- 作者: 楊美惠 ; 周全 ; 林治華
- 作者服務機構: 台灣大學化學系
- 中文摘要: Pure hexaphenylcyclotrisiloxane (P/sub 3/) and octaphenylcyclotetrasiloxane (P/sub 4/) were synthesized with high yields via proper choice of preparation conditions, such as catalysts, solvents and reaction temperatures, from diphenylsilanediol. Up to 98% yield of this pure starting material can be obtained from diphenyldichlorosilane through modifying a known procedure on carefully adjusting the temperature of hydrolysis and washing procedure. This method produced pure P/sub 3/ exclusively with high yield (approximately 90%) in ethanol in the presence of concentrated sulfuric acid as the catalyst at various reaction temperatures. P/sub 4/ was produced exclusively in high yield (approximately 90%) in alcohols in the presence of sodium hydroxide. A method applying HPLC was used to analyze the reaction products quantitatively.
- 英文摘要: --
- 中文關鍵字: Hexaphenylcyclotrisiloxane; Octaphenylcyclotetrasiloxane; Diphenylsilanediol; Synthesis; Reaction Temperature
- 英文關鍵字: 六苯基環三矽氧烷;八苯基環四矽氧烷;二苯矽烷二醇;合成;反應溫度