Acetonitrile pretreatment of 100% poly-(ethylene terephthalate) fabric was performed over different lengths of time. The influence of solvent treatment on the dyeing behavior and some of the physicochemical properties were investigated.

No abstract

ABSTRACT:Poly(o-anisidine)-Poly(ethylene terephthalate) composite film was prepared by chemical oxidative polymerization method. The composite film shows a conductivity of about 15.6 K À1 cm À1 with 3.5 wt. % of POA. Fourier Transform infra-red (FT-IR) and UV-vis spectral analyses reveal the existence of hydrogen bonding interactions between the groups in PET and POA. X-Ray diffraction analysis informs that the amorphous characteristic of PET is affected by the presence of POA in the composite. UV-vis spectral results demonstrate that there exists cross-linking in the composite film when the POA in the composite undergoes doping and dedoping. AFM micrographs confirm the formation of genuine composite between POA and PET.

Detailed studies on the peroxidisulfate (PDS) initiated graft copolymerization of N-methyl aniline (NMA) with poly(ethylene terepthalate) (PET) were carried out in p-tolene sulfonic acid medium under nitrogen atmosphere. Experiments were designed to follow the rate of formation R h of the poly(N-methyl aniline (PNMA), simultaneously with the rate of grafting of PNMA onto PET. Effects of concentration of NMA, PDS, PET, time, and temperature on R h and graft parameters were followed. Kinetic equations were deduced to correlate the changes in the rate with experimental conditions. Graft copolymers were isolated and grafting of PNMA onto PET was confirmed through FTIR, thermogravimetric analysis, and conductivity measurements. Tensile measurements showed that grafting of PNMA did not alter the tensile properties of PET. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 95: 596 -605, 2005