Catalyst for propylene polymerization and propylene polymerization or copolymerization reaction method

The invention discloses a catalyst for propylene polymerization and a propylene polymerization or copolymerization reaction method. The catalyst comprises a titanium-containing main catalyst A and a catalyst promoter B, the main catalyst A comprises an alcohol adduct carrier of magnesium halide, tit...

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Hauptverfasser: PENG WEI, GAO YAN, WANG XIA, SONG SAINAN, LIU QIANG, LI GUANGQUAN, ZHOU WENYUAN, YE PENGBO, WANG FUSHAN, MO SUYUN
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creator PENG WEI
GAO YAN
WANG XIA
SONG SAINAN
LIU QIANG
LI GUANGQUAN
ZHOU WENYUAN
YE PENGBO
WANG FUSHAN
MO SUYUN
description The invention discloses a catalyst for propylene polymerization and a propylene polymerization or copolymerization reaction method. The catalyst comprises a titanium-containing main catalyst A and a catalyst promoter B, the main catalyst A comprises an alcohol adduct carrier of magnesium halide, titanium halide and an internal electron donor, the internal electron donor is a diphosphine compound with a molecular skeleton of a thiophene structure as shown in a general formula (I): # imgabs0 #, and R1, R2, R3 and R4 are the same or different and are respectively and independently selected from a hydrogen atom, a straight chain or branched chain alkyl group of C1-C20, a cycloalkyl group of C3-C20, an aryl group of C6-C20, an aralkyl group of C7-C20 and an alkoxy aryl group of C7-C20. The catalyst disclosed by the invention shows relatively high catalytic activity under a high-temperature polymerization condition, and meanwhile, the problem that the isotactic index is relatively low when a high-temperature polyme
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title Catalyst for propylene polymerization and propylene polymerization or copolymerization reaction method
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