Chemical composition distribution study in ethylene/1-hexene copolymerization to produce LLDPE material using MgCl2-TiCl4-based Ziegler-Natta catalysts

2010 ◽  
Vol 115 (2) ◽  
pp. 826-836 ◽  
Author(s):  
Thomas Garoff ◽  
Laura Mannonen ◽  
Marjo Väänänen ◽  
Virgine Eriksson ◽  
Kalle Kallio ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Composition Distribution ◽  
Distribution Study ◽  
Chemical Composition Distribution ◽  
Ziegler Natta Catalysts

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

Describing and quantifying the chemical composition distribution in unimodal and multimodal ZN-polyethylene using CRYSTAF

2015 ◽  
Vol 133 (9) ◽  
pp. n/a-n/a ◽  
Author(s):  
Andreas Albrecht ◽  
Kumudini Jayaratne ◽  
Ljiljana Jeremic ◽  
Victor Sumerin ◽  
Anneli Pakkanen
Keyword(s):  
Chemical Composition ◽  
Composition Distribution ◽  
Chemical Composition Distribution
Sign in / Sign up

Export Citation Format

Share Document