本人第一次合成聚苯乙烯，参考了一篇文献，具体实验过程如下：The PS nanoparticles were synthesized via a surfactant-free
emulsion polymerization method.10 g of styrene monomer, 0.0831 g of potassium persulfate and 0.005 g of sodium polystyrene
sulfonate were dissolved in 90 mL deionized water with nitrogen bubbled for 30 min. The reaction was kept for 24 h under 70 °C
with 800 rpm of stirring in the atmosphere of nitrogen. The PS nanoparticles were extracted by ethanol from the reaction media at last.
有几个问题请教大家，（1）实验应该用的是机械搅拌，文献的意思是先通氮气30分钟后再在氮气保护下搅拌，30分钟只是用来赶空气还是有别的作
用，如果只是赶空气，只需多置换几次就可以了，是吗？通氮气一定要通到液面以下还是只用把空气抽干净氮气保护？（2）是否需要回流？（3）这种
方法合成出来的聚苯乙烯在乙醇溶液中是碱性，带负离子？ 返回小木虫查看更多