Photoinitiated Polymerization of Methacrylamide with Cotton Cellulose

Reine, Alden H.; Arthur, Jett C.

doi:10.1177/004051757204200304

Cited by 24 publications

(5 citation statements)

References 7 publications

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“…In the 1970s, ultraviolet (UV) irradiation has been used to generate radicals on the surfaces of cotton cellulose in aqueous conditions, initiating graft polymerization without the use of an external initiator. 23 This method is called UV grafting. Subsequently, the UV grafting method has been reported in native cellulose to develop high-strength composites.…”

Section: Introductionmentioning

confidence: 99%

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Toward Strong and Tough Wood-Based Hydrogels for Sensors

et al. 2021

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The purpose of this research is to develop strong and tough wood-based hydrogels, which are reinforced by an aligned cellulosic wood skeleton. The hypothesis is that improved interfacial interaction between the wood cell wall and a polymer is of great importance for improving the mechanical performance. To this end, a facile and green approach, called ultraviolet (UV) grafting, was performed on the polyacrylamide (PAM)-infiltrated wood skeleton without using initiators. An important finding was that PAM-grafted cellulose nanofiber (CNF) architectures formed in the obtained hydrogels under UV irradiation, where CNFs themselves serve as both initiators and cross-linkers. Moreover, an alkali swelling treatment was utilized to improve the accessibility of the wood cell wall before UV irradiation and thus facilitate grafting efficiency. The resulting alkali-treated Wood-g-PAM hydrogels exhibited significantly higher tensile properties than those of the Wood/PAM hydrogel and were further assembled into conductive devices for sensor applications. We believe that this UV grafting strategy may facilitate the development of strong wood-based composites with interesting features.

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Section: Introductionmentioning

confidence: 99%

“…Therefore, there is a demand for an alternative grafting method that is both facile and green. In the 1970s, ultraviolet (UV) irradiation has been used to generate radicals on the surfaces of cotton cellulose in aqueous conditions, initiating graft polymerization without the use of an external initiator . This method is called UV grafting.…”

Section: Introductionmentioning

confidence: 99%

Toward Strong and Tough Wood-Based Hydrogels for Sensors

et al. 2021

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“…[1][2][3][4][5][6] It is known that the photo-induced graft copolymerization is useful to get a good surface treatment of polymer films. 7) Ogiwara et al reported that hydrogen peroxide8) and a mixture of methanol and water9) are considerably effective as photosensitizer and solvent, respectively to obtain high grafting in the photoinduced graft copolymerization of methyl methacrylate (MMA) on cellulose.…”

Section: Introductionmentioning

confidence: 99%

Chemical Modification of Cotton Fabrics -Photo-Induced Graft Copolymerization of Methyl Methacrylate Onto Cotton Fabrics

Kanazawa

Katoh²,

Nishida

1982

Sen-i Gakkaishi

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Graft copolymerization of methyl methacrylate onto cotton fabrics was carried out by the irradiation of monochromatic light of 365 nm wave length in a methanol-water mixed system with hydrogen peroxide as photosensitizer. When the graft copolymerization was made in the various mixing ratios of methanol and water, a maximum of % grafting was obtained at about 36 volume % methanol in the methanol-water mixture. The grafting increased with the irradiation time up to about 6 hr and decreased after that. The number average degrees of polymerization of the graft poly(methyl methacrylate) were estimated to be 14,500 and 15,100 for the fabrics of 35.0% and 53.9% grafting, respectively. Physical tests were made for the grafted fabrics. No decrease of tensile strength by the photo-irradiation was observed for them. Somewhat less tearing strength, high bending resistance and water repellency were obtained by grafting. Moreover, they gave very good dyeability with disperse dye both in dyeing and in heat-transfer printing.

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“…'Near-uv radiation has also been used in unsensitized free-radical reactions to initiate copolymerization of vinyl monomers with cellulose [2,3,13,14,[20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Wrinkle-Resistant Cotton by Photo-Initiated Reaction with N-Methylolacrylamide Followed by Crosslinking Reactions1

Reinhardt

Arthur

1980

Textile Research Journal

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A wrinkle-resistant cotton fabric was produced by photo-initiated, free-radical reaction with Nmethylolacrylamide monomer from aqueous solution to form a poly(N-methylolacrylamide) copolymer, followed by crosslinking reactions of the methylol groups of the copolymer with cellulose. The product had increased conditioned and wet wrinkle-recovery angles and retained breaking and tearing strengths and stiffness values in the ranges normally obtained for wrinkle-resistant cottons. The efficiency of the conversion of monomer to polymer was greater when the cotton-monomer solution was irradiated wet than when it was irradiated dry, and greater when irradiated with 254-and 300-nm ultraviolet light than when irradiated with 350-nm light. Catalysts used to initiate reaction of methylol groups were about equally effective whether they were included in the initial monomer solution or added to modified cotton fabric after copolymer formation.

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Photoinitiated Polymerization of Methacrylamide with Cotton Cellulose

Cited by 24 publications

References 7 publications

Toward Strong and Tough Wood-Based Hydrogels for Sensors

Toward Strong and Tough Wood-Based Hydrogels for Sensors

Chemical Modification of Cotton Fabrics -Photo-Induced Graft Copolymerization of Methyl Methacrylate Onto Cotton Fabrics

Wrinkle-Resistant Cotton by Photo-Initiated Reaction with N-Methylolacrylamide Followed by Crosslinking Reactions1

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