Abstract
We develop a theory to describe the reorientation phenomena in the lamellar phase of block copolymer melts under reciprocating shear flow. We show that, similar to the steady shear, the oscillating flow anisotropically suppresses fluctuations and gives rise to the parallel to-->perpendicular to transition. The experimentally observed high-frequency reverse transition is explained in terms of interaction between the melt and the shear-cell walls.
Original language | English |
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Article number | 031803 |
Number of pages | 3 |
Journal | Physical Review E |
Volume | 65 |
Issue number | 3 |
DOIs | |
Publication status | Published - Mar 2002 |
Keywords / Materials (for Non-textual outputs)
- DIBLOCK COPOLYMER
- TRANSITION
- ALIGNMENT
- EQUILIBRIUM