Thermally Stable Phosphonium Organoclay-Reinforced Polyimide Nanocomposites. Issue 4 (4th March 2017)

• Record Type: Journal Article
• Authors: Birtane, Hatice; Beyler-Çiğil, Aslı; Çakmakçı, Emrah; Kahraman, Memet Vezir
• Is Part Of: Polymer-plastics technology and engineering. Volume 56:Issue 4(2017)
• Page Start: 443
• Page End: 452
• Publication Date: 2017-03-04
• Subjects: Differential scanning calorimetry -- nanocomposites -- organoclay -- polyimides; Polymers -- Periodicals; Polymerization -- Periodicals; Polymers -- Periodicals; Engineering -- Periodicals; Plastics -- Periodicals; 668.9
• DOI: 10.1080/03602559.2016.1233258
• Languages: English
• ISSNs: 0360-2559

Abstract

ABSTRACT: To prepare clay containing high-temperature processable polymer nanocomposites, new cation exchangeable agents with high thermal stability are required. In this work, we investigated the effect of a thermally stable phosphonium-modified organoclay on the properties of polyimides prepared from the reaction of 4, 4′-oxydianiline with 3, 3′, 4, 4′-benzophenonetetracarboxylic dianhydride. The organoclay was prepared from the reaction of pristine clay with octyltriphenylphosphonium bromide. Phosphonium-modified clay displayed a negligible weight loss (<5%) below 300°C. The thermal stability of the composites enhanced with the increasing amount of phosphonium-modified clay. GRAPHICAL ABSTRACT: