Effect of Phenyltriethoxysilane as External Donor on the Microstructure of Ethylene-Propylene Copolymers Full article
| Journal |
Polymer Bulletin
ISSN: 0170-0839 , E-ISSN: 1436-2449 |
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| Output data | Year: 1993, Volume: 31, Number: 1, Pages: 69-74 Pages count : 6 DOI: 10.1007/BF00298766 | ||||
| Tags | TITANIUM-MAGNESIUM CATALYSTS; ZIEGLER-NATTA CATALYSTS; POLYMERIZATION; STEREOSPECIFICITY | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Department of Science and Technology |
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.
Cite:
Echevskaya L.G.
, Mohandas T.P.
, Bukatov G.D.
, Zakharov V.A.
, Sehra J.C.
, Sivaram S.
Effect of Phenyltriethoxysilane as External Donor on the Microstructure of Ethylene-Propylene Copolymers
Polymer Bulletin. 1993. V.31. N1. P.69-74. DOI: 10.1007/BF00298766 WOS Scopus РИНЦ ANCAN OpenAlex
Effect of Phenyltriethoxysilane as External Donor on the Microstructure of Ethylene-Propylene Copolymers
Polymer Bulletin. 1993. V.31. N1. P.69-74. DOI: 10.1007/BF00298766 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Accepted: | May 6, 1993 |
| Published print: | Jul 1, 1993 |
Identifiers:
| Web of science: | WOS:A1993LN50600011 |
| Scopus: | 2-s2.0-0344828180 |
| Elibrary: | 31106312 |
| Chemical Abstracts: | 1993:604252 |
| Chemical Abstracts (print): | 119:204252 |
| OpenAlex: | W2050879162 |