Pyrolysis-Gas Chromatographic Analysis of Vinylchloride-Vinylacetate Copolymer
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概要
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Pyrolysis-gas chromatography was applied to rapid and precise determination of vinylchloride-vinylacetate copolymer by use of the yields of acetic acid and of benzene. The separation column was filled with packing of polymer beads (porapak Q) which are free from deterioration by hydrogen chloride evolved during the thermal degradation of copolymers. Relative yields of acetic acid, which originated from the side chains of the polymer and corresponded to vinylacetate content, and of benzene, formed mainly from successive vinylchloride units, were calculated from the relative peak area appearing on the pyrogram by making relative sensitivity correction for the flame ionization detector. By this method the composition of copolymer can be determined using 0.5–2.0 mg of sample with mean absolute deviation 0.5–0.4 wt%, with the yields of acetic acid and of benzene.
- 公益社団法人 日本化学会の論文
著者
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Tsuge Shin
Department Of Applied Chemistry Graduate School Of Engineering Nagoya University
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Takeuchi Tsugio
Department of Synthetic Chemistry, Faculty of Engineering, Nagoya University
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Okumoto Tadaoki
Engineering Department, Nagoya Rubber Co., Ltd.
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