Synthesis and monomer reactivity ratio of cobalt-containing hybrid polysilanes

Tae Sung Si, Sang Man Koo

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Dichloromethylsilylcobaltcarbonyl (DCMSC) was synthesized by the reaction of dichloromethylsilane (DCMS) with dicobaltoctacarbonyl (DCOC) and used to prepare metal-containing polysilanes. Copolymers of DCMSC with dichlorodimethyl- (DCDMS), dichlorodiethyl- (DCDES), dichloromethylphenyl- (DCMPS) silane were obtained using reductive coupling polymerization. The molecular weight of the copolymers increased regularly in the initial stage of the reaction but approached equilibrium values as the reaction proceeded. Depending on the monomer reactivity ratios, copolymers 2,3 and 4 could have either alternating or block-like copolymer structures. Increasing amounts of carbons in the side-chain of the copolymers leads to block-like composition.

Original languageEnglish
Pages (from-to)891-896
Number of pages6
JournalPolymer International
Volume54
Issue number6
DOIs
StatePublished - 2005 Jun 1

Fingerprint

Polysilanes
Cobalt
Copolymers
Monomers
Silanes
Carbon
Metals
Molecular weight
Polymerization
Chemical analysis

Keywords

  • Cobalt containing polysilanes
  • Copolymerization
  • Hybrid
  • Monomer reactivity ratio
  • Reductive coupling

Cite this

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Synthesis and monomer reactivity ratio of cobalt-containing hybrid polysilanes. / Si, Tae Sung; Koo, Sang Man.

In: Polymer International, Vol. 54, No. 6, 01.06.2005, p. 891-896.

Research output: Contribution to journalArticle

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T1 - Synthesis and monomer reactivity ratio of cobalt-containing hybrid polysilanes

AU - Si, Tae Sung

AU - Koo, Sang Man

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N2 - Dichloromethylsilylcobaltcarbonyl (DCMSC) was synthesized by the reaction of dichloromethylsilane (DCMS) with dicobaltoctacarbonyl (DCOC) and used to prepare metal-containing polysilanes. Copolymers of DCMSC with dichlorodimethyl- (DCDMS), dichlorodiethyl- (DCDES), dichloromethylphenyl- (DCMPS) silane were obtained using reductive coupling polymerization. The molecular weight of the copolymers increased regularly in the initial stage of the reaction but approached equilibrium values as the reaction proceeded. Depending on the monomer reactivity ratios, copolymers 2,3 and 4 could have either alternating or block-like copolymer structures. Increasing amounts of carbons in the side-chain of the copolymers leads to block-like composition.

AB - Dichloromethylsilylcobaltcarbonyl (DCMSC) was synthesized by the reaction of dichloromethylsilane (DCMS) with dicobaltoctacarbonyl (DCOC) and used to prepare metal-containing polysilanes. Copolymers of DCMSC with dichlorodimethyl- (DCDMS), dichlorodiethyl- (DCDES), dichloromethylphenyl- (DCMPS) silane were obtained using reductive coupling polymerization. The molecular weight of the copolymers increased regularly in the initial stage of the reaction but approached equilibrium values as the reaction proceeded. Depending on the monomer reactivity ratios, copolymers 2,3 and 4 could have either alternating or block-like copolymer structures. Increasing amounts of carbons in the side-chain of the copolymers leads to block-like composition.

KW - Cobalt containing polysilanes

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KW - Monomer reactivity ratio

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