DETERMINATION OF BRANCHING DISTRIBUTION IN HIGH cis-1,4-POLYBUTADIENE BY GPC AND AUTOMATIC VISCOMETRY*

SUN Benhui; JIN Riguang

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DETERMINATION OF BRANCHING DISTRIBUTION IN HIGH cis-1,4-POLYBUTADIENE BY GPC AND AUTOMATIC VISCOMETRY*

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- DETERMINATION OF BRANCHING DISTRIBUTION IN HIGH cis-1,4-POLYBUTADIENE BY GPC AND AUTOMATIC VISCOMETRY*
- Vol. 2, Issue 2, Pages: 138-145(1984)
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- Published：20 December 1984
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SUN Benhui, JIN Riguang. DETERMINATION OF BRANCHING DISTRIBUTION IN HIGH cis-1,4-POLYBUTADIENE BY GPC AND AUTOMATIC VISCOMETRY*[J]. 1984, 2(2): 138-145.
DOI：

SUN Benhui, JIN Riguang. DETERMINATION OF BRANCHING DISTRIBUTION IN HIGH cis-1,4-POLYBUTADIENE BY GPC AND AUTOMATIC VISCOMETRY*[J]. 1984, 2(2): 138-145. DOI：

摘要

Based on the methods reported by Ambler and Kraus

a method has been developed for the determination of long-chain branching distribution in polymers by the combined use of GPC and intrinsic viscosity data of polymer fractions. In this method

λi

the weight percentage of polymer that is branched

etc. can be used simultaneously to characterize the distribution

degree and content of branching in polymers. Some relations between molecular weight polydispersity and branching polydispersity in Nickel-based high cis-1

4-polybutadiene samples are discussed.It was found that the number of long branchedλ per unit molecular weight is a function of molecular weight and all of the samples are highly branched at a molecular weight of about 106.

Abstract

Based on the methods reported by Ambler and Kraus

a method has been developed for the determination of long-chain branching distribution in polymers by the combined use of GPC and intrinsic viscosity data of polymer fractions. In this method

λi

the weight percentage of polymer that is branched

etc. can be used simultaneously to characterize the distribution

degree and content of branching in polymers. Some relations between molecular weight polydispersity and branching polydispersity in Nickel-based high cis-1

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