重合温度を異にするPolychloropreneの分子量分布について
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概要
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Two samples of polychloroprene which were made by the emulsion polymerization at 10°C and 40°C respectively have been fractionated by the succesive precipitation method from the dilute solution of benzene using methanol as the precipitant.The fractions examined both osmotically and viscometrically in toluene solutions at 30°C.The relationship of Mark-Houwink equations were obtained as respectively.10°C [η]=5.64×10-4Mn0.6340°C [η]=9.73×10-5Mn0.77It was found that the width of distribution function decreased with the increase of polymerization temperature. The parameter for the representation of average width of distribution function were discussed.
- 一般社団法人 日本ゴム協会の論文
一般社団法人 日本ゴム協会 | 論文
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