Temperature dependence of molecular orientation on the surfaces of semifluorinated polymer thin films

Langmuir

Volumn 16, Issue 4, 2000, Pages 1993-1997

  Genzer, Jan ^a,k   Sivaniah, Easan ^a   Kramer, Edward J ^a   Wang, Jianguo ^b,f   Körner, Hilmar ^b,g   Char, Kookheon ^b,h   Ober, Christopher K ^b   DeKoven, Benjamin M ^c,i   Bubeck, Robert A ^c,j   Fischer, Daniel A ^d   Sambasivan, Sharadha ^d,e  

^a University of California   (United States)

^b Cornell University   (United States)

^c DOW CHEMICAL COMPANY   (United States)

^d NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY   (United States)

^e BROOKHAVEN NATIONAL LABORATORY   (United States)

^f Corning Inc ^*  (United States)

^g UNIVERSITY OF LEOBEN   (Austria)

^h Seoul National University   (South Korea)

ⁱ Intevac Inc   (United States)

^j MICHIGAN MOLECULAR INSTITUTE   (United States)

^k North Carolina State University   (United States)

more..

Author keywords

[No Author keywords available]

Indexed keywords

CHEMICAL MODIFICATION; MOLECULAR ORIENTATION; PHASE TRANSITIONS; SENSITIVITY ANALYSIS; SURFACE PROPERTIES; TEMPERATURE; THIN FILMS; X RAY SPECTROSCOPY;

SEMIFLUORINATED POLYMER THIN FILMS; SURFACE ORIENTATION; TEMPERATURE DEPENDENCE;

FLUORINE CONTAINING POLYMERS;

EID: 0033876656     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la9910327     Document Type: Article

References (33)

1. Rabolt, J. T.; Russell, T. P.; Tweig, R. J. Macromolecules 1984, 17, 2786. Schneider, J.; Erdelen, C.; Ringsdorf, H.; Rabolt, J. T. Macromolecules 1989, 22, 3475. Katano, Y.; Tomono, H.; Nakajima, T. Macromolecules 1994, 27, 2342.
2. Rabolt, J. T.; Russell, T. P.; Tweig, R. J. Macromolecules 1984, 17, 2786. Schneider, J.; Erdelen, C.; Ringsdorf, H.; Rabolt, J. T. Macromolecules 1989, 22, 3475. Katano, Y.; Tomono, H.; Nakajima, T. Macromolecules 1994, 27, 2342.
3. Rabolt, J. T.; Russell, T. P.; Tweig, R. J. Macromolecules 1984, 17, 2786. Schneider, J.; Erdelen, C.; Ringsdorf, H.; Rabolt, J. T. Macromolecules 1989, 22, 3475. Katano, Y.; Tomono, H.; Nakajima, T. Macromolecules 1994, 27, 2342.
4. Schmidt, D. L.; Coburn, C. E.; DeKoven, B. M.; Potter, G. E.; Meyers, G. F.; Fischer, D. A. Nature 1994, 368, 39.
5. Pittman, A. G. In Fluoropolymers; Wall, L. A., Ed; Wiley: New York, 1972; Vol. 25, p 4319.
6. Ulman, A. An Introduction to Ultrathin Organic Films: From Langmuir-Blodgett to Self-Assembly; Academic Press: New York, 1991.
7. Ocko, B. M.; Braslau, A.; Pershan, P. S.; Als-Nielsen, J.; Deutsch, M. Rev. Lett. Phys. 1986, 57, 94.
8. Jerome, B. Rep. Prog. Phys. 1991, 54, 391.
9. Kellogg, G. J.; Pershan, P. S.; Kawamoto, E. H.; Foster, W. F.; Deutsch, M.; Ocko, B. M. Phys. Rev. E 1995, 51, 4709.
10. Lucht, R.; Bahr, Ch. Phys. Rev. Lett. 1997, 78, 3487. Lucht, R.; Bahr, Ch. Phys. Rev. Lett. 1998, 80, 3783.
11. Lucht, R.; Bahr, Ch. Phys. Rev. Lett. 1997, 78, 3487. Lucht, R.; Bahr, Ch. Phys. Rev. Lett. 1998, 80, 3783.
12. Lucht, R.; Bahr, Ch.; Heppke, G. J. J. Phys. Chem. 1998, 102, 6861.
13. Mensinger, H.; Stamm, M.; Boeffel, C. J. Chem. Phys. 1992, 96, 3183.
14. Elben, H.; Strobl, G. Macromolecules 1993, 26, 1013.
15. Wong, G. C. L.; Commandeur, J.; Fischer, H.; de Jeu, W. H. Phys. Rev. Lett. 1996, 77, 5221.
16. Kenn, G.; Stamm, M.; Poths, H.; Rucker, M.; Rabe, J. P. Physica B 1996, 221, 174.
17. Jerome, B.; Commandeur, J.; de Jeu, W. H. Liquid Crystals 1997, 22, 685.
18. Lecommandoux, S.; Hardouin, F.; Dianoux, A. J. Europhys. J. B 1998, 5, 79.
19. Amundsen, K. R.; Srinivasarao, M. Phys. Rev. E 1999, 58, R1211.
20. Stöhr, J. NEXAFS Spectroscopy; Springer-Verlag: Berlin, 1992.
21. Factor, B. J.; Russell, T. P.; Toney, M. F. Macromolecules 1993, 26, 2847.
22. Hayes, N. W.; Beamson, G.; Clark, D. T.; Law, D. S. L.; Raval, R. Surf. Int. Sci. Anal. 1996, 24, 723.
23. Genzer, J.; Sivaniah, E.; Kramer, E. J.; Wang, J.; Körner, H.; Xiang, M.; Yang, S.; Ober, C. K.; Char, K.; Chaudhury, M. K.; DeKoven, B. M.; Bubeck, R. A.; Fischer, D. A.; Sambasivan, S. Mater. Res. Soc. Symp. Proc. 1998, 524, 365.
24. Genzer, J.; Sivaniah, E.; Kramer, E. J.; Wang, J.; Körner, H.; Xiang, M.; Char, K.; Ober, C. K.; DeKoven, B. M.; Bubeck, R. A.; Chaudhury, M. K.; Sambasivan, S.; Fischer, D. A. (Macromoleculues submitted for publication).
25. Wang, J.; Mao, G.; Ober, C. K.; Kramer, E. J. Macromolecules 1997, 30, 1906.
26. Sivaniah, E.; Genzer, J.; Kramer, E. J.; Magonov, S.; Wang, J.; Ober C. K. Manuscript in preparation.
27. The tilt angle determined from NEXAFS represents an average value. There is no straightforward way to discriminate between the case of all chains homogeneously tilted by the same angle and the case of a disordered system with a broad distribution of tilt angles. Moreover, due to the nature of the polarization dependencies of the NEXAFS signal intensities, one cannot distinguish between a completely disoriented sample and a sample whose chains are all tilted by 54.7°, the so-called magic angle (see ref 17).
28. Genzer, J.; Sivaniah, E.; Kramer, E. J.; Wang, J.; Körner, H.; Ober, C. K.; Char, K.; DeKoven, B. M.; Bubeck, R. A.; Fischer, D. A. Submitted for publication in Macromolecules.
29. The average surface tilt of the SF-LC mesogens was independent of whether the SFP was a diblock copolymer or a homopolymer. Nor it did not depend on whether the surface topology of the SF-diblock was smooth or rough due to the formation of islands or holes.
30. Had the DSC data been collected at lower heating rates, one might expect lower transition temperatures. The NEXAFS data are highly repeatable and were collected over heating and cooling regimes.
31. Jerome, B.; Commandeur, J.; de Jeu, W. H. Liquid Crystals 1997, 22, 685.
32. Lobko, T. A.; Ostrovskii, B. I.; Pavluchenko, A. I.; Sulianov, S. N. Liquid Crystals 1993, 15, 361.
33. Mach, P.; Huang, C. C.; Strobe, T.; Wedell, E. D.; Nguyen, T.; de Jeu, W. H.; Guittard, F.; Naciri, J.; Shashidhar, R.; Clark, N.; Jiang, I. M.; Kao, F. J.; Liu, H.; Nohira, H. Langmuir 1998, 14, 4330.