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Colloid and Polymer Science

, Volume 291, Issue 12, pp 2805–2813 | Cite as

Drying dissipative structures of cationic gel spheres of lightly cross-linked poly(2-vinyl pyridine) (170 ∼ 180 nm in diameter) in the deionized aqueous suspension

  • Tsuneo OkuboEmail author
  • Syuji Fujii
  • Yoshinobu Nakamura
Original Contribution

Abstract

Drying dissipative patterns of cationic gel crystals of lightly cross-linked poly(2-vinyl pyridine) spheres (AIBA-P2VP, 170 ∼ 180 nm in diameter) were observed on a cover glass, a watch glass, and a Petri glass dish. Convectional patterns were recognized with the naked eyes. Two kinds of the broad rings were observed at the outside edge and inner region in the macroscopic drying pattern, and their size at the inner regions first decreased and then turned to increase as gel concentration decreased. Formation of the similar-sized aggregates, i.e., hierarchical aggregation and their ordered arrays were observed. This work supported strongly the formation of the microscopic drying structures of (a) ordered rings, (b) flickering ordered spoke-lines, (c) net structure, and (d) lattice-like ordered structures of the aggregated particles. The ordering of the similar-sized aggregates of the cationic gel spheres (AIBA-P2VP) in this work is similar to that of the large cationic gel spheres of poly(2-vinyl pyridine) (385 ∼ 400 nm in diameter) and further to that of the anionic thermosensitive gel spheres of poly(N-isopropyl acrylamide). Role of the electrical double layers around the aggregates and their interaction with the substrates during dryness are important for the ordering. The microscopic drying patterns of gel spheres were different from those of linear-type polymers and also from typical colloidal hard spheres, though the macroscopic patterns such as broad ring formation were similar to each other.

Keywords

Cationic gel spheres Poly(2-vinyl pyridine) Drying pattern Dissipative structure Ordered array Similar-sized aggregates Convectional pattern 

Notes

Acknowledgments

The research funds from AMX Co. (Tokyo) to T.O. are appreciated deeply. S.F. acknowledges Grand-in-Aid for Challenging Exploratory Research (Project No. 24655212) promoted by Japan Society for the Promotion of Science and Grant-in-Aid for Scientific Research on Innovative Areas “Molecular Soft-Interface Science” from the Ministry of Education, Culture, Sports, Science and Technology of Japan.

References

  1. 1.
    Okubo T (2006) In: Stoylov SP, Stoimenova MV (eds) Molecular and colloidal electro-optics. Taylor & Francis, New York, p 573Google Scholar
  2. 2.
    Okubo T (2008) In: Nagarajan R, Hatton TA (eds) Nanoparticles: syntheses, stabilization, passivation and functionalization. ACS Book, Washington DC, p 256CrossRefGoogle Scholar
  3. 3.
    Okubo T (2010) Macromol Symp 288:67CrossRefGoogle Scholar
  4. 4.
    Deegan RD, Bakajin O, Dupont TF, Huber G, Nagel SR, Witten TA (1997) Nature 389:827CrossRefGoogle Scholar
  5. 5.
    Deegan RD, Bakajin O, Dupont TF, Huber G, Nagel SR, Witten TA (2000) Phys Rev E 62:756CrossRefGoogle Scholar
  6. 6.
    Okubo T, Itoh E, Tsuchida A, Kokufuta E (2006) Colloid Polym Sci 285:339CrossRefGoogle Scholar
  7. 7.
    Okubo T, Suzuki D, Yamagata T, Katsuno A, Mizutani M, Kimura H, Tsuchida A (2011) Colloid Polym Sci 289:807CrossRefGoogle Scholar
  8. 8.
    Okubo T, Suzuki D, Tsuchida A (2012) Colloid Polym Sci 290:411CrossRefGoogle Scholar
  9. 9.
    Okubo T, Suzuki D, Tsuchida A (2012) Colloid Polym Sci 290:867CrossRefGoogle Scholar
  10. 10.
    Okubo T, Suzuki D, Tsuchida A (2012) Colloid Polym Sci 290:1901CrossRefGoogle Scholar
  11. 11.
    Okubo T, Fujii S, Aono K, Nakamura Y (2013) Colloid Polym Sci 291:1019CrossRefGoogle Scholar
  12. 12.
    Okubo T, Fujii S, Aono K, Nakamura Y. Colloid Polym Sci, doi  10.1007/s00396-013-3000-3 (2013, in press)
  13. 13.
    Loxley A, Vincent B (1997) Colloid Polym Sci 275:1108CrossRefGoogle Scholar
  14. 14.
    Dupin D, Fujii S, Armes SP, Reeve P, Baxter SM (2006) Langmuir 22:3381CrossRefGoogle Scholar
  15. 15.
    Okubo T, Suzuki D, Yamagata T, Katsuno A, Sakurai M, Kimura H, Tsuchida A (2011) Colloid Polym Sci 289:291CrossRefGoogle Scholar
  16. 16.
    Okubo T, Suzuki D, Yamagata T, Horigome K, Shibata K, Tsuchida A (2011) Colloid Polym Sci 289:1273CrossRefGoogle Scholar
  17. 17.
    Suzuki D, Horigome K, Yamagata T, Shibata K, Tsuchida A, Okubo T (2011) Colloid Polym Sci 289:1799CrossRefGoogle Scholar
  18. 18.
    Suzuki D, Yamagata T, Horigome K, Shibata K, Tsuchida A, Okubo T (2012) Colloid Polym Sci 290:107CrossRefGoogle Scholar
  19. 19.
    Fujii S, Kameyama S, Armes SP, Dupin D, Suzaki M, Nakamura Y (2010) Soft Matter 6:635CrossRefGoogle Scholar
  20. 20.
    Okubo T, Okamoto J, Tsuchida A (2009) Colloid Polym Sci 287:351CrossRefGoogle Scholar
  21. 21.
    Okubo T, Okamoto J, Tsuchida A (2009) Colloid Polym Sci 287:645CrossRefGoogle Scholar
  22. 22.
    Okubo T (2009) Colloid Polym Sci 287:167CrossRefGoogle Scholar
  23. 23.
    Okubo T, Kimura H, Kimura T, Hayakawa F, Shibata T, Kimura K (2005) Colloid Polym Sci 283:1CrossRefGoogle Scholar
  24. 24.
    Okubo T, Okamoto J, Tsuchida A (2009) Colloid Polym Sci 286:1123CrossRefGoogle Scholar
  25. 25.
    Okubo T (2008) Colloid Polym Sci 286:1307CrossRefGoogle Scholar
  26. 26.
    Okubo T, Okamoto J, Tsuchida A (2010) Colloid Polym Sci 288:189CrossRefGoogle Scholar
  27. 27.
    Okubo T (2006) Colloid Polym Sci 285:225CrossRefGoogle Scholar
  28. 28.
    Stoeber W, Fink A, Bohn E (1968) J Colloid Interface Sci 26:62CrossRefGoogle Scholar
  29. 29.
    Greer RT (1971) Scan Electron Microsc 4:153Google Scholar
  30. 30.
    Okubo T, Hongyo K (2087) Enokida A (1984) J Chem Soc. Faraday Trans 1 80:2087Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Institute for Colloidal OrganizationUjiJapan
  2. 2.Department of Applied Chemistry, Faculty of EngineeringOsaka Institute of TechnologyOsakaJapan

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