Monitoring oligomers in a polymer

Details Monitoring oligomers in a polymer Monitoring oligomers in a polymer

1990-06-25

1992-01-14

Dawson, Robert A.

Liquid purification or separation

Processes

Chromatography

73 611C, 2101982, 210635, 264184, B01D 1508

Patent

active

050807986

ABSTRACT:
There are provided methods for monitoring the oligomeric content of prepolymers and polymers, which methods employ high-performance liquid chromatographic techniques. Typically, the methods of the present invention may be used to determine the oligomeric content of polyethylene terephthalate polymers and prepolymers.

REFERENCES:
patent: 4147552 (1979-04-01), Specht et al.
patent: 4352745 (1982-10-01), James et al.
patent: 4895660 (1990-01-01), Kershner et al.
patent: 4968471 (1990-11-01), Ito et al.
Snyder, L. R. and Kirkland, J. J., Introduction to Modern Liquid Chromatography, New York, 1979 pp. 552-554.

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