Polymerization of Vinyl Compounds by High Energy Radiation:IV. Effects of Dose Rate on Rates and Degrees of Polymerization
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概要
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The rates and degrees of r-ray induced polymerization of methyl methacrylate (MMA), vinyl acetate (VAc) and styrene (St) are measured. Dose rates used for MMA and VAc are 0.36×10<SUP>4</SUP>r/hr to 71.0×10<SUP>4</SUP>r/hr while for St 0.36×10<SUP>4</SUP>r/hr to 4.4×10<SUP>4</SUP>r/hr. The polymerization rates of these monomers are found to be proportional to the square root of radiation intensities at the range of 0.36×10<SUP>4</SUP>r/hr to 4.4×10<SUP>4</SUP>r/hr, and slightly decreased above 36.0×10<SUP>4</SUP>r/hr to 71.0×10<SUP>4</SUP>r/hr. Linear relations are obtained between degrees of polymerization and does rates in the range of 0.36×10<SUP>4</SUP>r/hr to 4.4×10<SUP>4</SUP>r/hr, but at higher intensities it is not in the case, degrees of polymerization decrease to lower values
- 公益社団法人 高分子学会の論文
公益社団法人 高分子学会 | 論文
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- 高分子科学最近の進歩--メルトレオロジ-(伸長粘度)
- 高分子系の相分離--特にポリマ-ブレンドについて
- 導電性高分子の磁気緩和--NMRT-1〓1の周波数依存性
- 多機能性高分子の合成 (化学修飾による多機能性高分子)