Radiation‐induced graft polymerization of vinyl monomers onto polyamide‐6

Abstract

Radiation-induced graft copolymerization of 4-vinyl pyridine (VP) and a binary mixture of VP and acrylonitrile (AN) onto polyamide-6 (PA6) fiber has been studied. Optimum reaction conditions leading to maximum percentage of grafting have been evaluated. The graft copolymers have been characterized by IR spectroscopy, thermogravimetric analysis and also by studying the dyeing behaviour of the grafted and ungrafted fiber. It has been observed that, although the thermal properties of fibers had changed upon grafting, the dyeing behaviour, with respect to the total dye uptake, did show only little improvement. ZUSAMMENFASSUNG:Die strahleninduzierte Pfropfcopolymerisation von 4-Vinylpyridin (VP) und eines binaren Gemisches von VP mit Acrylnitril (AN) auf Polyamid-6 (PA6) wurde untersucht. Die optimalen Reaktionsbedingungen zur Erzielung maxirnaler Pfropfung wurden ermittelt. Die Pfropfcopolymeren wurden mittels IR-Spektroskopie und thermogravimetrischer Analyse charakterisiert. Die thermischen Eigenschaften der Fasern anderten sich durch das Pfropfen, das Farbeverhalten der Fasern bezuglich der Gesamtfarbstoffaufnahme jedoch kaum.

Characterization and modification of commercial acrylic fibers grafted with acrylic acid

“…Grafting reaction involves the copolymerization of monomer onto the polymer backbone. The formation of copolymers of various synthetic and natural polymers via graft copolymerization has been extensively studied [2,3,4]. Among synthetic fibers, acrylic fibers seem to be important fibers because of their potential applications in many industries [5].…”

Development and assessment of the advanced graft copolymers obtained from Hibiscus sabdariffa biomass

“…17 The potential applications of graft copolymerization could be immensely increased by selecting various initiators like ceric ammonium nitrate (CAN), potassium per sulphate (KPS), and ammonium per sulphate (APS). 18 Researchers have used different vinyl monomers with varied backbones such as poly(butyl acrylate), 19 poly(methyl acrylate), 20 poly(acrylic acid), poly(vilidene fluoride), 21 glycol polymers, 22 and cellulose 23 to get increased graft yield, hydrophobicity, chemical resistance, and physical strength.…”

Synthesis, characterization, and evaluation of novel Hibiscus sabdariffa‐g‐poly(EA) copolymer

“…[1][2][3][4][5][6][7][8][9][10] Misra and co workers 11,12 have extensively studied the modification of natural and synthetic fibers such as wool, gelatin, 13,14 poly(vinyl alcohol), 15,16 rayon, and polyamide-6. 17 The potential applications of graft copolymerization could be immensely increased by selecting various initiators such as ceric ammonium nitrate (CAN), potassium per sulfate, and ammonium per sulfate. 18 Researchers have used different vinyl monomers with varied backbones such as poly butyl acrylate, 19 poly methyl acrylate, 20 poly acrylic acid, poly vilidene fluoride, 21 glycol polymers, 22 and cellulose 23 to get increased graft yield, hydrophobicity, chemical resistance, and physical strength.…”