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Glycidyl methacrylate-based copolymers as new compatibilizers for polypropylene/ polyethylene terephthalate blends

Lima, Mafalda S. ; Matias, Áurea A. ; Costa, João R. C. ; Fonseca, Ana C. ; Coelho, Jorge F. J. ; Serra, Arménio C.

Journal of polymer research, 2019-06, Vol.26 (6), p.1-15, Article 127 [Periódico revisado por pares]

Dordrecht: Springer Netherlands

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Título:
Glycidyl methacrylate-based copolymers as new compatibilizers for polypropylene/ polyethylene terephthalate blends
Autor: Lima, Mafalda S. ; Matias, Áurea A. ; Costa, João R. C. ; Fonseca, Ana C. ; Coelho, Jorge F. J. ; Serra, Arménio C.
Assuntos: Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Compatibility ; Compatibilizers ; Copolymers ; Crystallization ; Industrial Chemistry/Chemical Engineering ; Original Paper ; Polyethylene terephthalate ; Polymer blends ; Polymer Sciences ; Polypropylene ; Thermal stability ; Thermodynamic properties
É parte de: Journal of polymer research, 2019-06, Vol.26 (6), p.1-15, Article 127
Descrição: The improvement of flexural properties of polypropylene (PP) could be achieved by blending it with a stiffer polymer like poly(ethylene terephthalate) (PET). The main problem is the compatibilization between a saturated, apolar structure with a polar polyester. Copolymers of glycidyl methacrylate (GMA) and 2-ethylhexyl acrylate (EHA) were prepared, characterized and used as compatibilizers in PP/PET (70/30 wt%) blends at different feed ratios. The effects of compatibilization of these polymers were analyzed by SEM, which shows reduction of the size of PET granules, and by TGA, with an increase in the thermal stability of the compatibilized blends. Thermal properties corresponding to melting and crystallization events were also changed by the introduction of the compatibilizers. The DMTA shows that the T g of the PET domain is affected by compatibilization, contrary to the T g of PP domain. The compatibilization efficiency was further confirmed by an increase in flexural strain at flexural strength (ε FM ).
Editor: Dordrecht: Springer Netherlands
Idioma: Inglês

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Glycidyl methacrylate-based copolymers as new compatibilizers for polypropylene/ polyethylene terephthalate blends

Lima, Mafalda S. ; Matias, Áurea A. ; Costa, João R. C. ; Fonseca, Ana C. ; Coelho, Jorge F. J. ; Serra, Arménio C.

Dordrecht: Springer Netherlands

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