PREPARATION AND CHARACTERIZATION OF cis-,4-POLYBUTADIENE CONTAINING A FRACTION OF trans-1,4-POLYBUTADIENE*

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- PREPARATION AND CHARACTERIZATION OF cis-,4-POLYBUTADIENE CONTAINING A FRACTION OF trans-1,4-POLYBUTADIENE*
- PREPARATION AND CHARACTERIZATION OF cis-,4-POLYBUTADIENE CONTAINING A FRACTION OF trans-1,4-POLYBUTADIENE*
- 高分子科学（英文版） 1984年2卷第1期页码：12-18
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- 纸质出版：1984-07-20
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HU Zhenya, LI Shuquan, LIN Yunqing. PREPARATION AND CHARACTERIZATION OF cis-,4-POLYBUTADIENE CONTAINING A FRACTION OF trans-1,4-POLYBUTADIENE*[J]. 高分子科学（英文版）, 1984,2(1):12-18.

HU Zhenya, LI Shuquan, LIN Yunqing. PREPARATION AND CHARACTERIZATION OF cis-,4-POLYBUTADIENE CONTAINING A FRACTION OF trans-1,4-POLYBUTADIENE*[J]. 1984, 2(1): 12-18.
HU Zhenya, LI Shuquan, LIN Yunqing. PREPARATION AND CHARACTERIZATION OF cis-,4-POLYBUTADIENE CONTAINING A FRACTION OF trans-1,4-POLYBUTADIENE*[J]. 高分子科学（英文版）, 1984,2(1):12-18. DOI：

HU Zhenya, LI Shuquan, LIN Yunqing. PREPARATION AND CHARACTERIZATION OF cis-,4-POLYBUTADIENE CONTAINING A FRACTION OF trans-1,4-POLYBUTADIENE*[J]. 1984, 2(1): 12-18. DOI：

Polymerization of butadiene catalysed first with V(acac)3-Al(i-Bu)2Cl

then with Co(acac)3-H2O-Al(i-Bu)2Cl has been studied. The polymer obtained was identified to be a new variety of cis-1

4-polybutadiene which contained a fraction of trans-1

4-polybutadiene chemically bonded to the cis-1

4-polybutadiene chains. Its molecular weight and trans-1

4 content can be regulated by varying the catalyst composition and concentration as well as other polymerization conditions. The trans-1

4 fraction

although it presents only in 9—16% forms a crystalline phase in the matrix at room temperature and facilitates the crystallization of the polymer.

Polymerization of butadiene catalysed first with V(acac)3-Al(i-Bu)2Cl

then with Co(acac)3-H2O-Al(i-Bu)2Cl has been studied. The polymer obtained was identified to be a new variety of cis-1

4-polybutadiene which contained a fraction of trans-1

4-polybutadiene chemically bonded to the cis-1

4-polybutadiene chains. Its molecular weight and trans-1

4 content can be regulated by varying the catalyst composition and concentration as well as other polymerization conditions. The trans-1

4 fraction

although it presents only in 9—16% forms a crystalline phase in the matrix at room temperature and facilitates the crystallization of the polymer.

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