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dc.contributor.authorWodo, Olga
dc.contributor.authorGanapathysubramanian, Baskar
dc.date.accessioned2016-02-25T13:31:25Z
dc.date.available2016-02-25T13:31:25Z
dc.date.issued2014-10-13
dc.identifier.citationWodo O, Ganapathysubramanian B (2014) How do evaporating thin films evolve? Unravelling phase-separation mechanisms during solvent-based fabrication of polymer blends. Applied Physics Letters 105: 153104. Available: http://dx.doi.org/10.1063/1.4898136.
dc.identifier.issn0003-6951
dc.identifier.issn1077-3118
dc.identifier.doi10.1063/1.4898136
dc.identifier.urihttp://hdl.handle.net/10754/598517
dc.description.abstract© 2014 AIP Publishing LLC. Solvent-based fabrication is a flexible and affordable approach to manufacture polymer thin films. The properties of products made from such films can be tailored by the internal organization (morphology) of the films. However, a precise knowledge of morphology evolution leading to the final film structure remains elusive, thus limiting morphology control to a trial and error approach. In particular, understanding when and where phases are formed, and how they evolve would provide rational guidelines for more rigorous control. Here, we identify four modes of phase formation and subsequent propagation within the thinning film during solvent-based fabrication. We unravel the origin and propagation characteristics of each of these modes. Finally, we construct a mode diagram that maps processing conditions with individual modes. The idea introduced here enables choosing processing conditions to tailor film morphology characteristics and paves the ground for a deeper understanding of morphology control with the ultimate goal of precise, yet affordable, morphology manipulation for a large spectrum of applications.
dc.description.sponsorshipThis research was supported in part by the National Science Foundation through XSEDE resources provided by TACC under grant number TG-CTS110007. BG & OW were supported in part by NSF CAREER 1149365, and Global Collaborative Research, King Abdullah University of Science and Technology: CRG-1-2012-THO-015-ISU.
dc.publisherAIP Publishing
dc.titleHow do evaporating thin films evolve? Unravelling phase-separation mechanisms during solvent-based fabrication of polymer blends
dc.typeArticle
dc.identifier.journalApplied Physics Letters
dc.contributor.institutionMechanical Engineering Department, Iowa State University, 2013 Black Engineering, Ames, Iowa 50011, USA
kaust.grant.numberCRG-1-2012-THO-015-ISU


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