SYNTHESES AND CHARACTERIZATIONS OF HYPERBRANCHED POLYPHENYLENES

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SYNTHESES AND CHARACTERIZATIONS OF HYPERBRANCHED POLYPHENYLENES

Papers | Updated：2021-06-21

- SYNTHESES AND CHARACTERIZATIONS OF HYPERBRANCHED POLYPHENYLENES
- Vol. 22, Issue 5, Pages: 501-503(2004)
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- Published：20 October 2004
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SYNTHESES AND CHARACTERIZATIONS OF HYPERBRANCHED POLYPHENYLENES[J]. 2004, 22(5): 501-503.
DOI：

SYNTHESES AND CHARACTERIZATIONS OF HYPERBRANCHED POLYPHENYLENES[J]. 2004, 22(5): 501-503. DOI：

摘要

New hyperbranched polyphenylenes with high molecular weights are synthesized by the copolycyclotrimerizations of 1

4-diethynylbenzene (I) with phenylacetylene (A)

1-octyne (B)

and 1-dodecyne (C) catalyzed by TaCl5-Ph4Sn. The polymers are completely soluble in common solvents such as toluene

THF

chloroform

and dichloromethane. The polymers are characterized by spectroscopic methods and all of the polymers give satisfactory analysis data corresponding to their expected molecular structures.

Abstract

New hyperbranched polyphenylenes with high molecular weights are synthesized by the copolycyclotrimerizations of 1

4-diethynylbenzene (I) with phenylacetylene (A)

1-octyne (B)

and 1-dodecyne (C) catalyzed by TaCl5-Ph4Sn. The polymers are completely soluble in common solvents such as toluene

THF

chloroform

and dichloromethane. The polymers are characterized by spectroscopic methods and all of the polymers give satisfactory analysis data corresponding to their expected molecular structures.

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