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Volumn 40, Issue 10, 2007, Pages 3790-3796

Orientationally controlled nanoporous cylindrical domains in polystyrene-b-poly(ferrocenylethylmethylsilane) block copolymer films

Author keywords

[No Author keywords available]

Indexed keywords

CYLINDRICAL DOMAINS; EVAPORATION ANNEALING; MICRODOMAINS; NANOPOROUS CYLINDRICAL DOMAINS;

EID: 34249655581     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma062073u     Document Type: Article
Times cited : (36)

References (64)
  • 10
    • 1542285047 scopus 로고    scopus 로고
    • We have preliminarily screened several solvents (chloroform, methylene chloride, tetrahydrofuran, benzene, chlorobenzene, and toluene) for this annealing technique. In terms of ordering our block copolymer thin films over large areas, toluene was the most successful and the only solvent capable of generating the nanoporous cylindrical morphology. For earlier work on this technique, please refer to: Kim, S. H, Misner, M. J, Xu, T, Kimura, M, Russell, T. P. Adv. Mater. 2004, 16, 226-231
    • We have preliminarily screened several solvents (chloroform, methylene chloride, tetrahydrofuran, benzene, chlorobenzene, and toluene) for this annealing technique. In terms of ordering our block copolymer thin films over large areas, toluene was the most successful and the only solvent capable of generating the nanoporous cylindrical morphology. For earlier work on this technique, please refer to: Kim, S. H.; Misner, M. J.; Xu, T.; Kimura, M.; Russell, T. P. Adv. Mater. 2004, 16, 226-231.
  • 16
    • 0035941073 scopus 로고    scopus 로고
    • Manners, I. Science 2001, 294, 1664-1666.
    • (2001) Science , vol.294 , pp. 1664-1666
    • Manners, I.1
  • 34
    • 3142516347 scopus 로고    scopus 로고
    • Hinderung, C.; Keles, Y.; Stöckli, T.; Knapp, H. F.; de los Arcos, T.; Oelhafen, P.; Korczagin, I.; Hempenius, M. A.; Vancso, G. J.; Pugin, R.; Heinzelmann, H. Adv. Mater. 2004, 16, 876-879.
    • Hinderung, C.; Keles, Y.; Stöckli, T.; Knapp, H. F.; de los Arcos, T.; Oelhafen, P.; Korczagin, I.; Hempenius, M. A.; Vancso, G. J.; Pugin, R.; Heinzelmann, H. Adv. Mater. 2004, 16, 876-879.
  • 57
    • 0037451513 scopus 로고    scopus 로고
    • PFEMS. Arsenault, A. C.; Míguez, H.; Kitaev, V.; Ozin, G. A.; Manners, I. Adv. Mater. 2003, 25, 503-507.
    • PFEMS. Arsenault, A. C.; Míguez, H.; Kitaev, V.; Ozin, G. A.; Manners, I. Adv. Mater. 2003, 25, 503-507.
  • 58
    • 34249655020 scopus 로고    scopus 로고
    • 1/2 and the equation ∂ = (polymer density) × ΣG/M, where ΣG is the sum of all group molar attraction constants (G) established by Small and Hoy and M is the repeat unit molecular weight. Small, P. A. J. Appl. Chem. 1953, 3, 71-80.
    • 1/2 and the equation ∂ = (polymer density) × ΣG/M, where ΣG is the sum of all group molar attraction constants (G) established by Small and Hoy and M is the repeat unit molecular weight. Small, P. A. J. Appl. Chem. 1953, 3, 71-80.
  • 60
    • 0035250763 scopus 로고    scopus 로고
    • X-ray photoelectron spectroscopy and commensurability arguments have been used to propose that poly(ferrocenyldimethylsilane) has a slight preference for the substrate in polystyrene block copolymers. Lammertink, R. G. H, Hempenius, M. A, Vancso, G. J, Shin, K, Rafailovich, M. H, Sokolov, J. Macromolecules 2001, 34, 942-950
    • X-ray photoelectron spectroscopy and commensurability arguments have been used to propose that poly(ferrocenyldimethylsilane) has a slight preference for the substrate in polystyrene block copolymers. Lammertink, R. G. H.; Hempenius, M. A.; Vancso, G. J.; Shin, K.; Rafailovich, M. H.; Sokolov, J. Macromolecules 2001, 34, 942-950.
  • 62
    • 33947282802 scopus 로고    scopus 로고
    • Extensive thin film investigations (varied film thickness, varied solvents for solvent annealing, varied annealing conditions) using the other PS-b-PFEMS diblock copolymers (including PS-b-PFEMS (0.25, have shown that this nanoporous morphology only arises when PS-b-PFEMS (0.36) is used. Although it seems that this morphology is specific to this polymer system, it is certainly possible that these results may be reproduced with a different polymer in the future, b) Extensive staining experiments using RuO4 have been conducted in an attempt to confirm this nanoporous cylindrical thin film morphology. Unfortunately, an interesting interfacial staining artifact prevents confirmation of this morphology with complete certainty. See: Wang, Y, Coombs, N, Turak, A, Lu, Z.-H, Manners, I, Winnik, M. A. Macromolecules 2007, 40, 1594-1597
    • 4 have been conducted in an attempt to confirm this nanoporous cylindrical thin film morphology. Unfortunately, an interesting interfacial staining artifact prevents confirmation of this morphology with complete certainty. See: Wang, Y.; Coombs, N.; Turak, A.; Lu, Z.-H.; Manners, I.; Winnik, M. A. Macromolecules 2007, 40, 1594-1597.
  • 63
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    • We have preliminarily shown by magnetic force microscopy that these rings are magnetic. We are currently investigating the nature of the magnetism. Our areal density of magnetic rings, 990 rings/μm2. For a recently published nanosphere template approach see: Zhu, F. Q, Fan, D, Zhu, X, Zhu, J.-G, Cammarata, R. C, Chien, C.-L. Adv. Mater. 2004, 16, 2155-2159
    • 2. For a recently published nanosphere template approach see: Zhu, F. Q.; Fan, D.; Zhu, X.; Zhu, J.-G.; Cammarata, R. C.; Chien, C.-L. Adv. Mater. 2004, 16, 2155-2159.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.