Plasma polymerized acetaldehyde thin films for retention of volatile organic compounds

Química Nova

Leonardo Frois Hernandez²  Roberto Da Rocha Lima¹  Alexsander Tressino De Carvalho¹  Nicole Raymonde Demarquette¹  Maria Lúcia Pereira Da Silva¹ 

[1] ,Faculdade de Tecnologia de São PauloSão Paulo SP ,Brasil

关键词: microcolumns for chromatography;    plasma polymerization;    adsorbent organic thin films;   

DOI  :  10.1590/S0100-40422008000600025

来源: SciELO

【 摘 要 】

The aim of this work is the production and characterization of plasma polymerized acetaldehyde thin films. These films show highly polar species, are hydrophilic, organophilic and easily adsorb organic reactants with CO radicals but only allow permeation of reactants with OH radicals. The good step coverage of films deposited on aluminum trenches is useful for sensor development. Films deposited on hydrophobic substrates may result in a discontinued layer, which allows the use of preconcentration in sample pretreatment. Deposition on microchannels showed the possibility of chromatographic columns and/or retention system production to selectively detect or remove organic compounds from gas flows.

【 授权许可】

CC BY-NC   
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