Synthesis of CO2 - philic polysiloxane with N - halamine side groups for biocidal coating on cotton / Chen, Yong in Industrial & engineering chemistry research, Vol. 51 N° 27 (Juillet 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 27 (Juillet 2012) . - pp. 9260-9265 Titre : Synthesis of CO2 - philic polysiloxane with N - halamine side groups for biocidal coating on cotton Type de document : texte imprimé Auteurs : Chen, Yong, Auteur ; Xu-shi Zhong, Auteur ; Qiang Zhang, Auteur Année de publication : 2012 Article en page(s) : pp. 9260-9265 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Carbon dioxide Résumé : A CO2-philic antibacterial precursor was synthesized through hydrosilylation reaction of poly(methylhydrosiloxane) (PMHS) and tert-butyl acrylate in the presence of platinum-based catalyst. Carboxyl groups were then generated by hydrolyzing the precursor with trifluoroacetic acid to bond tert-butylamine molecules via amide bonds that were further chlorinated to N-halamines with tert-butyl hypochlorite. The resultant N-halamine polysiloxane was coated on cotton by adsorption from supercritical CO2 (scCO2) to confer biocidal ability. This coating procedure provides an efficient way to attach antibacterial polymers onto substrates without using covalent bonds which limit the structure designs. Presented data showed that the antibacterial layer was stable toward washing and abrasion and provided potent biocidal activities against Staphylococcus aureus and Escherichia coli. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26132262 [article] Synthesis of CO2 - philic polysiloxane with N - halamine side groups for biocidal coating on cotton [texte imprimé] / Chen, Yong, Auteur ; Xu-shi Zhong, Auteur ; Qiang Zhang, Auteur . - 2012 . - pp. 9260-9265. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 27 (Juillet 2012) . - pp. 9260-9265 Mots-clés : Carbon dioxide Résumé : A CO2-philic antibacterial precursor was synthesized through hydrosilylation reaction of poly(methylhydrosiloxane) (PMHS) and tert-butyl acrylate in the presence of platinum-based catalyst. Carboxyl groups were then generated by hydrolyzing the precursor with trifluoroacetic acid to bond tert-butylamine molecules via amide bonds that were further chlorinated to N-halamines with tert-butyl hypochlorite. The resultant N-halamine polysiloxane was coated on cotton by adsorption from supercritical CO2 (scCO2) to confer biocidal ability. This coating procedure provides an efficient way to attach antibacterial polymers onto substrates without using covalent bonds which limit the structure designs. Presented data showed that the antibacterial layer was stable toward washing and abrasion and provided potent biocidal activities against Staphylococcus aureus and Escherichia coli. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26132262

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