TERMINAL ATTACHMENT OF PERFLUORINATED POLYMERS TO SOLID-SURFACES

被引:47
作者
RUHE, J [1 ]
BLACKMAN, G [1 ]
NOVOTNY, VJ [1 ]
CLARKE, T [1 ]
STREET, GB [1 ]
KUAN, S [1 ]
机构
[1] ADSTAR,SAN JOSE,CA 95124
关键词
D O I
10.1002/app.1994.070530611
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Physisorption and chemisorption of perfluoropolyethers on solid surfaces is investigated using infrared spectroscopy, microcalorimetry, ellipsometry, X-ray photoelectron spectroscopy, and atomic force microscopy. Physisorbed polymers show shifts of vibrational modes to lower frequencies in a few nanometers thick films, indicating interactions with the solid surfaces. Hydroxyl-terminated polymers are thermally attached to solid surfaces, and their thicknesses increase to saturated values with increasing heating time. The thermally attached thin polymer film consists of strongly physisorbed material as well as chemisorbed material. Strongly physisorbed polymer is slowly displaced from the surface by polar, low-molecular-weight compounds such as water or alcohols. This is to be expected on the basis of microcalorimetric results, which yield higher heats of immersion with water than with reactive perfluoropolyethers. Atomic force microscopy experiments show that the mobility of the polymer remaining on the surface decreases substantially as the amount of the physisorbed material decreases. (C) 1994 John Wiley & Sons, Inc.
引用
收藏
页码:825 / 836
页数:12
相关论文
共 30 条
[11]   POLYREACTIONS ON PIGMENT SURFACES .7. REACTIONS OF POLYMERS WITH CHLOROSILANE END GROUPS ON SILICON DIOXIDE SURFACES [J].
KRENKLER, KP ;
LAIBLE, R ;
HAMANN, K .
ANGEWANDTE MAKROMOLEKULARE CHEMIE, 1976, 53 (JUL) :101-123
[12]   MODIFIED SILICA PRECIPITATED IN THE MEDIUM OF ORGANIC-SOLVENTS - AN ACTIVE RUBBER FILLER [J].
KRYSZTAFKIEWICZ, A .
COLLOID AND POLYMER SCIENCE, 1989, 267 (05) :399-408
[13]   ATOMIC FORCE MICROSCOPY OF POLYMERIC LIQUID-FILMS [J].
MATE, CM ;
LORENZ, MR ;
NOVOTNY, VJ .
JOURNAL OF CHEMICAL PHYSICS, 1989, 90 (12) :7550-7555
[14]   MOLECULAR-CONFORMATION AND DISJOINING PRESSURE OF POLYMERIC LIQUID-FILMS [J].
MATE, CM ;
NOVOTNY, VJ .
JOURNAL OF CHEMICAL PHYSICS, 1991, 94 (12) :8420-8427
[15]  
MIYAMOTO T, 1988, TRIBOLOGY MECHANICS, V5, P55
[16]   CONTROLLING THE MICROSTRUCTURE OF MONOMOLECULAR LAYERS [J].
MOHWALD, H .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1988, 27 (05) :728-734
[17]   TRIBOLOGY OF LANGMUIR-BLODGETT LAYERS [J].
NOVOTNY, V ;
SWALEN, JD ;
RABE, JP .
LANGMUIR, 1989, 5 (02) :485-489
[18]   LIQUID POLYMER CONFORMATION ON SOLID-SURFACES [J].
NOVOTNY, VJ ;
HUSSLA, I ;
TURLET, JM ;
PHILPOTT, MR .
JOURNAL OF CHEMICAL PHYSICS, 1989, 90 (10) :5861-5868
[19]   MIGRATION OF LIQUID POLYMERS ON SOLID-SURFACES [J].
NOVOTNY, VJ .
JOURNAL OF CHEMICAL PHYSICS, 1990, 92 (05) :3189-3196
[20]  
ORWOOL R, 1989, POLYM HDB