THE CHAIN STRUCTURE OF 1,2-POLYBUTADIENES PREPARED WITH MOLYBDENUM CATALYST SYSTEMS

NI Shaoru; ZHOU Zinan; TANG Xueming

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THE CHAIN STRUCTURE OF 1,2-POLYBUTADIENES PREPARED WITH MOLYBDENUM CATALYST SYSTEMS

Papers | Updated：2021-06-21

- THE CHAIN STRUCTURE OF 1,2-POLYBUTADIENES PREPARED WITH MOLYBDENUM CATALYST SYSTEMS
- Vol. 1, Issue 2, Pages: 101-107(1983)
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- Published：20 November 1983
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NI Shaoru, ZHOU Zinan, TANG Xueming. THE CHAIN STRUCTURE OF 1,2-POLYBUTADIENES PREPARED WITH MOLYBDENUM CATALYST SYSTEMS[J]. 1983, 1(2): 101-107.
DOI：

NI Shaoru, ZHOU Zinan, TANG Xueming. THE CHAIN STRUCTURE OF 1,2-POLYBUTADIENES PREPARED WITH MOLYBDENUM CATALYST SYSTEMS[J]. 1983, 1(2): 101-107. DOI：

摘要

The chain structure of 1

2-polybutadienes prepared with molybdenum catalyst systems has been studied by IR

13C-NMR and Tg method

and the method to regulate the chain structure investigated. It was found that some polar additives

e. g.

allyl halides

are able to regulate not only the content of 1

2-units in the polymer

but also its configuration and sequence distribution. Attempt has been made to estimate the sequence length of stereo-isomers of 1

2-units by statistical theory.

Abstract

The chain structure of 1

2-polybutadienes prepared with molybdenum catalyst systems has been studied by IR

13C-NMR and Tg method

and the method to regulate the chain structure investigated. It was found that some polar additives

e. g.

allyl halides

are able to regulate not only the content of 1

2-units in the polymer

but also its configuration and sequence distribution. Attempt has been made to estimate the sequence length of stereo-isomers of 1

2-units by statistical theory.

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