Study of HMS-PP gel formation
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2010
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MEETING OF THEN IONIZING RADIATION AND POLYMERS SYMPOSIUM, 9th
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Resumo
High melt strength polypropylene (HMSPP) is the name used for the commercial long
chain branched iPP, recently developed and introduced in the market by major
international polypropylene producers. The HMS-PP in pellets was synthesized by
gamma irradiation of pristine PP under a crosslinking atmosphere of acetylene in
different doses of 5 kGy, 12.5 kGy and 20 kGy, followed by thermal treatment for
radical recombination and annihilation of the remaining radicals. The gel content of the
modified polypropylenes was determined by extraction in boiling xylene containing
antioxidant Irganox 1010 for period of 12 h at 135 °C. The gel formed of pristine PP
and modified, (i.e., irradiated) was characterized using Optical microscopy (MO),
Scanning electron microscopy (SEM), Fourier transformed infrared spectroscopy
(FTIR) and X–ray diffraction from the bulk. The HMSPP morphological study
indicated the microgel formation with increase in the dose 20 kGy.
Como referenciar
OLIANI, W.L.; PARRA, D.F.; FERMINO, D.M.; RIELLA, H.G.; LIMA, L.F.C.P.; LUGAO, A.B. Study of HMS-PP gel formation. In: MEETING OF THEN IONIZING RADIATION AND POLYMERS SYMPOSIUM, 9th, October 25-29, 2010, Maryland, USA. Abstract... Disponível em: http://repositorio.ipen.br/handle/123456789/21286. Acesso em: 20 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.