AI Article Synopsis
- The paper investigates how polymer films are influenced by two different polymerization processes happening either simultaneously or one after the other, focusing on their anchoring properties.
- It explains a compensating effect observed when using two orthogonal polymerization methods, detailing how the anchoring energy is calculated from changes in Helmholtz free energy in a defined interface layer.
- The findings include a mathematical expression that accounts for the angular orientation of the photoaligning processes and proposes a method for achieving controlled anchoring strength during fabrication.
Article Abstract
In this paper we extend a statistical microscopic analysis to the anchoring properties of polymer films obtained by two concomitant or subsequent polymerization processes along two different directions. We can thus explain the recently observed compensating effect of two orthogonal polymerization processes. An expression for the anchoring energy has been evaluated from the extra Helmholtz free energy within an interface layer where the interactions shift from polymer-nematic interactions to nematic-nematic interactions, as in bulk. The result includes the angular dependence on the two photoaligning directions. A procedure of getting controlled anchoring strength in situ is suggested.
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| http://dx.doi.org/10.1103/PhysRevE.65.041710 | DOI Listing |
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