Catalytic Graphite Inclusion Compounds. I. Potassium Graphite as a Polymerization Catalyst

Podall, H. E.; Foster, Walter E.; Giraitis, Albert P.

doi:10.1021/jo01095a025

Cited by 51 publications

(14 citation statements)

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“…In 1958, it was discovered that alkali metal-GICs could initiate the polymerization of ethylene. 56 In 1993 Bunnell et al 57 proposed the production of polymer nanocomposites by incorporating graphite nanoplatelets (derived from GICs exfoliated either by shear grinding or thermal treatment) as llers, where they suggested that with 20 wt% incorporation of graphite akes in polyethylene or polypropylene, the stiffness of the nished product approached that of aluminium. However, it was not until 2000 that a detailed study of the morphology and properties of an exfoliated graphite nanocomposite was published.…”

Section: Polyolefin/graphene Nanocompositesmentioning

confidence: 99%

Polyolefin/graphene nanocomposites: a review

et al. 2017

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Polymeric materials reinforced with nanofillers continue to fulfill the worldwide demand for alternative materials with low cost and better physico-mechanical properties. These materials are prepared by mixing polymers with nanofillers (e.g. layered silicates, metal oxides, carbon nanotubes (CNTs) and graphene) using in situ or melt blending techniques for improved physico-mechanical properties. Among all the nanofillers, CNTs and graphene have emerged as subjects of tremendous scientific interest and have attracted a great deal of attention from across several disciplines in recent years. Among the nanofillers, graphene has shown very good electrical, thermal, mechanical and gas barrier properties in combination with polyolefins. The present review is an overview of polyolefin/graphene based composites, especially of polypropylene (PP) and polyethylene (PE), with special emphasis on their methods of preparation, properties and potential applications. Fig. 7 Storage modulus vs. frequency graphs of (a) C_PE/rGON composites. (b) Dis_PE/rGON composites and frequency sweep graphs of (c) C_PE/rGON composites. (d) Dis_PE composites (reproduced with permission from ref. 79

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Section: Polyolefin/graphene Nanocompositesmentioning

confidence: 99%

Polyolefin/graphene nanocomposites: a review

et al. 2017

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“…The preparation of the initiator followed the literature procedures [11], [12], [13], [14], [15] . A 250-ml, 3-neck round bottom flask, glass stirring rod, dropping funnel, and nitrogen inlet/outlet was oven-dried overnight, then assembled and flame dried with a Bunsen burner under a nitrogen atmosphere.…”

Section: Preparation Of Potassium Graphite Initiator (Kc8)mentioning

confidence: 99%

Polystyrene/graphite nanocomposites: effect on thermal stability

Uhl

Wilkie

2002

Polymer Degradation and Stability

107

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“…Such lamellar compounds of graphite with intercalated alkali metals were first observed in 1926 16. Their unusual structure confers on them several interesting properties, such as superconductivity, reactivity with hydrogen and nitrogen and the isomerisation and polymerisation of alkenes 17–20. Furthermore, alkali metal intercalates have received much attention due to their electronic properties which manifests itself in effects like paramagnetism,21, 22 and a significant increase in electrical conductivity 23, 24.…”

Section: Introductionmentioning

confidence: 99%