Please use this identifier to cite or link to this item:
http://nopr.niscair.res.in/handle/123456789/46365| Title: | Microstructure determination of styrene-acrylonitrile copolymers by 13C NMR spectroscopy |
| Authors: | Brar, A S Kapur, G S Sekhar, MS |
| Issue Date: | May-1990 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Styrene-acrylonitrile (S-A) copolymers having different proportions of the monomers have been bulk copolymerised at 70°C,using benzoyl peroxide as the initiator. The reactivity ratios have been calculated using the Kelen-Tudos method. A detailed study of the microstructure of the copolymers has been carried out using 13C NMR spectroscopy. The experimental styrene-and acrylonitrile-centered triad sequence distributions have been determined by using aromatic (C1) carbon and nitrile (- CN) carbon resonances, respectively. These results are found to be in good agreement with those calculated theoretically using reactivity ratios1 [Harwood H J, J polym Sci, 25 (1968) 37]. |
| Page(s): | 425-430 |
| URI: | http://nopr.niscair.res.in/handle/123456789/46365 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.29A(05) [May 1990] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 29A(5) 425-430.pdf | 357.42 kB | Adobe PDF | View/Open |
Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.