Graft copolymerization of vinyl monomers on modified cottons, XXII. Ceric‐induced grafting of acrylonitrile on cellulose bearing nitrogen containing groups

Hebeish, A.; El‐Rafie, M. H.; El-Sisi, F.

doi:10.1002/apmc.1981.050950115

Cited by 16 publications

(2 citation statements)

References 24 publications

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“…[1][2][3][4][5][6] The purpose of grafting of vinyl monomers onto cellulose and wool fibers, in most of the reports, 7-10 is to produce synthetic fibers with improved properties. In addition, the graft copolymerization of vinyl monomers onto jute fibers has been reported, [11][12][13][14] which are very important to the manufacture of good quality fabrics, white paper, and board with/without bleaching. However, except for one or two reports on grafting onto cellulose pulp, reports on grafting onto jute pulp are scanty.…”

Section: Introductionmentioning

confidence: 99%

Preparation, characterization, and properties of unbleached, bleached, and grafted pulps from JRC‐321 variety jute fiber

Sahoo

Swain

DebSarkar

2001

J of Applied Polymer Sci

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Graft copolymerization onto jute pulps opened the door to new concepts in pulp and paper research. Jute pulp from the JRC-321 variety white jute fiber was prepared by the alkaline sulfite pulping process. The pulp obtained was bleached by the chlorination, extraction, and hypochlorite sequence technique to remove excess lignin for making bright and good quality paper. Special attention was focused on the graft copolymerization of acrylamide monomer onto the unbleached and bleached pulps by the use of a complex initiating system: Cu(II)/glycine/KHSO 5 in aqueous solution. It was found that percentage grafting was high in the case of bleached pulp. The grafted pulps so obtained were characterized by FTIR and their thermal behavior was characterized by TGA. Their mechanical properties such as tensile strength, percentage elongation, and tenacity were measured and compared. The physical properties such as rot-resistance and water-retention capacity of the grafted and the ungrafted pulps were determined. The effect of the percentage grafting variation on the above mentioned properties was examined.

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Section: Introductionmentioning

confidence: 99%

Preparation, characterization, and properties of unbleached, bleached, and grafted pulps from JRC‐321 variety jute fiber

Sahoo

Swain

DebSarkar

2001

J of Applied Polymer Sci

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“…The synthetic graft copolymers of natural polymers, such as cotton and other cellulosic fibers, silk, wool, etc., exhibited excellent properties in addition to showing their original properties. Although a lot of work had been done on graft copolymerization of vinyl monomers onto cellulosic, protein, and other textile fibers,1–3 comparatively much less was reported on grafting of vinyl monomers onto jute fiber. Therefore, graft copolymerization of vinyl monomers onto jute fiber has received considerable attention in the recent years.…”

Section: Introductionmentioning

confidence: 99%

Graft copolymerization of nitrile monomers onto bleached jute fiber using potassium persulfate system and their textile characteristics

Mondal

Alam

Sayeed

2004

J of Applied Polymer Sci

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Graft copolymerization of nitrile monomers, such as acrylonitrile and methacrylonitrile, onto bleached jute fiber was carried out by using K 2 S 2 O 8 /FeSO 4 redox system in nitrogen atmosphere and their effect on the textile characteristics was also investigated. Percent graft yield increased with the increase of concentrations of monomer, initiator, and catalyst, reaction time, and reaction temperature up to a certain value, and, thereafter, it decreased. The effect of percent grafting efficiency was similar to that of percent graft yield, except for the monomer concentration. The increase of percent graft yield was dependent on the availability of jute-macroradicals as well as monomer radicals. Sometimes the predominancy of homopolymerization over grafting and the premature termination of growing grafted chains occurred because of the higher monomer radicals and excess primary radicals, SO 4 Ϫ• and • OH, from K 2 S 2 O 8 initiator. The percent graft yield of acrylonitrile and methacrylonitrile was 20.5 and 29.1%, respectively. Higher graft yield for methacrylonitrile might be due to the methyl group present in it. Infrared spectra at 2229 -2235 cm Ϫ1 of acrylonitrile-and methacrylonitrile-grafted jute strongly supported the graft formation. Grafting of jute fiber improved the thermal stability, protected from photooxidative degradation, and decreased swellability as well as dyeability, etc.

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Graft copolymerization of cotton fabric with different vinyl monomers using ferrous cellulose thiocarbonate hydrogen peroxide redox system

et al. 1985

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The effects of hydrogen peroxide concentration, ferrous ion concentration, polymerization temperature and other factors on the graft polymerization of methacrylic acid and other vinyl monomers onto cotton using the redox system ferrous cellulose thiocarbonatehydrogen peroxide were investigated. Die Pfropfcopolymerisation von Baumwollgewebe mit Vinylmonomeren unter Verwendung des Redoxsystems Eisencellulosethiocarbonat-WasserstoffperoxidDer EinfluB der Wasserstoffperoxidkonzentration, der Few-Konzentration, der Polymerisa tionstemperatur und weiterer Faktoren auf die Pfropfung von Methacrylsaure auf Baumwolle mit dem Redoxsystem Eisencellulosethiocarbonat-Wasserstoffperoxid wurde untersucht. In die Untersuchung wurden einige weitere Vinylmonomere mit einbezogen.

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Graft copolymerization of vinyl monomers on modified cottons, XXII. Ceric‐induced grafting of acrylonitrile on cellulose bearing nitrogen containing groups

Cited by 16 publications

References 24 publications

Preparation, characterization, and properties of unbleached, bleached, and grafted pulps from JRC‐321 variety jute fiber

Preparation, characterization, and properties of unbleached, bleached, and grafted pulps from JRC‐321 variety jute fiber

Graft copolymerization of nitrile monomers onto bleached jute fiber using potassium persulfate system and their textile characteristics

Graft copolymerization of cotton fabric with different vinyl monomers using ferrous cellulose thiocarbonate hydrogen peroxide redox system

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