Studies on the Synthesis of Polycarbonates. II:Purity and Purification of the Reactants
スポンサーリンク
概要
- 論文の詳細を見る
The refining methods and purities of bisphenol A, methylene chloride and phosgene as the raw materials for polycarbonate have been investigated in relation to condensation-polymerization reaction. For obtaining the colorless, transparent high polymer easy for washing after the completion of the reaction with good yield, the following procedures are necessary:1) Bisphenol A should be recrystallized from solvent, such as xylene, to white and, highly pure form.2) Methylene chloride should not contain large amount of molecular weight modifier such as methanol.3) Highly pure phosgene must be used with the lesat amount of chlorine and hydrochloric acid.
- 社団法人 有機合成化学協会の論文
著者
関連論文
- ポリカーボネートの合成に関する研究-4-
- Studies on the Synthesis of Polycabonates. III:Phosgenation of Bisphenol A
- Simultaneous Syntheses of Aromatic Carboxylic Acids and Phenols. III:Air oxidation of p-methylbenzophenone in Liquid Phase
- Simultaneous Syntheses of Aromatic Carboxylic Acid and Phenols. II:Syntheses of Benzophenones
- ポリカーボネートの合成に関する研究-7-
- 芳香族カルボン酸とフェノール類の同時合成法-4-
- Studies on the Synthesis of Polycarbonates. II:Purity and Purification of the Reactants
- 芳香族カルボン酸とフェノール類の同時合成法-5-
- Studies on the Synthesis of Polycarbonates. I,:Synthesis of Bisphenol A, B,