The radial bipolar transition in droplets is readily observed in a PDLC but can both configurations occur simultaneously in a PDLC matrix at the same time?
Well, the radial and bipolar droplet configuration depends mainly on the type of anchoring agent that surrounds the droplets. In fact,homeotropic anchoring agent yields radial droplets while as planar anchoring agent gives rise to bipolar droplet formation.
To be precise about the query,I believe the coexistence of these types of droplet configurations is possible in a heterogenous anchoring mixture of homeotropic agent & planar anchoring agent,provided the respective anchoring agents do not react with each other.
Thank you so much Sir. There should be an anchoring incing agent to induce any such conditions.
I wanted to ask if you have any literature relating to my query please send me the links.
Thank you again
First of All, Based on the anchoring energy you can have more than one morphology in any liquid crystal system, and to be precise to your question as you have asked in reference to PDLC(Which is primerly LC embedded into the polymer matrix), so in response to your answer is yes...........you can have any morphology(radial, bipolar, distorted radial, distorted bipolar, Escaped......so on etc). To be precise to your answer, its the interface between LC and Polymer matrix, plays the key role in it. But parameter like diamension of polymer matrix is also very critical. If its is very large then liquid crystal cannot have bipolar morphology, becz it is not stable in general, so it transform or reform into radial or vice versa. So if you want to check then pls perform an experiment::::: As based on the basis of your question i presumed you r basically generating PDLC through SIPS approach, so pls very the parameter, like time of film formation, and vary the concentration drastically(reason: so that you can generate larger and very smaller droplet morphology )..............then in some of your samples you will definately get the mixed morphology. along with that pls try with TIPS, bcz there your can easily tune the morphology of the polymer matrix, by simply varying the temperature of cooling for the pDLC. Porcess like like quenching or diffusion will come to the picture........................................And then you will found or observe it easily that,,,,its the morphological dimension of your polymer matrix which will governs the nature of your LC droplet type. RK,,,,,,usually the radial and bipolar r stable form of droplets, but in some cases you can found other type of droplets like distorted Radial: where the centre is little displaced from the centre,,,,and generally observed in case of sample where there r phase transforms from bipolar to radial morphology or vice versa......
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