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Hydrolysis degradation of polycarbonate under microwave irradiation by using design of experiment software

机译:实验软件设计在微波辐射下水解降解聚碳酸酯

摘要

Depolymerization of polycarbonate (PC) is one of the important issues in environment especially in industry field. In this project degradation of PC is done by employing the hydrolysis method using microwave irradiation. PC degradation was carried out under constant amount of tetrahydrofuran (THF) as co-solvent and by using various amount of water (H2O) as main solvent and different concentration of sodium hydroxide (NaOH) as catalysts in a microwave reactor for low power and different time. The solid main product bisphenol A (BPA) was analyzed by FTIR and HPLC. It was found that PC degradation is favored by increasing amount of H2O, concentration of NaOH and time duration of process. Complete depolymerization was found to occur in 12.5 min when the amount of water was 3.5 g and concentration of NaOH was 0.5 g at 110°C.
机译:聚碳酸酯(PC)的解聚是环境特别是工业领域中的重要问题之一。在该项目中,通过采用微波辐射的水解方法完成PC的降解。在低功率和不同功率的微波反应器中,PC降解是在恒定量的四氢呋喃(THF)作为共溶剂,使用不同量的水(H2O)作为主要溶剂和不同浓度的氢氧化钠(NaOH)作为催化剂的条件下进行的。时间。通过FTIR和HPLC分析固体主要产物双酚A(BPA)。发现通过增加H 2 O的量,NaOH的浓度和过程的持续时间来促进PC降解。当在110℃下水的量为3.5g并且NaOH的浓度为0.5g时,发现在12.5min内发生完全解聚。

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