You, Hong and Tirrell, David A. (1990) Radical copolymerization of 2-ethylacrylic acid and methacrylic acid. Journal of Polymer Science Part A: Polymer Chemistry, 28 (11). pp. 3155-3163. ISSN 0887-624X. doi:10.1002/pola.1990.080281121. https://resolver.caltech.edu/CaltechAUTHORS:YOUjpsa1990
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Abstract
Copolymers of 2-ethylacrylic acid (EAA) and methacrylic acid (MAA) were prepared in bulk and in N,N-dimethylformamide (DMF). Although precipitation of the copolymers was observed in bulk, the reaction mixtures remained apparently homogeneous in DMF. Best-fit terminal-model reactivity ratios were determined by a nonlinear least squares technique to be r_(MAA) = 1.14 and r_(EAA) = 0.23 in bulk, and r_(MAA) = 1.91 and r_(EAA) = 0.09 in 50% DMF solution. Examination of ^(13)C-NMR spectra provided convincing evidence for the formation of statistical copolymers. Copolymerizations richer in MAA provided copolymers of higher molecular weights.
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| Additional Information: | © 1990 John Wiley & Sons. Received December 12, 1989; Accepted March 7, 1990. This work was supported by U.S. Army Research Office Grant No. DAAL03-88-K-0038. NMR spectra were recorded in the University of Massachusetts NMR Laboratory, which is supported in part by the NSF Materials Research Laboratory at the University. | |||||||||
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| Issue or Number: | 11 | |||||||||
| DOI: | 10.1002/pola.1990.080281121 | |||||||||
| Record Number: | CaltechAUTHORS:YOUjpsa1990 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:YOUjpsa1990 | |||||||||
| Official Citation: | You, H. and Tirrell, D. A. (1990), Radical copolymerization of 2-ethylacrylic acid and methacrylic acid. J. Polym. Sci. A Polym. Chem., 28: 3155–3163. doi: 10.1002/pola.1990.080281121 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 54587 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Anne Hormann | |||||||||
| Deposited On: | 25 Feb 2015 03:51 | |||||||||
| Last Modified: | 10 Nov 2021 20:35 |
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