看不见的朋友,不能和他们共聚欢乐,这等于处在半死状态。
The regular variations of the copolymerization rate and the viscosity of copolymer were discussed.共聚合速度和共聚物的比浓粘度呈规律性变化。
The effects of monomer concentration, initiator, reaction temperature and time on copolymerization were studied.考察了单体浓度,引发剂浓度,反应温度和时间等对共聚反应的影响。