The use of comb-type copolymers to sustain the surface bactericidal effect of highly water-soluble cationic biocides / J. J. Gerrard in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 88, B2 (05/2005)  

[article]  inSURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 88, B2 (05/2005) . - p. 83-91 Titre : The use of comb-type copolymers to sustain the surface bactericidal effect of highly water-soluble cationic biocides Type de document : texte imprimé Auteurs : J. J. Gerrard, Auteur ; J. Moore, Auteur ; J. A. Annable, Auteur Année de publication : 2005 Article en page(s) : p. 83-91 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antibactériens Chimie analytique Copolymères Formulation (Génie chimique) Hydrophobie Polyacryliques Polyaddition Polymères ramifiés Spectroscopie ultraviolette Index. décimale : 667.9 Revêtements et enduits Résumé : A series of free radical comb-type acrylic copolymers was prepared in a solution incorporating charged and/or neutral stabilising species on the backbone. The polymer solutions were formulated with cationic biocides to give physically stable formulations with a long shelf life. Furthermore, through the control of polymer architecture of both the side-chain and the backbone, hydrophobicity, a controlled release of a biocide could be achieved. This technology has resulted in the design of temporary coatings demonstrating a sustained surface disinfecting effect. In laboratory trials, coated surfaces with polymeric/biocidal formulations continued to show a disinfection effect after several washes. Note de contenu : - EXPERIMENTAL : Preparation of comb copolymers - Synthesis of comb copolymers - Formulation of comb copolymers with bactericide PHMB - TEST PROTOCOLS : Acid Red 52 dye test (test protocol 1) - Preparation of comb copolymers and PHMB formulations (test protocol 2) - Coating for formulations (test protocol 3) - Release of PHMB from a dried coated formulation (test protocol 4) - Calibration of PHMB using Lambda 900 UV/VIS/NIR spectrometer (test protocol 5) - Calculation of minimum inhibitory concentrations (test protocol 6) - Residual bactericidal activity (test protocol 7) - Repeat inoculation test (test protocol 8à - RESULTS AND DISCUSSION : Release of PHMB from formulationsusing test protocol N° 4 - Optimisation of PHMB loading - Residual bactericidal activity using test protocol N° 7 DOI : 10.1007/BF02699538 En ligne : https://link.springer.com/content/pdf/10.1007/BF02699538.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5420 [article]

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