Patterning of ultrathin polymethylmethacrylate films by in-situ photodirecting of the Marangoni flow

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43913991" target="_blank" >RIV/60461373:22310/17:43913991 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/17:43913991

Výsledek na webu

<a href="https://doi.org/10.1016/j.apsusc.2016.10.074" target="_blank" >https://doi.org/10.1016/j.apsusc.2016.10.074</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apsusc.2016.10.074" target="_blank" >10.1016/j.apsusc.2016.10.074</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Patterning of ultrathin polymethylmethacrylate films by in-situ photodirecting of the Marangoni flow

Popis výsledku v původním jazyce

Laser heating and Marangoni flow result in the formation of surface structures with different geometries and shape on thin polymer films. By laser beam irradiation combined with a sample movement the solid polymethylmethacrylate (PMMA) films are heated and undergo phase transition which leads to a material flow. Since the laser beam has a non-linear distribution of energy, the PMMA film is heated inhomogeneously and a surface tension gradient in a lateral direction is introduced. During this procedure additional phenomena such as &quot;reversible&quot; or cyclic polymer flow also take place. The careful choice of experimental conditions enables the preparation of patterns with sophisticated geometries and with hierarchical pattern organization. Depending on initial PMMA film thickness and speed of the sample movement line arrays are created, which can subsequently be transformed into the crimped lines or system of circular holes. In addition, the introduction of a constant acceleration in the sample movement or a laser beam distortion enables the preparation of regularly crimped lines, ordered hexagonal holes or overlapped plates.

Název v anglickém jazyce

Patterning of ultrathin polymethylmethacrylate films by in-situ photodirecting of the Marangoni flow

Popis výsledku anglicky

Laser heating and Marangoni flow result in the formation of surface structures with different geometries and shape on thin polymer films. By laser beam irradiation combined with a sample movement the solid polymethylmethacrylate (PMMA) films are heated and undergo phase transition which leads to a material flow. Since the laser beam has a non-linear distribution of energy, the PMMA film is heated inhomogeneously and a surface tension gradient in a lateral direction is introduced. During this procedure additional phenomena such as &quot;reversible&quot; or cyclic polymer flow also take place. The careful choice of experimental conditions enables the preparation of patterns with sophisticated geometries and with hierarchical pattern organization. Depending on initial PMMA film thickness and speed of the sample movement line arrays are created, which can subsequently be transformed into the crimped lines or system of circular holes. In addition, the introduction of a constant acceleration in the sample movement or a laser beam distortion enables the preparation of regularly crimped lines, ordered hexagonal holes or overlapped plates.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Applied Surface Science

ISSN

0169-4332

e-ISSN

—

Svazek periodika

394

Číslo periodika v rámci svazku

FEB 1 2017

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

562-568

Kód UT WoS článku

000389152900065

EID výsledku v databázi Scopus

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