Abstract
Using in situ small-angle X-ray scattering, the electric field induced orientation in a block copolymer having a cylindrical microdomain morphology was investigated. Studies were performed with the copolymer in different initial states. Beginning with a disordered copolymer, composition fluctuations are oriented by the electric field. Following cooling across the disorder-to-order-transition, microdomains are oriented parallel to the applied field. Beginning with a microphase-separated copolymer where the microdomains are oriented normal to the field, the domain orientation becomes unstable at high field strengths, and the microdomains reorient in a piecewise manner.
Original language | English |
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Pages (from-to) | 8106-8110 |
Number of pages | 5 |
Journal | Macromolecules |
Volume | 35 |
Issue number | 21 |
DOIs | |
State | Published - Oct 8 2002 |
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry