Influence of pH to Increase grafting degree into fluoropolymers
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Open Journal of Polymer Chemistry
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Poly(ethylene-alt-tetra-fluoroethylene (ETFE) and poly(tetrafluoroethylene-cohexafluoropropylene)
(FEP) were pre-irradiated under air using a Co60 gamma
source to graft styrene at low pH. Grafting copolymers were tuned by
study of different parameters (monomer, reaction time, temperature, and pH
with addition of sulfuric acid (H2SO4)). The maximum degree of grafting was
80% and 40% for ETFE and FEP respectively at dose 2 kGy. Influence of low
pH in grafting degree by adding sulfuric acid was studied. Grafting degree was
examined by infrared (FTIR-ATR), differential scanning calorimetry (DSC)
and swelling behavior analysis after sulfonation process.
Como referenciar
GONZALEZ-PEREZ, GIOVANNI; LUGAO, ADEMAR B. Influence of pH to Increase grafting degree into fluoropolymers. Open Journal of Polymer Chemistry, v. 07, n. 03, p. 43-56, 2017. DOI: 10.4236/ojpchem.2017.73004. Disponível em: http://repositorio.ipen.br/handle/123456789/28518. Acesso em: 30 Dec 2025.
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.