MICROSTRUCTURE DETERMINATION OF ACRYLONITRILE BUTYL METHACRYLATE COPOLYMERS USING C-13 NMR-SPECTROSCOPY

被引:0
|
作者
KAPUR, GS [1 ]
BRAR, AS [1 ]
机构
[1] INDIAN INST TECHNOL,DEPT CHEM,NEW DELHI 110016,INDIA
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中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Acrylonitrile/butyl methacrylate (A/B) copolymers were prepared in bulk with different comonomer feed ratios. The copolymer composition obtained from the total nitrogen content was used for calculating the reactivity ratios. Information about sequence distributions was obtained from C-13 NMR spectroscopy. The relative amounts of A- and B-centred triads were evaluated by using nitrile (-CN) and carbonyl (-CO) carbon resonances, respectively, and have been found to be in a good agreement with those expected theoretically.
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页码:2733 / 2739
页数:7
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