pages 331-337
Copolymerization of Carbon Dioxide and Epoxide
1
Department of Synthetic Chemistry, Faculty of Engineering, University of Tokyo, Hongo, Bunkyo-ku, Japan
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Publication type: Book Chapter
Publication date: 1987-01-01
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Abstract
Alternating copolymerization of CO2 and epoxide to give aliphatic polycarbonate with high molecular weight proceeds under mild conditions by organometallic catalyst systems. The reaction product of diethylzinc with a polyhydric compound, such as water or polyhydric phenol, exhibits high catalytic activity. Elementary reactions for the copolymerization of CO2 and epoxide with an organozinc catalyst system is considered to be the reaction of a zinc alkoxide with CO2 to form a zinc alkyl carbonate, and the reaction of the zinc alkyl carbonate with epoxide to regenerate zinc alkoxide. The system of aluminum porphyrin such as (tetraphenylporphinato)aluminum chloride, coupled with a quaternary ammominum or phosphonium salt, such as ethyltriphenylphosphonium bromide, is a good catalyst for this copolymerization. Of much interest is the very narrow molecular weight distribution of the copolymer obtained by this system. Aluminum porphyrin and the quaternary salt forms a hexa-coordinate complex, and the copolymerization reaction is considered to proceed on both sides of the porphyrin ring. Some properties of the copolymer for possible application are described.
Top-30
Citations by journals
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1
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Inorganic Chemistry
1 publication, 10%
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Frontiers in Catalysis
1 publication, 10%
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Journal of Polymer Science, Part A: Polymer Chemistry
1 publication, 10%
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Organometallics
1 publication, 10%
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Macromolecules
1 publication, 10%
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Dalton Transactions
1 publication, 10%
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Russian Chemical Reviews
1 publication, 10%
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1
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Citations by publishers
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1
2
3
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American Chemical Society (ACS)
3 publications, 30%
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Wiley
3 publications, 30%
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Frontiers Media S.A.
1 publication, 10%
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Royal Society of Chemistry (RSC)
1 publication, 10%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 10%
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1
2
3
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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