Composition dependence of nanophase-separated structures formed by star-shaped terpolymers of the A 1.0 B 1.0 C X type

A. Takano, W. Kawashima, S. Wada, K. Hayashida, S. Sato, S. Kawahara, Y. Isono, M. Makihara, N. Tanaka, Daisuke Kawaguchi, Y. Matsushita

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Several hierarchical nanophase-separated structures have been observed for a series of ABC star-shaped terpolymers by transmission electron microscopy (TEM) and electron computerized tomography (3D-TEM). The seven terpolymers synthesized are composed of polyisoprene (I), polystyrene (S), and poly(2-vinylpyridine) (P), their volume fraction ratios of I:S:P are 1:1:X, where X equals 0.2, 0.4, 0.7, 1.2, 1.9, 3.0, and 4.9, respectively, and additional four samples were prepared by blending each two parent terpolymers. From morphological observation by TEM and tomography, a terpolymer with X of 0.2 shows lamellar structure with spheres at the interface, those with X ranging from 0.4 to 1.9 show cylindrical structures with twodimensional tiling, while those with X of 3.0 and 4.9 show hierarchical cylinders-inlamella structure. Two the other terpolymer samples with X of 7.9 and 10 were produced by blending a P homopolymer with the terpolymer I 1.0 S 1.0 P 4.9 , and they both exhibited columnar piled disk cylinders in P matrix. From the comparison of the present results with the predictions by the Monte-Carlo simulation, it was confirmed that the observed nanophase-separated structures of the ISP star-shaped terpolymers are mostly in good agreement with the prediction.

Original languageEnglish
Pages (from-to)2277-2283
Number of pages7
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume45
Issue number16
DOIs
Publication statusPublished - Aug 15 2007
Externally publishedYes

Fingerprint

Terpolymers
Stars
stars
transmission electron microscopy
tomography
Chemical analysis
polyisoprenes
predictions
Transmission electron microscopy
polystyrene
Polyisoprenes
matrices
Lamellar structures
Computerized tomography
Polystyrenes
Homopolymerization
electrons
simulation
Tomography
Volume fraction

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Composition dependence of nanophase-separated structures formed by star-shaped terpolymers of the A 1.0 B 1.0 C X type . / Takano, A.; Kawashima, W.; Wada, S.; Hayashida, K.; Sato, S.; Kawahara, S.; Isono, Y.; Makihara, M.; Tanaka, N.; Kawaguchi, Daisuke; Matsushita, Y.

In: Journal of Polymer Science, Part B: Polymer Physics, Vol. 45, No. 16, 15.08.2007, p. 2277-2283.

Research output: Contribution to journalArticle

Takano, A, Kawashima, W, Wada, S, Hayashida, K, Sato, S, Kawahara, S, Isono, Y, Makihara, M, Tanaka, N, Kawaguchi, D & Matsushita, Y 2007, ' Composition dependence of nanophase-separated structures formed by star-shaped terpolymers of the A 1.0 B 1.0 C X type ', Journal of Polymer Science, Part B: Polymer Physics, vol. 45, no. 16, pp. 2277-2283. https://doi.org/10.1002/polb.21241
Takano, A. ; Kawashima, W. ; Wada, S. ; Hayashida, K. ; Sato, S. ; Kawahara, S. ; Isono, Y. ; Makihara, M. ; Tanaka, N. ; Kawaguchi, Daisuke ; Matsushita, Y. / Composition dependence of nanophase-separated structures formed by star-shaped terpolymers of the A 1.0 B 1.0 C X type In: Journal of Polymer Science, Part B: Polymer Physics. 2007 ; Vol. 45, No. 16. pp. 2277-2283.
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AU - Sato, S.

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AB - Several hierarchical nanophase-separated structures have been observed for a series of ABC star-shaped terpolymers by transmission electron microscopy (TEM) and electron computerized tomography (3D-TEM). The seven terpolymers synthesized are composed of polyisoprene (I), polystyrene (S), and poly(2-vinylpyridine) (P), their volume fraction ratios of I:S:P are 1:1:X, where X equals 0.2, 0.4, 0.7, 1.2, 1.9, 3.0, and 4.9, respectively, and additional four samples were prepared by blending each two parent terpolymers. From morphological observation by TEM and tomography, a terpolymer with X of 0.2 shows lamellar structure with spheres at the interface, those with X ranging from 0.4 to 1.9 show cylindrical structures with twodimensional tiling, while those with X of 3.0 and 4.9 show hierarchical cylinders-inlamella structure. Two the other terpolymer samples with X of 7.9 and 10 were produced by blending a P homopolymer with the terpolymer I 1.0 S 1.0 P 4.9 , and they both exhibited columnar piled disk cylinders in P matrix. From the comparison of the present results with the predictions by the Monte-Carlo simulation, it was confirmed that the observed nanophase-separated structures of the ISP star-shaped terpolymers are mostly in good agreement with the prediction.

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