High-resolution variable-temperature 19F MAS NMR spectroscopy of vinylidene fluoride based fluoropolymers

被引：51

作者：

Isbester, PK

Brandt, JL

Kestner, TA

Munson, EJ

机构：

[1] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA

[2] 3M Co, Specialty Mat Div, St Paul, MN 55144 USA

来源：

MACROMOLECULES | 1998年 / 31卷 / 23期

关键词：

D O I：

10.1021/ma980745d

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Variable-temperature (VT) solid-state F-19 NMR spectroscopy with high-speed magic-angle spinning (MAS) has been used to study copolymers of vinylidene fluoride and hexafluoropropylene and of vinylidene fluoride and chlorotrifluoroethylene, and terpolymers of vinylidene fluoride, tetrafluoroethylene, and hexafluoropropylene. High-resolution spectra were obtained by simultaneously using MAS speeds up to 25 kHz and heating to 250 degrees C. Sufficient resolution was achieved to assign peaks by comparison to results obtained from solution-state NMR studies and to determine the monomer composition of the polymer.

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收藏

页码：8192 / 8200

页数：9

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