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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Improvement of Processing and Mechanical Properties of Polyetherimide by Antiplasticization with Resorcinol Bis(diphenyl phosphate)

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Alexandrino, Evandro M. [1] ; da Conceicao, Thiago F. [1] ; Felisberti, Maria I. [1]
Total Authors: 3
[1] Univ Campinas UNICAMP, Inst Chem, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Journal of Applied Polymer Science; v. 131, n. 16 AUG 15 2014.
Web of Science Citations: 2

This article describes the antiplasticization of a commercial polyetherimide ULTEM (R) series 1000 {[}poly(bisphenol A-co-4-nitrophthalic anhydride-co-1,3-phenylenediamine) by resorcinol bis(diphenyl phosphate)] (RDP) and its implications on the thermomechanical processing, namely extrusion and injection molding, as well as on the thermal and mechanical properties of the formulations. This antiplasticization effect allows the processing of polyetherimide formulations at lower temperatures in comparison with neat polymer due to the progressive decrease of the glass transition temperature with increased RDP concentration, as observed by differential scanning calorimetry and dynamic mechanical analysis. The decrease of T-g occurs concomitantly with the overlap of the glass transition and relaxation and with the shift of the relaxation to higher temperatures. These changes in the relaxation spectrum of polyetherimide formulations are possibly responsible for the increase of the tensile strength and Young's modulus and changes in the fracture mechanism, as observed by stress-strain tests and by scanning electron microscopy, respectively. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40619. (AU)

FAPESP's process: 10/17804-7 - Polymeric composites
Grantee:Maria Isabel Felisberti
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 10/02098-0 - Multicomponent polymeric materials
Grantee:Maria Isabel Felisberti
Support Opportunities: Regular Research Grants
FAPESP's process: 10/03383-0 - Polymer composites of poly(ether imide)/Polyaniline: preparation and characterization
Grantee:Evandro Mendes Alexandrino
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 10/18268-1 - Preparation and processing of nanocomposites of polyimides with carbon nanotubes and graphen
Grantee:Thiago Ferreira da Conceição
Support Opportunities: Scholarships in Brazil - Post-Doctoral