Nanocomposites Derived from Sulfonated Poly(butylene terephthalate)

Abstract

The effect of sodium sulfonate functionalization of poly(butylene terephthalate) (PBT) on the properties of PBT/montmorillonite composites was studied. The results of the study clearly showed that organic modification of montmorillonite clay coupled with the modification of PBT with low levels (1.0-5.0 mol %) of -SO 3Na groups results in the production of highly exfoliated nanocomposites by a simple extrusion process. With regard to the effect of -SO3Na content, as little as 1.0 mol % -SO3Na groups was needed to achieve considerable exfoliation of R4N + montmorillonite. Although the degree of exfoliation was not observed to be strongly dependent on -SO3Na content, mechanical properties such as Young's modulus and high-temperature storage moduli at temperatures above Tg increased with increasing -SO3Na content. These enhancements in mechanical properties produced by a higher -SO3-Na content were due to an increase in the number of interactions between the clay particles and the matrix via electrostatic interactions involving the -SO3Na groups.

Preparation and characterization of an aromatic polyester/polyaniline composite and its improved counterpart

“…The potential benefits of self-sterilizing fabrics made with antibacterial PBT fibers include reduced disease transfer among hospital populations and biowarfare protection. Much research has been conducted to extend and develop commercial applications for PBT in high-performance composites using various reinforcing fillers [19,20]. This study focused on the characterization of composites of PBT-g-MA and PANI prepared using an in situ polycondensation reaction process.…”

Preparation and characterization of poly(butylene terephthalate)/silica nanocomposites

“…However, the disadvantages such as low impact strength and heat distortion temperature limit the applications of PBT. Many attempts have been made to obtain desirable properties of PBT by blending it with other polymers or fillers [7][8][9][10][11][12][13][14][15][16][17][18][19]. Among these blends, PBT/inorganic nanocomposites have attracted more and more interest, especially PBT/clay nanocomposites have been widely investigated.…”

Improved dispersion of multi-wall carbon nanotubes in poly(butylene terephthalate) using benzimidazolium surfactants

“…In particular, comparing the temperature at which the modulus E' is 2.5 . 10 8 Pa (as indirect indication of heat deflection temperature, HDT tested at 0.45 MPa) [19] it is possible to note that the nanocomposite with The electrical conductivity test (Figure 7) proved again the better dispersion of the MWNTs using the compatibilization agent since the electrical conductivity is higher in the presence of benzimidazolium salt. For example, the conductivity with 1% wt of MWNT is increased from 1.1…”