摘要
研究了在SC -CO2 中不同聚合物对樟脑的吸附 ,发现聚氨酯、乙烯 -醋酸乙烯酯共聚物等非晶型高分子的吸附效果优于聚乙烯等结晶型高分子。继而以聚氨酯为对象 ,分别讨论了实验温度、压力、吸附时间和不同共溶剂分子对其吸附结果的影响。结果表明 ,实验温度越高 ,吸附时间越长 ,则聚氨酯对樟脑的吸附量越大。当吸附时间相同时 ,吸附量随压力增加先增后减 ,在临界压力附近会出现一极大值。在共溶剂的使用中 。
In this paper, camphor molecules were impregnated respectively into different polymers in supercritical carbon dioxide. The results show that polyurethane, ethylene vinyl acetate copolymer and acrylonitrile butadiene styrene terpolymer adsorbed more camphor molecules than the others. The effects of experimental temperature, pressure, adsorption time and different cosolvents on adsorption quantity were also investigated.
出处
《功能高分子学报》
CAS
CSCD
2001年第2期181-184,共4页
Journal of Functional Polymers
