Synthesis and characterization of degradable polyurethane based on poly(ether ester) polyols (PPG-2000 and ε-caprolactone/lactic acid) for marine antifouling / Jie Yi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 3 (05/2015)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 12, N° 3 (05/2015) . - p. 525-532 Titre : Synthesis and characterization of degradable polyurethane based on poly(ether ester) polyols (PPG-2000 and ε-caprolactone/lactic acid) for marine antifouling Type de document : texte imprimé Auteurs : Jie Yi, Auteur ; Runtao Ren, Auteur ; Congshu Huang, Auteur ; Chuyi Zhang, Auteur ; Yupu Ma, Auteur Année de publication : 2015 Article en page(s) : p. 525-532 Note générale : Bibliogr. Langues : Américain (ame) Catégories : e-caprolactone Hydrolyse Marines (peinture) Polyéther ester Polymères -- Biodégradation Polymères -- Synthèse Polyols Revêtements -- Détérioration:Peinture -- Détérioration Revêtements antisalissures:Peinture antisalissures Index. décimale : 667.9 Revêtements et enduits Résumé : Poly(ether ester) polyols consisting of polypropylene glycol-2000 (PPG-2000) and different ratios of ε-caprolactone and lactic acid (LA) had been prepared by polycondensation reactions. Degradable polyurethane (PU) films were prepared with poly (ether ester) polyols and hexamethylene diisocyanate trimer. Hydrolytic degradation experiments demonstrated that PU films could be degradable in artificial seawater. Importantly, the hydrolytic degradation of PU films in artificial seawater increased with the increase of LA content. The results also showed that the surfaces of PU films were renewed and kept active, as revealed by the scanning electron microscope micrographs of degradation PU coatings. Moreover, the copper ion release rates of PU coatings prepared with poly(ether ester) polyols reached steady state at about 35 days. The degradable polyurethanes based on poly(ether ester) polyols (PPG-2000, ε-caprolactone, and LA) could be effective and durable resins for marine antifouling. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of poly(ether ester) polyol - Preparation of PU fils - The determination of properties - RESULTS AND DISCUSSION : Synthesis and characterization of poly(ether ester) polyols and PU films - Water absorption rate of PU films - Hydrolytic degradation of PU chips - Copper ion release rates of PU coatings - SEM microcraphs of PU-CL10/LA2 coatings DOI : 10.1007/s11998-014-9646-z En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9646-z.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24176 [article]

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