Grafting of styrene onto fluoropolymers films
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2007
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INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 8th/ MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 15th
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Grafting of styrene onto poly(vinylidenefluoride) (PVDF) and poly(tetrafluoroethylene) (PTFE) films was
studied for the synthesis of ion exchange membranes. Radiation-induced grafting of styrene onto PVDF and
PTFE films was investigated by simultaneous method using a Co60 source. The films of PVDF and PTFE were
irradiated at total dose of 20 to 120 kGy and chemical changes were monitored after contact with styrene. Films
of PTFE and PVDF were immersed in styrene/toluene 1:1 and were submitted to gamma radiation. After
irradiation the samples were evaluated at periods of 0, 7, 14, 21 and 28 days, at room temperature in order to
measure the grafting degree. Results of infrared spectroscopic analysis (FTIR), differential scanning
calorimetry (DSC), thermogravimetry analysis (TGA) and the degree of grafting (DOG) were evaluated. The
characterization techniques showed that irradiated PVDF and PTFE films exhibited a much higher grafting
degree at 120 kGy.
Como referenciar
GERALDES, ADRIANA N.; ZEN, HELOISA A.; PARRA, DUCLERC F.; LUGAO, ADEMAR B.; LINARDI, MARCELO. Grafting of styrene onto fluoropolymers films. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 8th/ MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 15th, Sept. 30 - Oct. 5, 2007, Santos, SP. Proceedings... Disponível em: http://repositorio.ipen.br/handle/123456789/15726. Acesso em: 20 Feb 2025.
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