Advanced search
Start date
Betweenand

Study of the reaction kinetic and the addition of the metal deactivators in the grafting of maleic anhydride onto polypropylene in the presence and absence of the nanoparticles

Abstract

Grafting of maleic anhydride onto polypropylene has as aim to obtaining compatibilizer agents to incompatible systems. In a general way this compatibilizer are used in polymeric blends and composites where there are differences in polarity of components. The grafting reaction has been carrying out by reactive processing in melt state mainly due to the continuous nature of process and absence of solvents, during reaction. However, this reaction presents low efficiency and it is accompanied by severe degradation of polypropylene. In order to reduce the polypropylene degradation and increase the grafting efficiency our group focused efforts in investigation in use of nanoparticles of montmorillonite in grafting of maleic anhydride onto polypropylene. This new system changes the way that peroxide is inserted into melt polymeric bulk and in maleic anhydride distribution. When montmorilloonite nanoparticles are used, the peroxides molecules are inserted into them silicate layers, and the maleic anhydride is adsorbed. Thus using nanoparticles is possible insert the peroxyl radicals at polymeric bulk by diffusion, that changes kinetic of reaction. Therefore, the present project has as objective study the changes in reaction kinetic, comparing grafting system with and without montmorillonite. It is proposed too, the use of metal deactivator into nanoclays to investigate the influence of ions presents into montmorilonite structure in kinetic of grafting. Finally, trying to turn this material more interesting to industry is proposed studying of differents ratios between montmorilonite and peroxide to obtain some masterbatch, that could reduce one step in nanocomposite production. (AU)

Articles published in Agência FAPESP Newsletter about the research grant:
Articles published in other media outlets (0 total):
More itemsLess items
VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)

Scientific publications (9)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CORRALES URENA, YENDRY REGINA; PRADO BETTINI, SILVIA HELENA; MUNOZ, PABLO RIVEROS; WITTIG, LINDA; RISCHKA, KLAUS; LISBOA-FILHO, PAULO N.. In situ sonochemical synthesis of ZnO particles embedded in a thermoplastic matrix for biomedical applications. Materials Science & Engineering C-Materials for Biological Applications, v. 49, p. 58-65, . (11/21313-1)
RIGOLIN, TALITA ROCHA; COSTA, LIDIANE CRISTINA; BETTINI, SILVIA HELENA PRADO. Chemically modified poly(lactic acid): structural approach employing two distinct monomers. JOURNAL OF POLYMER RESEARCH, v. 28, n. 4, . (08/04334-2, 11/21313-1)
RIVEROS MUNOZ, PABLO ANDRES; CANEVAROLO, SEBASTIAO VICENTE; PRADO BETTINI, SILVIA HELENA. Free radical mechanism for reactive processing of polymers in the presence of organoclay/peroxide nanoreactors: Grafting maleic anhydride onto polypropylene. Chemical Engineering Science, v. 230, . (08/04334-2, 11/21313-1)
BACKES, EDUARDO HENRIQUE; PIRES, LAIS DE NOBILE; SELISTRE-DE-ARAUJO, HELOISA SOBREIRO; COSTA, LIDIANE CRISTINA; PASSADOR, FABIO ROBERTO; PESSAN, LUIZ ANTONIO. Development and characterization of printablePLA/beta-TCPbioactive composites for bone tissue applications. Journal of Applied Polymer Science, v. 138, n. 5, . (16/19978-9, 19/11437-7, 17/11366-7, 17/09609-9, 11/21313-1)
LÍVIA MARIA GARCIA GONÇALVES; TALITA ROCHA RIGOLIN; BIANCA MAIA FRENHE; SÍLVIA HELENA PRADO BETTINI. On the Recycling of a Biodegradable Polymer: Multiple Extrusion of Poly (Lactic Acid). MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 23, n. 5, p. -, . (11/21313-1)
RIVEROS MUNOZ, PABLO ANDRES; PRADO BETTINI, SILVIA HELENA. Montmorillonite as support for peroxide in the melt grafting of maleic anhydride onto polypropylene. Journal of Applied Polymer Science, v. 133, n. 42, . (08/04334-2, 11/21313-1)
GONCALVES BEATRICE, CESAR AUGUSTO; BORIOLO SHIMOMURA, KAWANY MUNIQUE; BACKES, EDUARDO HENRIQUE; HARB, SAMARAH VARGAS; COSTA, LIDIANE CRISTINA; PASSADOR, FABIO ROBERTO; PESSAN, LUIZ ANTONIO. Engineering printable composites of poly (epsilon-polycaprolactone) / beta-tricalcium phosphate for biomedical applications. Polymer Composites, v. 42, n. 3, . (17/11366-7, 18/26060-3, 17/09609-9, 18/14151-4, 11/21313-1)
BACKES, EDUARDO H.; FERNANDES, EMANUEL M.; DIOGO, GABRIELA S.; MARQUES, CATARINA F.; SILVA, TIAGO H.; COSTA, LIDIANE C.; PASSADOR, FABIO R.; REIS, RUI L.; PESSAN, LUIZ A.. Engineering 3D printed bioactive composite scaffolds based on the combination of aliphatic polyester and calcium phosphates for bone tissue regeneration. Materials Science & Engineering C-Materials for Biological Applications, v. 122, . (17/11366-7, 11/21313-1, 18/13625-2, 17/09609-9)
BACKES, EDUARDO HENRIQUE; BEATRICE, CESAR AUGUSTO GONCALVES; SHIMOMURA, KAWANY MUNIQUE BORIOLO; HARB, SAMARAH VARGAS; PACHANE, BIANCA CRUZ; SELISTRE-DE-ARAUJO, HELOISA SOBREIRO; COSTA, LIDIANE CRISTINA; PASSADOR, FABIO ROBERTO; PESSAN, LUIZ ANTONIO. Development of poly(epsilon-polycaprolactone)/hydroxyapatite composites for bone tissue regeneration. Journal of Materials Research, v. 36, n. 15, SI, . (11/21313-1, 17/09609-9, 18/14151-4, 17/11366-7, 18/26060-3)

Please report errors in scientific publications list by writing to: cdi@fapesp.br.