Acrylonitrile and glycidyl methacrylate copolymers: Nuclear magnetic resonance characterization

被引:35
作者
Brar, AS [1 ]
Dutta, K [1 ]
机构
[1] Indian Inst Technol, Dept Chem, New Delhi 110016, India
关键词
D O I
10.1021/ma980184q
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Copolymers containing acrylonitrile (A) and glycidyl methacrylate (G) units of different compositions were synthesized by free radical solution polymerization. The reactivity ratios were estimated by Kelen Tudos and nonlinear error in variable methods. The triad sequence distributions in terms of A- and G-centered triads have been obtained from C-13{H-1} NMR spectroscopy. The complete spectral assignments in terms of compositional and configurational sequences of the overlapping carbon and proton spectra of these copolymers were done with the help of distortionless enhancement by polarization transfer (DEPT), two-dimensional proton-detected heteronuclear correlation (inverse-HETCOR), and total correlated spectroscopy (TOCSY) experiments. The Monte Carlo simulation was used to study the effect of the fractional conversion on the triad fractions.
引用
收藏
页码:4695 / 4702
页数:8
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