The structure was verified by 1 H - NMR, GPC and end group titration techniques.

通过核磁共振氢谱(1H-NMR) 、 凝胶渗透色谱(GPC) 、端羟基滴定等方法,研究了所合成的三嵌段共聚物的结构.

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The trifluoromethoxy end - group favors for the formation of smectic phase.

三氟甲氧基有利于近晶相.

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And the IR analysis shows that silicone resin possesses hydroxyl end group.

红外光谱(IR)显示,合成的硅树脂含有端羟基.

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The results show that It is a high speed, convenient and accurate method end - group analytical method.

结果表明核磁共振内标法求聚氧丙烯甘油醚类化合物数均分子量快速, 方便,准确.

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The mechanism was proposed and confirmed by the end group analysis of the polymer.

对此作用提出可能的机理,并从端基结构等加以验证.

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