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KMID : 1059519870310030287
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Journal of the Korean Chemical Society
1987 Volume.31 No. 3 p.287 ~ p.291
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Analysis of Trifluoroacetyl group in PVA-polyvinyltrifluoroacetate Copolymer by the Pyrolysis Gas Chromatography
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Chae Hee-Ju
Jo Seong-Mu
Lyu Hak-Soo
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Abstract
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The composite mole fraction of monomers in PVA-PVFAc copolymer could be calculated from the analysis of trifluoroacetyl group by the pyrolysis gas chromatography without breaking of C-F bonds in polymer. A linearity between trifluoroacetyl peak areas in pyrogram and sample weights was obtained within the range below 3mg. The data of trifluoroacetyl contents derived from gas chromatogram of copolymers with various D.S. were in good agreement with results by the Specific Ionmeter.
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