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Determination of molecular weights and solubility parameters of high-polymers by gas chromatography

Gas-chromatographische Bestimmung von Molekulargewichten und Löslichkeitsparametern von Hochpolymeren

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Zusammenfassung

Bei der empfohlenen Methode wird eine gas-chromatographische Bestimmung bei zwei verschiedenen Temperaturen mit dem Polymeren als Lösungsmittel und einem Halogen als gelöster Substanz durchgeführt. Die Molekulargewichte von Silicon Oil DC 550, 702 und 710 sowie von PEG 1500, 4000 und 6000 wurden zu 50000, 62300, 89200, 1500, 3100 und 6750 gefunden; die entsprechenden Löslichkeitsparameter betragen 8,1, 8,0, 7,9, 11,7, 11,6 und 11,6.

Summary

A new method for the simultaneous determination of molecular weight and solubility parameter of high-polymer was proposed using the sample polymer as the solvent and a halogen as the solute in gas chromatography at two different temperatures. Molecular weights of Silicon Oil DC 550, 702, and 710, and of PEG 1500, 4000, and 6000 are 50000, 62300, and 89200, and 1500, 3100, and 6750, respectively. Solubility parameters of them are 8.1, 8.0, and 7.9, and 11.7, 11.6, and 11.6, respectively.

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References

  1. Brandrap, J., Immergut, E. H.: Polymer Handbook. New York: John Wiley & Sons 1975

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  2. Otozai, K., Tohyama, I.: Z. Anal. Chem.279, 195 (1976)

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  3. Stecker, P. G.: The Merck Index, 8 ed. Ranway: Merck & Co. 1968

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Authors and Affiliations

  1. Faculty of Science, Osaka University, Japan

    Kiyoteru Otozai

  2. Government Industrial Research Institute, Osaka, Japan

    Itiro Tohyama

Authors
  1. Kiyoteru Otozai
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  2. Itiro Tohyama
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Additional information

The authors are indebted to Dr. Y. Dozen for his skilful measurements of molecular weights with the usual methods.

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Otozai, K., Tohyama, I. Determination of molecular weights and solubility parameters of high-polymers by gas chromatography. Z. Anal. Chem. 281, 131–133 (1976). https://doi.org/10.1007/BF00624698

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  • DOI: https://doi.org/10.1007/BF00624698

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