Effects of the Structure of External Alkoxy Silane Donor in High Activity Ziegler-Natta Catalyst on the Microstructure of Polypropylene

Mika Härkönen; Jukka V. Seppälä; Taito Väänänen

doi:10.1016/S0167-2991(08)61618-3

Effects of the Structure of External Alkoxy Silane Donor in High Activity Ziegler-Natta Catalyst on the Microstructure of Polypropylene

Mika Härkönen, Jukka V. Seppälä, Taito Väänänen

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Abstract

Correlations were sought between the structure of external alkoxy silane donors and the microstructure of the obtained polymer chain. Propylene was polymerized in liquid monomer with a heterogeneous high activity Ziegler-Natta catalyst. Fifteen different alkoxy silanes of structure R _nSi(OR′) _4-n, where n=1-3, R = Ph or alkyl and R′ = C _1-3 alkyl, were used as external donors. Polymers were fractionated by boiling heptane extraction. Microstructures of the polymers were studied by means of ¹³C NMR.

Original language	English
Pages (from-to)	87-105
Number of pages	19
Journal	Studies in Surface Science and Catalysis
Volume	56
Issue number	C
DOIs	https://doi.org/10.1016/S0167-2991(08)61618-3
Publication status	Published - 1990
MoE publication type	A1 Journal article-refereed

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title = "Effects of the Structure of External Alkoxy Silane Donor in High Activity Ziegler-Natta Catalyst on the Microstructure of Polypropylene",

abstract = "Correlations were sought between the structure of external alkoxy silane donors and the microstructure of the obtained polymer chain. Propylene was polymerized in liquid monomer with a heterogeneous high activity Ziegler-Natta catalyst. Fifteen different alkoxy silanes of structure R nSi(OR′) 4-n, where n=1-3, R = Ph or alkyl and R′ = C 1-3 alkyl, were used as external donors. Polymers were fractionated by boiling heptane extraction. Microstructures of the polymers were studied by means of 13C NMR.",

author = "Mika H{\"a}rk{\"o}nen and Sepp{\"a}l{\"a}, {Jukka V.} and Taito V{\"a}{\"a}n{\"a}nen",

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T1 - Effects of the Structure of External Alkoxy Silane Donor in High Activity Ziegler-Natta Catalyst on the Microstructure of Polypropylene

AU - Härkönen, Mika

AU - Seppälä, Jukka V.

AU - Väänänen, Taito

PY - 1990

Y1 - 1990

N2 - Correlations were sought between the structure of external alkoxy silane donors and the microstructure of the obtained polymer chain. Propylene was polymerized in liquid monomer with a heterogeneous high activity Ziegler-Natta catalyst. Fifteen different alkoxy silanes of structure R nSi(OR′) 4-n, where n=1-3, R = Ph or alkyl and R′ = C 1-3 alkyl, were used as external donors. Polymers were fractionated by boiling heptane extraction. Microstructures of the polymers were studied by means of 13C NMR.

AB - Correlations were sought between the structure of external alkoxy silane donors and the microstructure of the obtained polymer chain. Propylene was polymerized in liquid monomer with a heterogeneous high activity Ziegler-Natta catalyst. Fifteen different alkoxy silanes of structure R nSi(OR′) 4-n, where n=1-3, R = Ph or alkyl and R′ = C 1-3 alkyl, were used as external donors. Polymers were fractionated by boiling heptane extraction. Microstructures of the polymers were studied by means of 13C NMR.

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U2 - 10.1016/S0167-2991(08)61618-3

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JF - Studies in Surface Science and Catalysis

SN - 0167-2991

IS - C

ER -

Effects of the Structure of External Alkoxy Silane Donor in High Activity Ziegler-Natta Catalyst on the Microstructure of Polypropylene

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