Study by 1H NMR of the concentration of monomer-units on interface polymer grafted on silica using magic angle spinning and relaxation techniques.
Study by 1H NMR of the concentration of monomer-units on interface polymer grafted on silica using magic angle spinning and relaxation techniques.
复制标题
使用魔角旋转和松弛技术，通过 1 H NMR 研究接枝在二氧化硅上的界面聚合物上单体单元的浓度。
DOI：
10.1006/jcis.2002.8507
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发表时间：
2002
影响因子：
9.9
通讯作者：
H. Bouchriha
中科院分区：
文献类型：
--
作者：
T. Tajouri;H. Bouchriha
通过 1H 和 13C 磁共振研究了接枝在二氧化硅上的聚环氧乙烷的链段运动。评估界面上的局部单体单元浓度。使用两种独立的技术，即磁弛豫和魔角旋转，并且对于描述表面上单体单元浓度的物理参数给出了良好的一致性。这种行为已被研究为链分子量的函数，并且每次也作为温度的函数。
The segmental motion of poly(ethylene oxide) grafted on silica has been investigated by 1H and 13C magnetic resonance. The local monomer units concentration on an interface is evaluated. Two independent techniques, namely magnetic relaxation and magic angle spinning, are used and give a good agreement for the physical parameters describing the monomer units concentration on the surface. This behavior has been studied as a function of molecular weight of the chains, and each time also as a function of temperature.