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Preparation of Maleic Anhydride Grafted Poly(trimethylene terephthalate) (PTT-g-MA) by Reactive Extrusion Processing

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Laboratório de Tecnologia de Polímeros e Biopolímeros, Universidade Federal de São Paulo - UNIFESP, São José dos Campos, SP 12231-280, Brasil
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Laboratório de Plasmas e Processos, Divisão de Ciências Fundamentais, Instituto Tecnológico de Aeronáutica – ITA, São José dos Campos, SP 12228-900, Brasil
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Author to whom correspondence should be addressed.
J. Manuf. Mater. Process. 2019, 3(2), 37; https://doi.org/10.3390/jmmp3020037
Received: 5 March 2019 / Revised: 17 April 2019 / Accepted: 29 April 2019 / Published: 4 May 2019
Maleic anhydride (MA) grafted with poly(trimethylene terephthalate) (PTT)—abbreviated as PTT-g-MA—can be used as a compatibilizing agent to improve the compatibility and dispersion of nanofillers and a dispersed polymer phase into PTT matrix. This work suggests the preparation of PTT-g-MA using a mixture of PTT, MA, and benzoyl peroxide (BPO) by a reactive extrusion process. PTT-g-MA was characterized to confirm the grafting reaction of maleic anhydride on PTT chains by Fourier transform infrared (FTIR) spectroscopy. Thermal properties (differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA)) and rheological analysis (parallel plates rheology) were used to prove the changes that occurred after the graphitization reaction. The reactive processing route allowed the production of the compatibilizing agent (PTT-g-MA) with good thermal properties and with lower viscosity compared to neat PTT, and this could be an alternative for the compatibilization of polymer blends, as example for PTT/ABS (acrylonitrile butadiene styrene) blends and nanocomposites based on PTT matrix. View Full-Text
Keywords: poly(trimethylene terephthalate); maleic anhydride; compatibilizing agent poly(trimethylene terephthalate); maleic anhydride; compatibilizing agent
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MDPI and ACS Style

Braga, N.F.; Zaggo, H.M.; Montanheiro, T.L.A.; Passador, F.R. Preparation of Maleic Anhydride Grafted Poly(trimethylene terephthalate) (PTT-g-MA) by Reactive Extrusion Processing. J. Manuf. Mater. Process. 2019, 3, 37.

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