Grain growth and defect annihilation in block copolymers

H. J. Dai, N. P. Balsara, Bruce Garetz, M. C. Newstein

Research output: Contribution to journalArticle

Abstract

The time dependence of the size, shape, and concentration of ordered grains in a quenched block copolymer melt was studied by depolarized light scattering. Block copolymers are ideal systems for kinetic studies because the single scattering limit applies during all stages of grain growth. In the early stage, where the grains grow by consuming the disordered phase, grains have an elongated shape with an average aspect ratio of about 4. In the late stage, where the grains grow by defect annihilation, the grain growth occurs only along the minor axes.

Original languageEnglish (US)
Pages (from-to)3677-3680
Number of pages4
JournalPhysical Review Letters
Volume77
Issue number17
StatePublished - 1996

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block copolymers
defects
time dependence
aspect ratio
light scattering
kinetics
scattering

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Dai, H. J., Balsara, N. P., Garetz, B., & Newstein, M. C. (1996). Grain growth and defect annihilation in block copolymers. Physical Review Letters, 77(17), 3677-3680.

Grain growth and defect annihilation in block copolymers. / Dai, H. J.; Balsara, N. P.; Garetz, Bruce; Newstein, M. C.

In: Physical Review Letters, Vol. 77, No. 17, 1996, p. 3677-3680.

Research output: Contribution to journalArticle

Dai, HJ, Balsara, NP, Garetz, B & Newstein, MC 1996, 'Grain growth and defect annihilation in block copolymers', Physical Review Letters, vol. 77, no. 17, pp. 3677-3680.
Dai, H. J. ; Balsara, N. P. ; Garetz, Bruce ; Newstein, M. C. / Grain growth and defect annihilation in block copolymers. In: Physical Review Letters. 1996 ; Vol. 77, No. 17. pp. 3677-3680.
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