The relationship between structures and dynamic surface properties of perfluoroalkyl containing polymers

Maekawa, Takashige; Kamata, Satoshi; Matsuo, Masashi

doi:10.1016/s0022-1139(00)83594-0

Cited by 25 publications

(21 citation statements)

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“…4 For example, Maekawa et al reported that the surface structure of fluoroalkyl acrylate homopolymer with short side chains changes when it is contacted with water. 5 They tried correlating polymer crystallization with dynamic contact angle with regard to the side chain R f group (-C n F 2nϩ1 ), and concluded that the surface reorientation in contact with water takes place when n numbers of C n F 2 nϩ1 are not more than 8, of which polymers are not crystallized.…”

Section: Introductionmentioning

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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Section: Introductionmentioning

confidence: 99%

Surface properties of perfluoroalkylethyl acrylate/n-alkyl acrylate copolymers

Morita

Ogisu

Kubo

1999

J. Appl. Polym. Sci.

129

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“…formation of a highly ordered layer of fluoroalkyl groups at the surface of the polymer [23][24][25]. On the basis of these studies, it is interesting to use longer fluoroalkyl side chains instead of 3,3,3-trifluoropropyl groups of CF 3 CH 2 CH 2 -FLS.…”

Section: Fluorosilicone Polymersmentioning

confidence: 99%

Fluorosilicones and Other Fluoropolymers

Mistri

Ghosh

Banerjee

2015

Handbook of Specialty Fluorinated Polymers

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“…Among chemical treatments, fluoro-resin has been widely used as a surface coating material with its water repellent and oil repellent properties due to the low surface tension and low friction coefficient [2][3][4]. So far, several coating materials such as a series of perfluoroalkyl acrylate polymers [5][6][7][8][9][10][11][12][13][14][15][16][17][18] and fluorine modified polyurethane surface modifier [19] have been developed. Although these polymers have low surface tension as well as water-and oilrepellent properties, they showed poor solubility to the general hydrocarbon solvents.…”

Section: Introductionmentioning

confidence: 99%