Dynamical Approach to Microphase Separation in ABCA-Type Tetrablock Copolymers
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- Kaga Masafumi
- Yukawa Institute for Theoretical Physics, Kyoto University
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- Ohta Takao
- Yukawa Institute for Theoretical Physics, Kyoto University
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抄録
We study microphase separation of ABCA-type tetrablock copolymers mainly in the weak segregation limit by means of a coarse grained approach. Experiments by Matsushita and his coworkers show that only the non-centrosymmetric (NCS) lamellar structure (with the sequence …ABCAABCA…) is observed although its local free energy is not markedly different from that of the centrosymmetric (CS) lamellar structure (…ABCAACBA…). To clarify the origin of this unique order, we derive the free-energy functional and the set of kinetic equations for ABCA tetrablock copolymers. By solving this numerically in one dimension, we explore how the NCS lamellar structure is selected.
収録刊行物
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 75 (4), 043002-, 2006
一般社団法人 日本物理学会
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詳細情報
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- CRID
- 1390282679166559488
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- NII論文ID
- 110004729240
- 210000106067
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- NII書誌ID
- AA00704814
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- BIBCODE
- 2006JPSJ...75d3002K
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 7882174
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可