The Polymerization of Propargyl Halides (Cl, Br) Using M(Co)5pph3/Rxalcl3-X (M=Mo, W) as Catalysts

 
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1994 (EN)
The Polymerization of Propargyl Halides (Cl, Br) Using M(Co)5pph3/Rxalcl3-X (M=Mo, W) as Catalysts (EN)

Siskos, M. G. (EN)

Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας (EL)
Siskos, M. G. (EN)

Propargylchloride (PCl) and propargylbromide (PBr) were polymerized in good yields using M(CO)5PPh3/R(x)AlCl3-x as catalysts (M=W, Mo). Mo was found to be more effective than W. The presence of chlorine atoms in co-catalyst was important for the activation of the catalyst. The obtained polymers were coloured, insoluble in all organic solvents and stable until 150-degrees-C. From their IR and ESR spectra is concluded that the polymers have highly conjugated structures. The oligomeric products were constituted mainly from cyclotrimers. In the case of Mo-catalyst only 1,2,4-cyclotrimer was obtained; a mixture of 1,2,4 and 1,3,5-derivatives were formed using W-catalysts. (EN)

acetylene derivatives (EN)

Πανεπιστήμιο Ιωαννίνων (EL)
University of Ioannina (EN)

Polymer Bulletin (EN)

English

1994

<Go to ISI>://A1994PD10500006

Springer-Verlag (EN)



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