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Reference type: Journal
Authors: Matsuguchi M, Uno T
Article Title: Molecular imprinting strategy for solvent molecules and its application for QCM-based VOC vapor sensing.
Publication date: 2006
Journal: Sensors and Actuators B: Chemical
Volume: 113
Issue: (1)
Page numbers: 94-99.
DOI: 10.1016/j.snb.2005.02.028
Alternative URL: http://www.sciencedirect.com/science/article/B6THH-4FM3X2H-8/2/83d1ea83bd1ec9ba9f6de2643035ee5d

Abstract: Cross-linked polymers made of methyl methacrylate (MMA) as a monomer and divinylbenzene (DVB) as a cross-linking agent were prepared in the presence of toluene or p-xylene as a solvent. The cross-linked polymer prepared in toluene tended to sorb toluene vapor preferably, while the cross-linked polymer prepared in p-xylene sorbed p-xylene vapor preferably. The observed molecular recognition ability can be explained on the bases of an imprinting effect by solvent molecules. Molecularly imprinted polymer (MIP) powders were blended with PMMA, and the blended films were coated on a piezoelectric quartz crystal with a view to preparing QCM-based VOC sensors. The imprint effect was clearly observed, even in these blended films. The response of the sensor towards toluene or p-xylene vapor was reversible; however, the response time was slow due to the existence of the matrix polymer around the MIP particles
Template and target information: toluene, p-xylene
Author keywords: gas sensor, molecularly imprinted polymer, quartz crystal microbalance (QCM), Volatile organic compounds (VOCs)


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