Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Samuel J. Patrash"'
Publikováno v:
Chemistry of Materials. 9:1201-1207
Hybrid organic/inorganic polymers have been prepared incorporating fluoroalkyl-substituted bisphenol groups linked using oligosiloxane spacers. These hydrogen-bond acidic materials have glass-to-rubber transition temperatures below room temperature a
Publikováno v:
Analytical Chemistry. 67:2162-2169
A method for estimating the responses of polymer-coated acoustic wave vapor sensors has been developed. Polymer/gas partition coefficients, determined experimentally for at least 20-30 solute vapors by a simple gas chromatographic method, are used to
Publikováno v:
Analytical Chemistry. 67:1092-1106
A method for determining the optimal set of polymer sensor coatings to include in a surface acoustic wave (SAW) sensor array for the analysis of organic vapors is described. The method combines an extended disjoint principal components regression (ED
Autor:
Samuel J. Patrash, Edward T. Zellers
Publikováno v:
Analytica Chimica Acta. 288:167-177
The use of thermotropic nematic liquid crystals (LC) as surface acoustic wave (SAW) vapor sensor coatings were investigated. Responses to four pairs of isomeric aromatic organic vapors were measured using two LC coatings and four isotropic polymer co
Publikováno v:
Analytical chemistry. 68(5)
Selectivity patterns for the sorption of organic vapors from the gas phase into cavitand monolayers on acoustic wave sensors are very similar to those seen for sorption of the same vapors by amorphous polymers, demonstrating that the vapor/cavitand s
Publikováno v:
Sensors and Actuators B: Chemical. 12:123-133
The application of a disjoint principal-components regression method to the analysis of sensor-array response patterns is demonstrated using published data from ten polymer-coated surface-acoustic-wave (SAW) sensors exposed to each of nine vapors. Us
Publikováno v:
TRANSDUCERS '91: 1991 International Conference on Solid-State Sensors and Actuators. Digest of Technical Papers.
Models for predicting vapor/coating sorption based on the physical and chemical properties of the coatings and vapors have been investigated in an effort to establish selection criteria for sorptive SAW sensor array coatings for organic vapors. Senso
Autor:
Michael H. Abraham, Neal B. Gallagher, Jay W. Grate, Samuel J. Patrash, Barry M. Wise, Steven N. Kaganove
Publikováno v:
Analytical chemistry. 73(21)
In previous work, it was shown that, in principle, vapor descriptors could be derived from the responses of an array of polymer-coated acoustic wave devices. This new chemometric classification approach was based on polymer/vapor interactions followi
Autor:
Samuel J. Patrash, Edward T. Zellers
Publikováno v:
Analytical chemistry. 65(15)
Responses from an array of four polymer-coated surface acoustic wave sensors exposed to a series of 39 organic vapors were used to investigate sensor response models based on vapor boiling point, solubility parameters, and solvation parameters in con
Autor:
Robert Sulewski, Huiqiong Ke, Guo Zheng Zhang, David Smigiel, Mingwei Han, Edward T. Zellers, Samuel J. Patrash
Publikováno v:
American Industrial Hygiene Association journal. 53(2)
Results of permeation tests of several glove materials challenged with semiconductor processing formulations containing glycolether derivatives are described. Commercial glove samples of nitrile rubber (Edmont), natural rubber (Edmont and Baxter), bu