The surface modification of poly(ethylene terephthalate) films with polyfluorinated alcohols was studied. X ray diffraction analysis, differential scanning calorimetry, and IR Fourier spectroscopy were used to determine that a modifier has a combined effect on the supramolecular structure of the polyester. The fea tures of distribution of the modifier over the film surface are shown. The stabilizing effect of adding the mod ifier is discussed.
ABSTRACT:Octafluoropentyl acrylate [H(CF 2 CF 2 ) 2 CH 2 -C(O)CHACH 2 ] and polycaproamide (PA-6) thread were copolymerized with a tert-butyl hydroperoxide initiator. The fluorine content of the thread was 0.87-1.33% after copolymerization. The creation of ester polyfluorinated alkyl groups on the end of the polyamide macromolecules by the homolytical substitution of hydrogen atoms in the ␣-CH 2 O group of the OHNOCH 2 O(CH 2 ) 4 OC(O)O chain led to an increase in the tensile strength of the PA-6 thread.
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