Echevskaya, L. G. ; Mohandas, T. P. ; Bukatov, G. D. ; Zakharov, V. A. ; Sehra, J. C. ; Sivaram, S. (1993) Effect of phenyltriethoxysilane as external donor on the microstructure of ethylene-propylene copolymers Polymer Bulletin, 31 (1). pp. 69-74. ISSN 0170-0839
Full text not available from this repository.
Official URL: http://www.springerlink.com/content/r41kr12503055v...
Related URL: http://dx.doi.org/10.1007/BF00298766
Abstract
The effect of an external electron donor, namely, phenyltriethoxysilane (PES) on the compositional heterogeneity and the microstructure of ethylene-propylene copolymers prepared using a titanium-magnesium catalyst has been investigated. Addition of PES causes an increase in the average sequence length of ethylene and propylene. The products of reactivity ratios of ethylene and propylene indicate that the copolymer is blocky in nature. The external donor produces a propylene sequence in the copolymer which is richer in mmmm pentads.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer. |
| ID Code: | 48498 |
| Deposited On: | 14 Jul 2011 10:15 |
| Last Modified: | 14 Jul 2011 10:15 |
Repository Staff Only: item control page
