Pbma 101 Fsupporting

confidence: 65%

Effect of block length on the self-assembly of end-capping perfluoroalkyl moieties on the polymer surface

Yang

Zhao

Zhou

et al. 2009

Sci. China Ser. B-Chem.

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Most research on copolymers with fluorinated monomers has focused on the relationship between fluorinated monomer content and the corresponding surface structure. However, the influence of the non-fluorinated block on the surface structure of the copolymer film is unknown. Various molecular weight poly(butyl methacrylates) (PBMA) end-capped with 2-perfluorooctylethyl methacrylate (FMA) units (PBMA-ec-FMA) have been synthesized by atom transfer radical polymerization (ATRP). The effect of the PBMA block length on the surface structure and properties of the polymers both in the solid state and in solution was investigated using various techniques. X-ray photoelectron spectroscopy (XPS), sum frequency generation (SFG) vibrational spectroscopy and X-ray diffraction (XRD) analyses indicated that longer PBMA blocks enhanced both the enrichment of the fluorinated moieties and the order of the packing orientation of the perfluoroalkyl side chains on the surface. This enhancement was attributed mainly to the molecular aggregate structure of the end-capped polymers with long PBMA blocks in the solution and to the interfacial structure at the air/liquid interface, which favors the -(CF 2 ) 7 CF 3 moieties self-assembling on the polymer surface during film formation. This observation suggests that the polyacrylate block structure in fluorinated diblock copolymers, in addition to the fluorinated monomer content, plays an important role in structure formation on the solid surface.self-assembly, fluorinated end-capped polymer, surface structure, PBMA block length

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Section: Surface Properties Of Fma End-capped Pbma 164 and Pbma 101 Fsupporting

confidence: 65%

Effect of block length on the self-assembly of end-capping perfluoroalkyl moieties on the polymer surface

Yang

Zhao

Zhou

et al. 2009

Sci. China Ser. B-Chem.

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“…1 shows that regardless of solvent, the contact angles of water and paraffin oil on the surface of the PMMA 857 -ec-FMA 3.3 films were about 120 • and 84 • , respectively, which were the same as those of poly(2-perfluorooctylethyl methacrylate) homopolymer (120 • ) [11,18]. However, a great difference in the surface stability was found when the films were prepared using different solvents.…”

Section: Effect Of Film-forming Solvents On Surface Properties Of Pmmmentioning

confidence: 91%

Solvent effect on the film formation and the stability of the surface properties of poly(methyl methacrylate) end-capped with fluorinated units

Wang

Xue

et al. 2008

Journal of Colloid and Interface Science

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“…19 They explained the decrease of screening effect of polar groups due to tilting of R f groups causes high wettability. Our result of Figure 7 supports the view of Katano et al…”

Section: Temperature Dependency On Surface Propertiesmentioning

confidence: 99%

Surface properties of perfluoroalkylethyl acrylate/n-alkyl acrylate copolymers

Morita

Ogisu

Kubo

1999

J. Appl. Polym. Sci.

129

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Wetting behavior of perfluoroalkylethyl acrylate (FA)/n-alkyl acrylate (AA) copolymers with the various length of side chains of the AAs is discussed from a standpoint of surface molecular mobility. The copolymerization reactivity ratio indicates that these polymers are random copolymers. The surface properties were studied by measuring dynamic contact angle, static contact angle and freeze-dried X-ray photoelectron spectroscopy, and the bulk properties by wide-angle X-ray diffraction and differential scanning calorimetry. The advancing contact angles for water were independent of side-chain length of AAs and were almost constant at 120°. We have attributed this phenomenon to the orientation of perfluoroalkyl groups (R f groups, C x F 2xϩ1 ) in air, which is independent of side-chain length of AAs. On the contrary, the receding contact angles showed small values of about 45°when n numbers below 8 and increased when n numbers above 12. This can be explained as follows. High wettability during the receding process at the n numbers below 8 results from regression of R f groups at the water-solid interface caused by minimization of the interface free energy. The low wettability during the receding process at the n numbers above 12 shows that R f groups cannot regress due to its crystallization. This mechanism is also supported by other measurements.

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Surface Property of Polymer Films with Fluoroalkyl Side Chains

Cited by 149 publications

References 3 publications

Effect of block length on the self-assembly of end-capping perfluoroalkyl moieties on the polymer surface

Effect of block length on the self-assembly of end-capping perfluoroalkyl moieties on the polymer surface

Solvent effect on the film formation and the stability of the surface properties of poly(methyl methacrylate) end-capped with fluorinated units

Surface properties of perfluoroalkylethyl acrylate/n-alkyl acrylate copolymers

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