Novel composite nanofibers based on polyamide 66/graphene oxide- grafted aliphatic- aromatic polyamide: preparation and characterization. Issue 8 (24th May 2019)

• Record Type: Journal Article
• Authors: Jahan Biglari, Maryam; Semnani Rahbar, Rouhollah; Shabanian, Meisam; Khonakdar, Hossein Ali
• Is Part Of: Polymer-plastics technology and materials. Volume 58:Issue 8(2019)
• Page Start: 879
• Page End: 888
• Publication Date: 2019-05-24
• Subjects: Polyamide 66 -- electrospinning -- composite nanofibers -- functionalized GO -- aliphatic-aromatic polyamide -- thermal properties; Polymers -- Periodicals; Polymerization -- Periodicals; Plastics -- Periodicals; Plastics; Polymerization; Polymers; Periodicals; 668
• DOI: 10.1080/03602559.2018.1542712
• Languages: English
• ISSNs: 2574-0881

Abstract

ABSTRACT: New polyamide 66/graphene oxide (GO)-grafted aliphatic-aromatic polyamide (polyamide-imide) (PAI) (PA66/GOF) composites nanofibers were successfully prepared via electrospinning method for the first time. An polyamide imide (PAI) was synthesized using polycondensation reaction from a dicarboxylic acid and a diamine based on 4, 4′-(4, 4′-isopropylidenediphenyl-1, 1′-diyldioxy) dianiline, and characterized by 1 HNMR and FTIR. Morphological, structural, thermal and mechanical characteristics of the nanocomposite fibers were investigated by means of SEM, TEM, WAXD, DMTA and TGA techniques. Composites nanofibers of PA66/GO, PA66/PAI and PA66/GOF with smooth surface, uniform structure as well as with diameter ranging from 195 to 784 nm were obtained. The GO incorporation caused a reduction in the nanofibers diameters. The TEM images showed that the GO was well dispersed in the PA66 nanofibers without significant aggregation. An approximately 10 °C temperature increase in the glass transition temperature of PA66 was achieved by addition of 0.5 wt% of PAI, resulting from aliphatic-aromatic structure of PAI. By the TGA results, an increase about 40 °C was observed in the thermal stability of PA66/PAI composite nanofibers in comparison with that of pure PA66 nanofibers. Graphical Abstract: