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Títol: Nanocomposites of in-situ polymerized cyclic butylene terephthalate and polyhedral oligomeric silsesquioaxanes
Autor: Abt, Tobias Martin
Illescas Fernandez, Silvia
Sousa Pais Antunes, Marcelo de
Cáceres Moreno, María Angélica
Sánchez Soto, Miguel
Altres autors/autores: Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
Matèries: Àrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers
Nanocomposites (Materials)
Nanocompòsits (Materials)
Tipus de document: Conference report
Descripció: Nanocomposites were prepared by in-situ polymerization of CBT®, a cyclic form of poly(butylene terephthalate) (PBT) and polyhedral oligomeric silsesquioxane (POSS®) with 2.5, 5 and 10 wt% POSS content. Three different types of POSS were used; two with reactive functional groups, Trisilanolphenyl POSS (TPOSS) and Glycidyl POSS (G-POSS) and one POSS type having non-reactive functionality, Isooctyl POSS (I-POSS). SEM analysis showed that I-POSS was finely dispersed at a nanoscale level within the CBT, whereas T-POSS and GPOSS formed agglomerates microscaled rather than nanoscaled. T-POSS hinders the polymerization reaction of the CBT, resulting in a poor consolidation of the composite. However, Glycidyl POSS was found to crosslink the CBT during polymerization, making it possible to alter the final material properties. All nanocomposites with 10 wt% POSS content showed a hindered cold crystallization and subsequently showed no melting peak of the formed polymer in a DSC scan.
Altres identificadors i accés: Abt, T. [et al.]. Nanocomposites of in-situ polymerized cyclic butylene terephthalate and polyhedral oligomeric silsesquioaxanes. A: 5º Congreso Nacional de Jóvenes Investigadores en Polímeros. "5º Congreso Nacional de Jóvenes Investigadores en Polímeros". Calella de Palafrugell: 2010.
http://hdl.handle.net/2117/7198
Disponible al dipòsit:E-prints UPC
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