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

Autor(es)

Braga, Natalia E. ; Zaggo, Henrique M. ; Montanheiro, Thais L. A. ; Passador, Fabio R.

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF MANUFACTURING AND MATERIALS PROCESSING; v. 3, n. 2, p. 11-pg., 2019-06-01.

Resumo

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. (AU)

• Processo FAPESP: 17/24873-4 - Nanocompósito de PHBV e NTC funcionalizado com hidroxibutirato: estudo cinético da cristalização e correlação com as propriedades mecânicas
• Beneficiário: Thaís Larissa do Amaral Montanheiro
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 16/19978-9 - Desenvolvimento de nanocompósitos de blendas de PA6/LLDPE e negro de fumo para embalagens antiestáticas para componentes eletrônicos
• Beneficiário: Fabio Roberto Passador
• Modalidade de apoio: Auxílio à Pesquisa - Regular