Plasma polymerized acetaldehyde thin films for retention of volatile organic compounds

Quimica nova

Hernandez, Leonardo Frois¹  Demarquette, Nicole Raymonde²  Carvalho, Alexsander Tressino de²  Lima, Roberto da Rocha²  Silva, Maria Lúcia Pereira da² 

[1] Faculdade de Tecnologia de São Paulo, São Paulo, Brasil;Universidade de São Paulo, São Paulo, Brasil

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 characterizationof plasma polymerized acetaldehyde thin films. These films show highly polarspecies, are hydrophilic, organophilic and easily adsorb organic reactants withCO radicals but only allow permeation of reactants with OH radicals. The goodstep 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. Depositionon microchannels showed the possibility of chromatographic columns and/or retentionsystem production to selectively detect or remove organic compounds from gasflows.

【 授权许可】

CC BY