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
Tomikawa, N., Lu, Z. B., Itoh, T., Imrie, C. T., Adachi, M., Tokita, M., & Watanabe, J. (2005). Orientation of microphase-segregated cylinders in liquid crystalline diblock copolymer by magnetic field. Japanese Journal of Applied Physics. Part 2, Letters, 44. https://doi.org/10.1143/JJAP.44.L711