Location of terminal groups of dendrimers in the solid state by rotational-echo double-resonance NMR

被引：33

作者：

Kao, HM ^{[1
]}

Stefanescu, AD ^{[1
]}

Wooley, KL ^{[1
]}

Schaefer, J ^{[1
]}

机构：

[1] Washington Univ, Dept Chem, St Louis, MO 63130 USA

来源：

MACROMOLECULES | 2000年 / 33卷 / 17期

关键词：

D O I：

10.1021/ma0006124

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The results of 13C-{19F} rotational-echo double-resonance (REDOR) NMR experiments performed on fifth-generation poly(benzyl ether) dendrimers synthesized by convergent methods are presented. Fluorine was used to label the ring-C-1 of the first generation and 13C to label the methylene carbons of either the third or fifth generations. The generational layer is the monomeric repeat-unit layer counted outward from the focal point, the first methylene carbons are considered part of the first generation, so that the dendrimer terminates with the fifth-generation methylene carbons coupled to the chain-end phenyl rings.

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页码：6214 / 6216

页数：3

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