Polymerization of Vinyl Compounds by High Energy Radiation:VIII. Effect of Salts on γ-ray Induced Emulsion Polymerization
スポンサーリンク
概要
- 論文の詳細を見る
The effect of added salts on the rate of polymerization in r-ray induced emulsion polymerization of methyl methacrylate has been investigated. Polymerization in the presence of nonionic detergents and 0.2mol/<I>l</I> of salts was carried out at 10% monomer concentration. The rate of polymerization was constant until the conversion reached 30%. Beyond 30% conversion the polymerization rate decreased in the order of NaCl>NaOAc>NaBr >Fricke solution>none>NaNO<SUB>3</SUB>. No polymerization occurred in the presence of NaI. The mechanism of these reactions may be partly considered in this report. Maximum rate of polymerization was obtained in the vicinity of 0.2mol/<I>l</I> of NaCl concentration. Usual initiators (potassium persulphate and hydrogen peroxide) increased the rate. In various pH, the rate was constant in the initial stage, but gradually increased in the final stage.
- 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
- 情報の入口--高分子センサ-とトランスデュ-サ- (情報化社会と高分子)
- 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)