Some physical properties and structure determination of vinyl monomer-grafted antheraea assama silk fiber / A. M. Das in Industrial & engineering chemistry research, Vol. 48 N° 20 (Octobre 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N° 20 (Octobre 2009) . - pp. 9338–9345 Titre : Some physical properties and structure determination of vinyl monomer-grafted antheraea assama silk fiber Type de document : texte imprimé Auteurs : A. M. Das, Auteur ; P. K. Chowdhury, Auteur ; C. N. Saikia, Auteur Année de publication : 2010 Article en page(s) : pp. 9338–9345 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Vinyl monomer Antheraea assama silk fiber Résumé : Vinyl monomer was used in aqueous medium with CeIV initiator for chemical modification of Antheraea assama silk fiber at different reaction conditions. The rate of grafting (%) was evaluated as a function of the concentration of monomer (AAm) and initiator (CeIV). The graft copolymerization of silk-fibroin with vinyl monomer (acryl amide) were characterized with Fourier transform infrared spectroscopy (FT-IR) and UV−vis spectroscopy (UV). Thermal analysis was done by thermogravimetric (TG), differential thermogravimetry (DTG), and differential scanning calorimetry (DSC) techniques. The kinetic parameters were also studied using Coats and Redfern method with Fortran 77 computer programming. The structural changes of the silk molecule, grafted with vinyl monomer, were studied in relation to the weight gain and X-ray diffraction curves. Moreover, the grafted products were further evaluated to see the improvement in water staining, water retention capacity, and also tensile properties. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9004755 [article] Some physical properties and structure determination of vinyl monomer-grafted antheraea assama silk fiber [texte imprimé] / A. M. Das, Auteur ; P. K. Chowdhury, Auteur ; C. N. Saikia, Auteur . - 2010 . - pp. 9338–9345. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 20 (Octobre 2009) . - pp. 9338–9345 Mots-clés : Vinyl monomer Antheraea assama silk fiber Résumé : Vinyl monomer was used in aqueous medium with CeIV initiator for chemical modification of Antheraea assama silk fiber at different reaction conditions. The rate of grafting (%) was evaluated as a function of the concentration of monomer (AAm) and initiator (CeIV). The graft copolymerization of silk-fibroin with vinyl monomer (acryl amide) were characterized with Fourier transform infrared spectroscopy (FT-IR) and UV−vis spectroscopy (UV). Thermal analysis was done by thermogravimetric (TG), differential thermogravimetry (DTG), and differential scanning calorimetry (DSC) techniques. The kinetic parameters were also studied using Coats and Redfern method with Fortran 77 computer programming. The structural changes of the silk molecule, grafted with vinyl monomer, were studied in relation to the weight gain and X-ray diffraction curves. Moreover, the grafted products were further evaluated to see the improvement in water staining, water retention capacity, and also tensile properties. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9004755

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire