Abstract
This paper reports the first successful preparation of perfectly aligned cylindrical microdomains in liquid crystal (LC) diblock copolymer, polystyrene-block-poly-LC with a poly-LC composition of 84%, by application of a magnetic field. The prerequisite for their alignment is the exhibition of order-disorder transition of the microdomain structure. When the poly-LC segments transform from the isotropic phase to the nematic, well-defined microcylinders are concurrently formed from the weakly segregating state, and their alignment along the magnetic field is realized through the magnetic alignment of LC mesogens.
| Original language | English |
|---|---|
| Number of pages | 4 |
| Journal | Japanese Journal of Applied Physics. Part 2, Letters |
| Volume | 44 |
| DOIs | |
| Publication status | Published - 2005 |
Keywords
- side-chain liquid crystalline polymer
- block copolymer
- magnetic alignment
- nematic phase
- microphase separation
- cylindrical microdomain
- LIVING ANIONIC-POLYMERIZATION
- THERMOTROPIC PHASE-BEHAVIOR
- WELL-DEFINED STRUCTURES
- BLOCK-COPOLYMERS
- CONFORMATION
- HOMOPOLYMERS
- MORPHOLOGY
- POLYMERS
Cite this
Orientation of microphase-segregated cylinders in liquid crystalline diblock copolymer by magnetic field. / Tomikawa, N ; Lu, Z B ; Itoh, T ; Imrie, C T ; Adachi, M ; Tokita, M ; Watanabe, J .
In: Japanese Journal of Applied Physics. Part 2, Letters, Vol. 44, 2005.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Orientation of microphase-segregated cylinders in liquid crystalline diblock copolymer by magnetic field
AU - Tomikawa, N
AU - Lu, Z B
AU - Itoh, T
AU - Imrie, C T
AU - Adachi, M
AU - Tokita, M
AU - Watanabe, J
PY - 2005
Y1 - 2005
N2 - This paper reports the first successful preparation of perfectly aligned cylindrical microdomains in liquid crystal (LC) diblock copolymer, polystyrene-block-poly-LC with a poly-LC composition of 84%, by application of a magnetic field. The prerequisite for their alignment is the exhibition of order-disorder transition of the microdomain structure. When the poly-LC segments transform from the isotropic phase to the nematic, well-defined microcylinders are concurrently formed from the weakly segregating state, and their alignment along the magnetic field is realized through the magnetic alignment of LC mesogens.
AB - This paper reports the first successful preparation of perfectly aligned cylindrical microdomains in liquid crystal (LC) diblock copolymer, polystyrene-block-poly-LC with a poly-LC composition of 84%, by application of a magnetic field. The prerequisite for their alignment is the exhibition of order-disorder transition of the microdomain structure. When the poly-LC segments transform from the isotropic phase to the nematic, well-defined microcylinders are concurrently formed from the weakly segregating state, and their alignment along the magnetic field is realized through the magnetic alignment of LC mesogens.
KW - side-chain liquid crystalline polymer
KW - block copolymer
KW - magnetic alignment
KW - nematic phase
KW - microphase separation
KW - cylindrical microdomain
KW - LIVING ANIONIC-POLYMERIZATION
KW - THERMOTROPIC PHASE-BEHAVIOR
KW - WELL-DEFINED STRUCTURES
KW - BLOCK-COPOLYMERS
KW - CONFORMATION
KW - HOMOPOLYMERS
KW - MORPHOLOGY
KW - POLYMERS
U2 - 10.1143/JJAP.44.L711
DO - 10.1143/JJAP.44.L711
M3 - Article
VL - 44
JO - Japanese Journal of Applied Physics. Part 2, Letters
JF - Japanese Journal of Applied Physics. Part 2, Letters
SN - 0021-4922
ER -