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Two-Dimensional Liquid Chromatography Analysis of Polystyrene/Polybutadiene Block Copolymers
- Source :
- Analytical chemistry. 90(10)
- Publication Year :
- 2018
-
Abstract
- A detailed characterization of a commercial polystyrene/polybutadiene block copolymer material (Styrolux) was carried out using two-dimensional liquid chromatography (2D-LC). The Styrolux is prepared by statistical linking reaction of two different polystyrene- block-polybutadienyl anion precursors with a multivalent linking agent. Therefore, it is a mixture of a number of branched block copolymers different in molecular weight, composition, and chain architecture. While individual LC analysis, including size exclusion chromatography, interaction chromatography, or liquid chromatography at critical condition, is not good enough to resolve all the polymer species, 2D-LC separations coupling two chromatography methods were able to resolve all polymer species present in the sample; at least 13 block copolymer species and a homopolystyrene blended. Four different 2D-LC analyses combining a different pair of two LC methods provide their characteristic separation results. The separation characteristics of the 2D-LC separations are compared to elucidate the elution characteristics of the block copolymer species.
- Subjects :
- chemistry.chemical_classification
Chromatography
Size-exclusion chromatography
02 engineering and technology
Polymer
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Analytical Chemistry
chemistry.chemical_compound
Polybutadiene
chemistry
Copolymer
Polystyrene
0210 nano-technology
Critical condition
Subjects
Details
- ISSN :
- 15206882
- Volume :
- 90
- Issue :
- 10
- Database :
- OpenAIRE
- Journal :
- Analytical chemistry
- Accession number :
- edsair.doi.dedup.....29265744ead6dd8e855cf6475992fa21