THE MOLECULAR WEIGHT AND ITS DISTRIBUTION OF 1, 2-POLYBUTADIENES PREPARED WITH MOLYBDENUM CATALYST SYSTEMS*

NI Shaoru; TANG Xuerning

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THE MOLECULAR WEIGHT AND ITS DISTRIBUTION OF 1, 2-POLYBUTADIENES PREPARED WITH MOLYBDENUM CATALYST SYSTEMS*

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- THE MOLECULAR WEIGHT AND ITS DISTRIBUTION OF 1, 2-POLYBUTADIENES PREPARED WITH MOLYBDENUM CATALYST SYSTEMS*
- Vol. 2, Issue 1, Pages: 78-81(1984)
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- Published：20 July 1984
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NI Shaoru, TANG Xuerning. THE MOLECULAR WEIGHT AND ITS DISTRIBUTION OF 1, 2-POLYBUTADIENES PREPARED WITH MOLYBDENUM CATALYST SYSTEMS*[J]. 1984, 2(1): 78-81.
DOI：

NI Shaoru, TANG Xuerning. THE MOLECULAR WEIGHT AND ITS DISTRIBUTION OF 1, 2-POLYBUTADIENES PREPARED WITH MOLYBDENUM CATALYST SYSTEMS*[J]. 1984, 2(1): 78-81. DOI：

摘要

The study on the molecular weight and its distribution of 1

2-polybutadienes prepared with MoCl4OR-i-Bu2AlOR' catalyst systems has been carded out by viscosity and GPC methods. 1

2-Polybutadienes with Mw/Mn=1.2-2.0can be obtained with these catalyst systems at 30—70℃. There is a linear relation between theMw/Mn and the polymerization temperature. It was found by extrapolation that these catalyst systems may possibly initiate a living polymerization at the temperature near 18℃. The molecular weight of the polymers can be regulated either by polymerization temperature or by adding polar compounds such as allyl halides.

Abstract

The study on the molecular weight and its distribution of 1

2-polybutadienes prepared with MoCl4OR-i-Bu2AlOR' catalyst systems has been carded out by viscosity and GPC methods. 1

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