Plasma polymerized acetaldehyde thin films for retention of volatile organic compounds

Química Nova

Faculdade de Tecnologia de São Paulo, São Paulo, Brasil¹  Demarquette, Nicole Raymonde¹  Carvalho, Alexsander Tressino de¹  Universidade de São Paulo, São Paulo, Brasil¹  Lima, Roberto da Rocha¹  Silva, Maria Lúcia Pereira da¹  Hernandez, Leonardo Frois¹ 

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

DOI  :  10.1590/S0100-40422008000600025

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown