接枝点

用IR、DTA和NMR分析了共聚物的结构，在共聚物的红外光谱中未发现PAM分子中的氢原子形成接枝点的迹象，所得产物为嵌段共聚物。

As the structure of the copolymer was identified by IR , DTA and NMR , the hydrogen atoms in polyacrylamide remain unchanged , and the copolymer prepared is a block copolymer .

运用SCFT研究这种体系难点在于如何处理接枝点出数值的不连续和不稳定性。

The difficulty lies in the numerical discontinuity and instability at the grafting region .

以羟基为接枝点的已内酯阴离子接枝聚合

Study on the Anionic Graft Polymerization of ε - caprolactone onto Substrates Though Hydroxy Groups

实际上，大多数高分子刷的接枝点位置是不能移动的，即固体刷更符合实际情况。

It becomes even more debatable for real situations in which the polymer brushes bear closer resemblance to a solid brush , where the grafting sites are immobile .

在试样1的动态力学性能谱上一40℃左右有一个相应于接枝点的分子松驰过程，而另外三个试样则检测不到这一松驰过程。

A relaxation process associated with the grafting molecular motion was observed at & 40 ℃ on the dynamic mechanical relaxation spectra of sample 1 , while there was no such a process on the spectra of the other three samples .

将POE作为接枝机体树脂，利用其支化度比较高、容易形成接枝点来获得较高的接枝率；

In the grafting reaction , the high graft yield is gained when POE is the grafting polymer , by using its structural properties such as higher branched degree and bigger side-chain .