G.p.c. and viscometric investigation on grafting of styrene-co-acrylonitrile polymer to ethylene propylene elastomer

Chirico, A. De; Arrighetti, S.; Bruzzone, M.

doi:10.1016/0032-3861(81)90174-9

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…As the chain length distribution of SAN molecules grafted onto EPDM chains is not known, this finding needs independent verification. Results reported on other types of EPDM-g-SAN graft copolymers, analyzed with the same technique, showed that SAN content may vary in different ways across the chromatogram (De Chirico et al, 1981).…”

Section: Size-exclusion Chromatography With Multiplementioning

confidence: 85%

Compositional Characterization of AES Blends by Size-Exclusion and Precipitation−Redissolution Liquid Chromatography

Chiantore

1997

Ind. Eng. Chem. Res.

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Chemical composition characterization of blends formed by styrene−acrylonitrile (SAN), ethylene−propylenediene (EPDM) and EPDM-g-SAN copolymer molecules has been performed with size-exclusion chromatography with DRI and UV detectors. With proper detector calibration reliable average composition results were obtained, whereas it has been found that the composition distributions calculated from the chromatogram fractions are affected by large experimental errors. The blend components were successfully separated with precipitation−redissolution liquid chromatography, and an evaporative light scattering detector was found suitable for eliminating baseline drifts in the chromatograms, due to the eluent gradients which had to be employed. The application of evaporative detectors for quantitative measurements, however, appears questionable.

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