STUDY OF THE MICROSTRUCTURES OF PHENYL AND 4-FLUOROPHENYL POLYACRYLATES BY H-1 AND C-13 NMR-SPECTROSCOPY

被引:2
|
作者
VAZQUEZ, B
GURRUCHAGA, M
GONI, I
NARVARTE, E
ROMAN, JS
机构
[1] CSIC,INST CIENCIA & TECNOL POLIMEROS,E-28006 MADRID,SPAIN
[2] FAC QUIM SAN SEBASTIAN,DEPT CIENCIA & TECNOL POLIMEROS,E-20080 SAN SEBASTIAN,SPAIN
关键词
POLYACRYLATES; MICROSTRUCTURE; NMR;
D O I
10.1016/0032-3861(95)92017-9
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 microstructures of phenyl and 4-fluorophenyl polyacrylates were studied by 500 MHz H-1 and 125 MHz C-13 n.m.r. spectroscopy. The isotacticity parameters of both polyacrylates were calculated from the H-1 n.m.r. spectra, giving the values P-m = 0.44 for poly(phenyl acrylate) and P-m = 0.48 for poly(4-fluorophenyl acrylate). The C-13 n.m.r. spectra recorded in deuterated benzene showed well-resolved signals for carbonyl carbon, methine carbon and methylene carbon. The assignments were made on the basis of Bernoullian statistics, with good agreement between the experimental and calculated values for both polyacrylates.
引用
收藏
页码:3467 / 3472
页数:6
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