Creation of lateral structures in diblock copolymer thin films during vapor uptake and subsequent drying - effect of film thickness

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F14%3A00422294" target="_blank" >RIV/61389013:_____/14:00422294 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.eurpolymj.2013.11.003" target="_blank" >http://dx.doi.org/10.1016/j.eurpolymj.2013.11.003</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.eurpolymj.2013.11.003" target="_blank" >10.1016/j.eurpolymj.2013.11.003</a>

Result language
angličtina
Original language name
Creation of lateral structures in diblock copolymer thin films during vapor uptake and subsequent drying - effect of film thickness
Original language description
We have studied the structure formation in compositionally nearly symmetric poly(4-octylstyrene-b-butylmethacrylate) diblock copolymer films during exposure to saturated vapor of n-hexane (a poor solvent for both blocks) and subsequent drying using real-time, in situ grazing-incidence small-angle X-ray scattering (GISAXS). Previous bulk studies revealed a lamellar structure after thermo-annealing; and surface studies on hexane treated samples revealed a lateral surface structure (Černoch et al., 2007).We focus here on the effect of film thickness which is varied between 1.3 and 2.0 times the bulk lamellar thickness. We report on the lateral repeat distance as well as on the correlation length in the film plane. Complex, non-monotonous behavior is observed for both parameters. Upon drying, the lateral structure created during vapor treatment is stable only for the thick film, not for the intermediate and the thin film. The kinetics depends strongly on the film thickness; especially for
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
<a href="/en/project/GAP208%2F10%2F1600" target="_blank" >GAP208/10/1600: Polymeric particles and nanostructured materials stabilized by surface active molecules</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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