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An optimization study of the graft polymerization of HEMA onto leather / R. A. Masoud in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 87, N° 4 (07-08/2003)

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inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 87, N° 4 (07-08/2003) . - p. 159-161

Titre :	An optimization study of the graft polymerization of HEMA onto leather
Type de document :	texte imprimé
Auteurs :	R. A. Masoud, Auteur
Année de publication :	2003
Article en page(s) :	p. 159-161
Note générale :	Bibliogr.
Langues :	Anglais (eng)
Catégories :	Allongement à la rupture Copolymères greffés Cuirs et peaux -- Propriétés mécaniques Essais dynamiques Polyméthacrylate d'hydroxyéthyle Traction (mécanique)
Index. décimale :	675 Technologie du cuir et de la fourrure
Résumé :	2-Hydroxyethyl methacrylate (HEMA) has been graft copolymerized onto chrome-tanned leather using benzoyl peroxide in methanol as the initiator. The influence of synthesis variables, including monomer concentration, initiator selection and temperature, have been investigated. As the graft polymerization of HEMA onto chrome- tanned leather was increased, water absorption was reduced and tensile strength and elongation at break improved. FT-IR spectroscopic analysis of ungrafted and grafted leather showed a band at 1735 cm-1 corresponding to the carbonyl of the ester of acrylate (HEMA), while subsequent SEM analysis revealed a decrease in the porosity of the leather surface as a result of the graft polymerization.
Note de contenu :	- EXPERIMENTAL PROCEDURES : - Materials - Graft polymerization method - Elongation at break - RESULTS AND DISCUSSION : - Effect of benzoyl peroxide [B.P]concentration - Effect of time - Effect of HEMA monomer concentration - IR spectra - Water absorption - Scanning Electron Microscope SEM - Table 1 : Effect of the level of graft polymerization of HEMA onto chrome-tanned leather on water absorption - Table 2 : Effect of the degree of grafting on Tensile strength and elongation at break
En ligne :	https://drive.google.com/file/d/1o_G0vxMYeHCALuAxQjr_aQrRCkq0lKdW/view?usp=drive [...]
Format de la ressource électronique :	Pdf
Permalink :	https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39772

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