C-13 NMR INVESTIGATION OF LOCAL DYNAMICS IN COMPATIBLE POLYMER BLENDS

被引：59

作者：

LEMENESTREL, C ^{[1
]}

KENWRIGHT, AM ^{[1
]}

SERGOT, P ^{[1
]}

LAUPRETRE, F ^{[1
]}

MONNERIE, L ^{[1
]}

机构：

[1] ECOLE SUPER PHYS & CHIM IND,CNRS,PHYSICO-CHIM STRUCT & MACROMOLEC LAB,10 RUE VAUQUELIN,F-75231 PARIS 05,FRANCE

来源：

MACROMOLECULES | 1992年 / 25卷 / 12期

关键词：

D O I：

10.1021/ma00038a003

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Compatible blends of polystyrene and poly(vinyl methyl ether) have been studied by high-resolution solid-state C-13 NMR. Line widths and spin-lattice relaxation times in the rotating frame have been measured for different resonances as a function of both temperature and blend composition. Results thus obtained have shown the existence of local chain motions with different frequencies and temperature dependences for the two polymers. By varying the blend composition, it has been possible to investigate the influence of intermolecular interactions on the local chain dynamics of both components.

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页码：3020 / 3026

页数：7

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