Characterization of the Chemical Composition Distribution of Ethylene/1-Alkene Copolymers with HPLC and CRYSTAF-Comparison of Results

2015 ◽  
Vol 216 (7) ◽  
pp. 721-732 ◽  
Author(s):  
Rajesh Chitta ◽  
Tibor Macko ◽  
Robert Brüll ◽  
Christophe Boisson ◽  
Emilie Cossoul ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Composition Distribution ◽  
Comparison Of Results ◽  
Chemical Composition Distribution

High-throughput screening of the chemical composition distribution of random styrene-butyl acrylate copolymers

e-Polymers ◽  
2005 ◽  
Vol 5 (1) ◽  
Author(s):  
Iván García Romero ◽  
Harald Pasch
Keyword(s):  
Chemical Composition ◽  
High Throughput ◽  
Butyl Acrylate ◽  
High Throughput Screening ◽  
Size Exclusion ◽  
Chemical Compositions ◽  
Composition Distribution ◽  
Chemical Composition Distribution ◽  
Exclusion Chromatography ◽  
Liquid Chromatographic

AbstractThe development of high-throughput liquid chromatographic techniques for the analysis of styrene-butyl acrylate (SBA) copolymers is discussed. The analysis time in size-exclusion chromatography (SEC) can be reduced to about 3 min per sample when high-throughput SEC columns and high flow rates are used. In gradient HPLC, small columns with improved separation efficiencies can be applied. The time requirements can be decreased to less than 2 min per sample. Using the high-throughput HPLC technique, the chemical composition distribution of high-conversion SBA copolymers can be analyzed in a fast and efficient way. The calibration of HPLC separation is conducted by coupling the HPLC system with FTIR through the LC-transform interface. A comparison of the chemical compositions of the copolymers obtained by 1H NMR, off-line FTIR and coupled HPLCFTIR verifies the accuracy of the high-throughput copolymer analysis approach.

Chemical composition distribution of multicomponent copolymer chains

2004 ◽  
Vol 206 (1) ◽  
pp. 69-78 ◽  
Author(s):  
Siripon Anantawaraskul ◽  
João B.P. Soares ◽  
Paula M. Wood-Adams
Keyword(s):  
Chemical Composition ◽  
Composition Distribution ◽  
Chemical Composition Distribution
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