用接枝率和接枝效率衡量接枝效果。
The grafting result was measured by grafting ratio and grafting efficiency.
用接枝率和接枝效率衡量接枝效果。
Approach to grafting effect of emulsion graft polymeriztion;
讨论了原料配比和反应时间对共聚物接枝率(G)、 接枝效率(E)和单体转化率(C)的影响。
The effect of the molar ratio of glycolide to starch and reaction time on the grafting degree, grafting efficiency and monomer conversion was discussed.
试验结果表明提高反应温度和选择适当溶剂可以使链转移常数增大,有利于接枝反应的进行,提高接枝效率。
The results show that chain transfer constant depends on reaction temperature and solvent. High temperature favors graft copolymerization, and enhances the efficiency of grafting.
结果表明,采用以过硫酸铵亚硫酸氢钠为引发剂的产率、接枝率、接枝效率分别达到64.04%、73.82%、86.43%。
The result shows that the yield, the graft yield and the graft efficiency are 64.04%, 73.82%, and 86.43%, respectively.
产率可达90%以上,接枝效率80%以上,高沸醇木质素和丙烯酰胺的接枝效果良好,进一步证明高沸醇木质素具有较高的化学活性。
The yield and graft efficiency were respectively obtained more than 90% and 80%. The fact verified that HBS lignin has better chemical activity.
获得了高接枝效率和高接枝百分比的产物,测定了有关因素对接枝参数的影响,对接枝共聚物用红外光谱进行了表征,并对接枝共聚机理进行了探讨。
The effect of rarious factors on the graft parameters has been determined. The structure of the grafted fibres was characterized by means of IR and SEM. The initiation mechanism was proposed.
获得了高接枝效率和高接枝百分比的产物,测定了有关因素对接枝参数的影响,对接枝共聚物用红外光谱进行了表征,并对接枝共聚机理进行了探讨。
The effect of rarious factors on the graft parameters has been determined. The structure of the grafted fibres was characterized by means of IR and SEM. The initiation mechanism was proposed.
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