Sequence distribution of the methyl methacrylate ethyl acrylate copolymer by C-13 nmr spectroscopy

被引：32

作者：

Nguyen, G

Nicole, D

Swistek, M

Matlengiewicz, M

Wiegert, B

机构：

[1] UNIV NANCY 1,LAB ETUD SYST ORGAN & COLLOIDAUX,UA CNRS 406,F-54506 VANDOEUVRE NANCY,FRANCE

[2] POLISH ACAD SCI,INST COAL CHEM,PL-44100 GLIWICE,POLAND

[3] ELF ATOCHEM,CTR RECH,F-57501 ST AVOLD,FRANCE

来源：

POLYMER | 1997年 / 38卷 / 14期

关键词：

PMMA/PEA; C-13; nmr; microstructure;

D O I：

10.1016/S0032-3861(96)00926-3

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A method for characterizing triad and pentad distribution by C-13 n.m.r. spectroscopy has been developed and applied for an acrylate-methacrylate copolymer for which the chemical shifts of the homopolymers were sufficiently separated to observe mixed sequences up to pentads. Calculation of the intensity was performed applying Markov-Bernoulli statistics while the chemical shift for each sequence was calculated by a separately developed incremental method. Based on these data, the cabonyl signal was simulated yielding very good agreement at the triad level and satisfactory agreement at the pentad level. (C) 1997 Elsevier Science Ltd.

引用

页码：3455 / 3461

页数：7

共 16 条

[1] GENERAL-ANALYSIS OF THE C-13 NUCLEAR MAGNETIC-RESONANCE SPECTRA OF VINYL COPOLYMERS BY THE SPECTRAL SIMULATION APPROACH [J].