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Citation: He Qijian, Meng Diya. CALIBRATION OF SEC COLUMN USNG MORE THAN TWO POLYDISPERSE POLYMER STANDARDS WITH KNOWN NUMBER-AVERAGE MW[J]. Chinese Journal of Applied Chemistry, ;1989, 6(2): 56-59. shu

CALIBRATION OF SEC COLUMN USNG MORE THAN TWO POLYDISPERSE POLYMER STANDARDS WITH KNOWN NUMBER-AVERAGE MW

He Qijian ,
Meng Diya

1.
Wuhan Chemical Industry Reseach Institute

Received Date: 26 May 1988
Available Online: 1 September 1988

For the lincar calibration of the monodisperse polymer species using more than two polydisperse standards with known number-average MW, an effective and fast one-variable approach is deseribed. The equation ln M=A-BV containing only one variable B can be solved by the Newton's iteractive method, and the value of A is determined. The SEC (size exclusion chromatography) data of the characterized polyurethane samples were corrected for the chromatographic spreading and then used to demonstrate this computational procedure. The deviations of the number-average MW caculated by SEC from the results by osmotic msthed are acceptable.
- Size exclusion chromatography,
- Calibration,
- Polydisperse polymer standards,
- Number-average MW
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