In order to obtain a satisfactory gating property of the membrane, the grafting yield must be kept in a proper range. 为了获得预期的开关性能，必须将膜的接枝率控制在适当的范围。
It was shown that the modified membranes with higher grafting rate expressed better anti-fouling ability in the ultrafiltration of protein solutions. 实验结果表明，随着接枝率的提高，改性聚砜膜抗蛋白质吸附污染的能力显著增强。
