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Digitale Medien

Radiation-induced polymerization of 3,3,4,4,5,5,5-heptafluoropentene-1 at high pressure (1970)

Brown, Daniel W. ; Lowry, Robert E. ; Wall, Leo A.

New York : Wiley-Blackwell

Journal of Polymer Science Part A-1: Polymer Chemistry 8 (1970), S. 3483-3493

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Details

ISSN: 0449-296X

Schlagwort(e): Physics ; Polymer and Materials Science

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: A study was made of the radiation-induced polymerization under pressure of 3,3,4,4,5,5,5-heptafluoropentene-1. Polymerization rates increase with pressure (activation volume equals - 11 cc/mole) and temperature (activation enthalpy equals 6.5 kcal/mole) in liquid phase. At 13800 atm and 25°C, freezing occurs; the polymerization rate in the solid is very small. In liquid phase polymerization can continue for many hours after the irradiation is terminated. An active species is formed by radiation which initiates polymerization in the dark period.

Zusätzliches Material: 5 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/pol.1970.150081210

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